id	sid	tid	token	lemma	pos
ajst-26222	1	1	academic	academic	ADJ
ajst-26222	1	2	journal	journal	NOUN
ajst-26222	1	3	of	of	ADP
ajst-26222	1	4	science	science	NOUN
ajst-26222	1	5	and	and	CCONJ
ajst-26222	1	6	technology	technology	NOUN
ajst-26222	1	7	issn	issn	NOUN
ajst-26222	1	8	:	:	PUNCT
ajst-26222	1	9	2771	2771	NUM
ajst-26222	1	10	-	-	SYM
ajst-26222	1	11	3032	3032	NUM
ajst-26222	1	12	|	|	NOUN
ajst-26222	1	13	vol	vol	NOUN
ajst-26222	1	14	.	.	PROPN
ajst-26222	2	1	12	12	NUM
ajst-26222	2	2	,	,	PUNCT
ajst-26222	2	3	no	no	INTJ
ajst-26222	2	4	.	.	NOUN
ajst-26222	2	5	3	3	NUM
ajst-26222	2	6	,	,	PUNCT
ajst-26222	2	7	2024	2024	NUM
ajst-26222	3	1	221	221	NUM
ajst-26222	3	2	secure	secure	ADJ
ajst-26222	3	3	and	and	CCONJ
ajst-26222	3	4	efficient	efficient	ADJ
ajst-26222	3	5	k‐anonymous	k‐anonymous	PUNCT
ajst-26222	3	6	trajectory	trajectory	NOUN
ajst-26222	3	7	privacy	privacy	NOUN
ajst-26222	3	8	protection	protection	NOUN
ajst-26222	3	9	method	method	NOUN
ajst-26222	3	10	based	base	VERB
ajst-26222	3	11	on	on	ADP
ajst-26222	3	12	differential	differential	PROPN
ajst-26222	3	13	privacy	privacy	PROPN
ajst-26222	3	14	yuanlong	yuanlong	PROPN
ajst-26222	3	15	fan1	fan1	PROPN
ajst-26222	3	16	,	,	PUNCT
ajst-26222	3	17	*	*	PROPN
ajst-26222	3	18	,	,	PUNCT
ajst-26222	3	19	cheng	cheng	PROPN
ajst-26222	3	20	song2	song2	PROPN
ajst-26222	3	21	,	,	PUNCT
ajst-26222	3	22	zhichao	zhichao	X
ajst-26222	3	23	wang3	wang3	X
ajst-26222	3	24	1	1	NUM
ajst-26222	3	25	college	college	NOUN
ajst-26222	3	26	of	of	ADP
ajst-26222	3	27	computer	computer	NOUN
ajst-26222	3	28	science	science	NOUN
ajst-26222	3	29	and	and	CCONJ
ajst-26222	3	30	technology	technology	NOUN
ajst-26222	3	31	,	,	PUNCT
ajst-26222	3	32	henan	henan	PROPN
ajst-26222	3	33	polytechnic	polytechnic	PROPN
ajst-26222	3	34	university	university	PROPN
ajst-26222	3	35	,	,	PUNCT
ajst-26222	3	36	jiaozuo	jiaozuo	PROPN
ajst-26222	3	37	,	,	PUNCT
ajst-26222	3	38	china	china	PROPN
ajst-26222	3	39	2	2	NUM
ajst-26222	3	40	college	college	NOUN
ajst-26222	3	41	of	of	ADP
ajst-26222	3	42	computer	computer	NOUN
ajst-26222	3	43	science	science	NOUN
ajst-26222	3	44	and	and	CCONJ
ajst-26222	3	45	technology	technology	NOUN
ajst-26222	3	46	,	,	PUNCT
ajst-26222	3	47	henan	henan	PROPN
ajst-26222	3	48	polytechnic	polytechnic	PROPN
ajst-26222	3	49	university	university	PROPN
ajst-26222	3	50	,	,	PUNCT
ajst-26222	3	51	jiaozuo	jiaozuo	PROPN
ajst-26222	3	52	,	,	PUNCT
ajst-26222	3	53	china	china	PROPN
ajst-26222	3	54	3	3	NUM
ajst-26222	3	55	college	college	NOUN
ajst-26222	3	56	of	of	ADP
ajst-26222	3	57	computer	computer	NOUN
ajst-26222	3	58	science	science	NOUN
ajst-26222	3	59	and	and	CCONJ
ajst-26222	3	60	technology	technology	NOUN
ajst-26222	3	61	,	,	PUNCT
ajst-26222	3	62	henan	henan	PROPN
ajst-26222	3	63	polytechnic	polytechnic	PROPN
ajst-26222	3	64	university	university	PROPN
ajst-26222	3	65	,	,	PUNCT
ajst-26222	3	66	jiaozuo	jiaozuo	PROPN
ajst-26222	3	67	,	,	PUNCT
ajst-26222	3	68	china	china	PROPN
ajst-26222	3	69	*	*	PUNCT
ajst-26222	3	70	corresponding	correspond	VERB
ajst-26222	3	71	author	author	NOUN
ajst-26222	3	72	:	:	PUNCT
ajst-26222	3	73	yuanlong	yuanlong	PROPN
ajst-26222	3	74	fan	fan	PROPN
ajst-26222	3	75	abstract	abstract	PROPN
ajst-26222	3	76	:	:	PUNCT
ajst-26222	3	77	the	the	DET
ajst-26222	3	78	location	location	NOUN
ajst-26222	3	79	-	-	PUNCT
ajst-26222	3	80	based	base	VERB
ajst-26222	3	81	service	service	NOUN
ajst-26222	3	82	scheme	scheme	NOUN
ajst-26222	3	83	have	have	AUX
ajst-26222	3	84	already	already	ADV
ajst-26222	3	85	involved	involve	VERB
ajst-26222	3	86	in	in	ADP
ajst-26222	3	87	every	every	DET
ajst-26222	3	88	aspect	aspect	NOUN
ajst-26222	3	89	of	of	ADP
ajst-26222	3	90	people	people	NOUN
ajst-26222	3	91	's	's	PART
ajst-26222	3	92	daily	daily	ADJ
ajst-26222	3	93	life	life	NOUN
ajst-26222	3	94	and	and	CCONJ
ajst-26222	3	95	are	be	AUX
ajst-26222	3	96	increasingly	increasingly	ADV
ajst-26222	3	97	used	use	VERB
ajst-26222	3	98	in	in	ADP
ajst-26222	3	99	various	various	ADJ
ajst-26222	3	100	industries	industry	NOUN
ajst-26222	3	101	.	.	PUNCT
ajst-26222	4	1	aiming	aim	VERB
ajst-26222	4	2	at	at	ADP
ajst-26222	4	3	the	the	DET
ajst-26222	4	4	problem	problem	NOUN
ajst-26222	4	5	of	of	ADP
ajst-26222	4	6	the	the	DET
ajst-26222	4	7	security	security	NOUN
ajst-26222	4	8	and	and	CCONJ
ajst-26222	4	9	efficiency	efficiency	NOUN
ajst-26222	4	10	of	of	ADP
ajst-26222	4	11	mobile	mobile	ADJ
ajst-26222	4	12	terminal	terminal	ADJ
ajst-26222	4	13	users	user	NOUN
ajst-26222	4	14	’	’	PART
ajst-26222	4	15	trajectory	trajectory	NOUN
ajst-26222	4	16	privacy	privacy	NOUN
ajst-26222	4	17	protection	protection	NOUN
ajst-26222	4	18	in	in	ADP
ajst-26222	4	19	location	location	NOUN
ajst-26222	4	20	-	-	PUNCT
ajst-26222	4	21	based	base	VERB
ajst-26222	4	22	service	service	NOUN
ajst-26222	4	23	,	,	PUNCT
ajst-26222	4	24	we	we	PRON
ajst-26222	4	25	propose	propose	VERB
ajst-26222	4	26	a	a	DET
ajst-26222	4	27	k	k	ADJ
ajst-26222	4	28	-	-	ADJ
ajst-26222	4	29	anonymous	anonymous	ADJ
ajst-26222	4	30	trajectory	trajectory	NOUN
ajst-26222	4	31	privacy	privacy	PROPN
ajst-26222	4	32	protection	protection	NOUN
ajst-26222	4	33	scheme	scheme	NOUN
ajst-26222	4	34	based	base	VERB
ajst-26222	4	35	on	on	ADP
ajst-26222	4	36	differential	differential	ADJ
ajst-26222	4	37	privacy	privacy	NOUN
ajst-26222	4	38	.	.	PUNCT
ajst-26222	5	1	this	this	DET
ajst-26222	5	2	scheme	scheme	NOUN
ajst-26222	5	3	adopts	adopt	VERB
ajst-26222	5	4	differential	differential	NOUN
ajst-26222	5	5	privacy	privacy	NOUN
ajst-26222	5	6	technology	technology	NOUN
ajst-26222	5	7	to	to	PART
ajst-26222	5	8	add	add	VERB
ajst-26222	5	9	laplace	laplace	NOUN
ajst-26222	5	10	noise	noise	NOUN
ajst-26222	5	11	to	to	ADP
ajst-26222	5	12	the	the	DET
ajst-26222	5	13	user	user	NOUN
ajst-26222	5	14	's	's	PART
ajst-26222	5	15	trajectory	trajectory	NOUN
ajst-26222	5	16	many	many	ADJ
ajst-26222	5	17	times	time	NOUN
ajst-26222	5	18	to	to	PART
ajst-26222	5	19	generate	generate	VERB
ajst-26222	5	20	2k	2k	NUM
ajst-26222	5	21	noise	noise	NOUN
ajst-26222	5	22	trajectory	trajectory	NOUN
ajst-26222	5	23	,	,	PUNCT
ajst-26222	5	24	and	and	CCONJ
ajst-26222	5	25	then	then	ADV
ajst-26222	5	26	according	accord	VERB
ajst-26222	5	27	to	to	ADP
ajst-26222	5	28	the	the	DET
ajst-26222	5	29	trajectory	trajectory	NOUN
ajst-26222	5	30	similarity	similarity	NOUN
ajst-26222	5	31	to	to	PART
ajst-26222	5	32	determine	determine	VERB
ajst-26222	5	33	k-1	k-1	PROPN
ajst-26222	5	34	noise	noise	VERB
ajst-26222	5	35	users	user	NOUN
ajst-26222	5	36	whose	whose	DET
ajst-26222	5	37	trajectory	trajectory	NOUN
ajst-26222	5	38	are	be	AUX
ajst-26222	5	39	similar	similar	ADJ
ajst-26222	5	40	to	to	ADP
ajst-26222	5	41	the	the	DET
ajst-26222	5	42	user	user	NOUN
ajst-26222	5	43	trajectory	trajectory	NOUN
ajst-26222	5	44	,	,	PUNCT
ajst-26222	5	45	and	and	CCONJ
ajst-26222	5	46	sets	set	VERB
ajst-26222	5	47	them	they	PRON
ajst-26222	5	48	and	and	CCONJ
ajst-26222	5	49	the	the	DET
ajst-26222	5	50	real	real	ADJ
ajst-26222	5	51	user	user	NOUN
ajst-26222	5	52	as	as	ADP
ajst-26222	5	53	an	an	DET
ajst-26222	5	54	anonymous	anonymous	ADJ
ajst-26222	5	55	user	user	NOUN
ajst-26222	5	56	group	group	NOUN
ajst-26222	5	57	,	,	PUNCT
ajst-26222	5	58	and	and	CCONJ
ajst-26222	5	59	then	then	ADV
ajst-26222	5	60	uses	use	VERB
ajst-26222	5	61	the	the	DET
ajst-26222	5	62	anonymous	anonymous	PROPN
ajst-26222	5	63	user	user	NOUN
ajst-26222	5	64	group	group	NOUN
ajst-26222	5	65	to	to	PART
ajst-26222	5	66	request	request	VERB
ajst-26222	5	67	lbs	lbs	NOUN
ajst-26222	5	68	services	service	NOUN
ajst-26222	5	69	.	.	PUNCT
ajst-26222	6	1	security	security	NOUN
ajst-26222	6	2	analysis	analysis	NOUN
ajst-26222	6	3	shows	show	VERB
ajst-26222	6	4	that	that	SCONJ
ajst-26222	6	5	the	the	DET
ajst-26222	6	6	scheme	scheme	NOUN
ajst-26222	6	7	satisfies	satisfy	VERB
ajst-26222	6	8	the	the	DET
ajst-26222	6	9	security	security	NOUN
ajst-26222	6	10	features	feature	NOUN
ajst-26222	6	11	of	of	ADP
ajst-26222	6	12	anonymity	anonymity	NOUN
ajst-26222	6	13	,	,	PUNCT
ajst-26222	6	14	unforgeability	unforgeability	NOUN
ajst-26222	6	15	,	,	PUNCT
ajst-26222	6	16	and	and	CCONJ
ajst-26222	6	17	anti	anti	ADJ
ajst-26222	6	18	-	-	ADJ
ajst-26222	6	19	counterfeiting	counterfeiting	ADJ
ajst-26222	6	20	attack	attack	NOUN
ajst-26222	6	21	.	.	PUNCT
ajst-26222	7	1	the	the	DET
ajst-26222	7	2	simulation	simulation	NOUN
ajst-26222	7	3	results	result	NOUN
ajst-26222	7	4	show	show	VERB
ajst-26222	7	5	that	that	SCONJ
ajst-26222	7	6	the	the	DET
ajst-26222	7	7	scheme	scheme	NOUN
ajst-26222	7	8	not	not	PART
ajst-26222	7	9	only	only	ADV
ajst-26222	7	10	guarantees	guarantee	VERB
ajst-26222	7	11	the	the	DET
ajst-26222	7	12	similarity	similarity	NOUN
ajst-26222	7	13	between	between	ADP
ajst-26222	7	14	the	the	DET
ajst-26222	7	15	false	false	ADJ
ajst-26222	7	16	trajectory	trajectory	NOUN
ajst-26222	7	17	and	and	CCONJ
ajst-26222	7	18	the	the	DET
ajst-26222	7	19	real	real	ADJ
ajst-26222	7	20	trajectory	trajectory	NOUN
ajst-26222	7	21	but	but	CCONJ
ajst-26222	7	22	also	also	ADV
ajst-26222	7	23	has	have	VERB
ajst-26222	7	24	higher	high	ADJ
ajst-26222	7	25	execution	execution	NOUN
ajst-26222	7	26	efficiency	efficiency	NOUN
ajst-26222	7	27	.	.	PUNCT
ajst-26222	8	1	keywords	keyword	NOUN
ajst-26222	8	2	:	:	PUNCT
ajst-26222	8	3	mechanical	mechanical	ADJ
ajst-26222	8	4	engineering	engineering	NOUN
ajst-26222	8	5	;	;	PUNCT
ajst-26222	8	6	manufacturing	manufacturing	NOUN
ajst-26222	8	7	technology	technology	NOUN
ajst-26222	8	8	;	;	PUNCT
ajst-26222	8	9	electrical	electrical	ADJ
ajst-26222	8	10	automation	automation	NOUN
ajst-26222	8	11	.	.	PUNCT
ajst-26222	9	1	1	1	X
ajst-26222	9	2	.	.	X
ajst-26222	9	3	introduction	introduction	NOUN
ajst-26222	9	4	with	with	ADP
ajst-26222	9	5	the	the	DET
ajst-26222	9	6	development	development	NOUN
ajst-26222	9	7	of	of	ADP
ajst-26222	9	8	mobile	mobile	ADJ
ajst-26222	9	9	communication	communication	NOUN
ajst-26222	9	10	technology	technology	NOUN
ajst-26222	9	11	and	and	CCONJ
ajst-26222	9	12	location	location	NOUN
ajst-26222	9	13	technology	technology	NOUN
ajst-26222	9	14	,	,	PUNCT
ajst-26222	9	15	lbs	lb	VERB
ajst-26222	10	1	[	[	PUNCT
ajst-26222	10	2	1	1	NUM
ajst-26222	10	3	-	-	SYM
ajst-26222	10	4	3	3	NUM
ajst-26222	10	5	]	]	PUNCT
ajst-26222	10	6	is	be	AUX
ajst-26222	10	7	widely	widely	ADV
ajst-26222	10	8	used	use	VERB
ajst-26222	10	9	in	in	ADP
ajst-26222	10	10	various	various	ADJ
ajst-26222	10	11	fields	field	NOUN
ajst-26222	10	12	,	,	PUNCT
ajst-26222	10	13	and	and	CCONJ
ajst-26222	10	14	users	user	NOUN
ajst-26222	10	15	with	with	ADP
ajst-26222	10	16	mobile	mobile	ADJ
ajst-26222	10	17	terminals	terminal	NOUN
ajst-26222	10	18	can	can	AUX
ajst-26222	10	19	access	access	VERB
ajst-26222	10	20	information	information	NOUN
ajst-26222	10	21	services	service	NOUN
ajst-26222	10	22	anytime	anytime	ADV
ajst-26222	10	23	and	and	CCONJ
ajst-26222	10	24	anywhere	anywhere	ADV
ajst-26222	10	25	,	,	PUNCT
ajst-26222	10	26	such	such	ADJ
ajst-26222	10	27	as	as	ADP
ajst-26222	10	28	transportation	transportation	NOUN
ajst-26222	10	29	,	,	PUNCT
ajst-26222	10	30	social	social	ADJ
ajst-26222	10	31	communication	communication	NOUN
ajst-26222	10	32	,	,	PUNCT
ajst-26222	10	33	and	and	CCONJ
ajst-26222	10	34	emergency	emergency	NOUN
ajst-26222	10	35	assistance[4].users	assistance[4].user	NOUN
ajst-26222	10	36	submit	submit	VERB
ajst-26222	10	37	their	their	PRON
ajst-26222	10	38	geographic	geographic	ADJ
ajst-26222	10	39	location	location	NOUN
ajst-26222	10	40	and	and	CCONJ
ajst-26222	10	41	query	query	NOUN
ajst-26222	10	42	information	information	NOUN
ajst-26222	10	43	to	to	ADP
ajst-26222	10	44	location	location	NOUN
ajst-26222	10	45	service	service	NOUN
ajst-26222	10	46	providers	provider	NOUN
ajst-26222	10	47	to	to	PART
ajst-26222	10	48	obtain	obtain	VERB
ajst-26222	10	49	some	some	DET
ajst-26222	10	50	value	value	NOUN
ajst-26222	10	51	-	-	PUNCT
ajst-26222	10	52	added	add	VERB
ajst-26222	10	53	services	service	NOUN
ajst-26222	10	54	including	include	VERB
ajst-26222	10	55	points	point	NOUN
ajst-26222	10	56	of	of	ADP
ajst-26222	10	57	interest	interest	NOUN
ajst-26222	10	58	[	[	X
ajst-26222	10	59	5].although	5].although	NUM
ajst-26222	10	60	lbs	lbs	NOUN
ajst-26222	10	61	has	have	AUX
ajst-26222	10	62	brought	bring	VERB
ajst-26222	10	63	great	great	ADJ
ajst-26222	10	64	convenience	convenience	NOUN
ajst-26222	10	65	to	to	ADP
ajst-26222	10	66	users	user	NOUN
ajst-26222	10	67	,	,	PUNCT
ajst-26222	10	68	it	it	PRON
ajst-26222	10	69	has	have	AUX
ajst-26222	10	70	also	also	ADV
ajst-26222	10	71	brought	bring	VERB
ajst-26222	10	72	serious	serious	ADJ
ajst-26222	10	73	location	location	NOUN
ajst-26222	10	74	privacy	privacy	NOUN
ajst-26222	10	75	leakage	leakage	NOUN
ajst-26222	10	76	problems	problem	NOUN
ajst-26222	10	77	to	to	ADP
ajst-26222	10	78	users	user	NOUN
ajst-26222	10	79	.	.	PUNCT
ajst-26222	11	1	location	location	NOUN
ajst-26222	11	2	service	service	NOUN
ajst-26222	11	3	providers	provider	NOUN
ajst-26222	11	4	collect	collect	VERB
ajst-26222	11	5	users	user	NOUN
ajst-26222	11	6	'	'	PART
ajst-26222	11	7	location	location	NOUN
ajst-26222	11	8	information	information	NOUN
ajst-26222	11	9	and	and	CCONJ
ajst-26222	11	10	may	may	AUX
ajst-26222	11	11	sell	sell	VERB
ajst-26222	11	12	this	this	DET
ajst-26222	11	13	location	location	NOUN
ajst-26222	11	14	information	information	NOUN
ajst-26222	11	15	to	to	ADP
ajst-26222	11	16	third	third	ADJ
ajst-26222	11	17	parties	party	NOUN
ajst-26222	11	18	to	to	PART
ajst-26222	11	19	gain	gain	VERB
ajst-26222	11	20	benefits	benefit	NOUN
ajst-26222	11	21	,	,	PUNCT
ajst-26222	11	22	or	or	CCONJ
ajst-26222	11	23	even	even	ADV
ajst-26222	11	24	leak	leak	VERB
ajst-26222	11	25	the	the	DET
ajst-26222	11	26	location	location	NOUN
ajst-26222	11	27	information	information	NOUN
ajst-26222	11	28	to	to	ADP
ajst-26222	11	29	malicious	malicious	ADJ
ajst-26222	11	30	attackers	attacker	NOUN
ajst-26222	11	31	.	.	PUNCT
ajst-26222	12	1	malicious	malicious	ADJ
ajst-26222	12	2	attackers	attacker	NOUN
ajst-26222	12	3	use	use	VERB
ajst-26222	12	4	this	this	DET
ajst-26222	12	5	location	location	NOUN
ajst-26222	12	6	information	information	NOUN
ajst-26222	12	7	to	to	PART
ajst-26222	12	8	push	push	VERB
ajst-26222	12	9	ads	ad	NOUN
ajst-26222	12	10	or	or	CCONJ
ajst-26222	12	11	send	send	VERB
ajst-26222	12	12	spam	spam	NOUN
ajst-26222	12	13	messages	message	NOUN
ajst-26222	12	14	to	to	ADP
ajst-26222	12	15	users	user	NOUN
ajst-26222	12	16	,	,	PUNCT
ajst-26222	12	17	or	or	CCONJ
ajst-26222	12	18	even	even	ADV
ajst-26222	12	19	infer	infer	VERB
ajst-26222	12	20	sensitive	sensitive	ADJ
ajst-26222	12	21	information	information	NOUN
ajst-26222	12	22	such	such	ADJ
ajst-26222	12	23	as	as	ADP
ajst-26222	12	24	users	user	NOUN
ajst-26222	12	25	'	'	PART
ajst-26222	12	26	residence	residence	NOUN
ajst-26222	12	27	address	address	NOUN
ajst-26222	12	28	and	and	CCONJ
ajst-26222	12	29	workplace	workplace	NOUN
ajst-26222	12	30	,	,	PUNCT
ajst-26222	12	31	which	which	PRON
ajst-26222	12	32	seriously	seriously	ADV
ajst-26222	12	33	violates	violate	VERB
ajst-26222	12	34	users	user	NOUN
ajst-26222	12	35	'	'	PART
ajst-26222	12	36	privacy	privacy	NOUN
ajst-26222	13	1	[	[	X
ajst-26222	13	2	6	6	NUM
ajst-26222	13	3	-	-	SYM
ajst-26222	13	4	7	7	NUM
ajst-26222	13	5	]	]	PUNCT
ajst-26222	13	6	.	.	PUNCT
ajst-26222	14	1	therefore	therefore	ADV
ajst-26222	14	2	,	,	PUNCT
ajst-26222	14	3	how	how	SCONJ
ajst-26222	14	4	to	to	PART
ajst-26222	14	5	protect	protect	VERB
ajst-26222	14	6	users	user	NOUN
ajst-26222	14	7	'	'	PART
ajst-26222	14	8	trajectory	trajectory	NOUN
ajst-26222	14	9	privacy	privacy	NOUN
ajst-26222	14	10	in	in	ADP
ajst-26222	14	11	location	location	NOUN
ajst-26222	14	12	services	service	NOUN
ajst-26222	14	13	is	be	AUX
ajst-26222	14	14	extremely	extremely	ADV
ajst-26222	14	15	important	important	ADJ
ajst-26222	14	16	.	.	PUNCT
ajst-26222	15	1	with	with	ADP
ajst-26222	15	2	the	the	DET
ajst-26222	15	3	rapid	rapid	ADJ
ajst-26222	15	4	development	development	NOUN
ajst-26222	15	5	of	of	ADP
ajst-26222	15	6	location	location	NOUN
ajst-26222	15	7	privacy	privacy	NOUN
ajst-26222	15	8	protection	protection	NOUN
ajst-26222	15	9	technology	technology	NOUN
ajst-26222	15	10	,	,	PUNCT
ajst-26222	15	11	trajectory	trajectory	NOUN
ajst-26222	15	12	privacy	privacy	NOUN
ajst-26222	15	13	protection	protection	NOUN
ajst-26222	15	14	technology	technology	NOUN
ajst-26222	15	15	has	have	AUX
ajst-26222	15	16	attracted	attract	VERB
ajst-26222	15	17	extensive	extensive	ADJ
ajst-26222	15	18	research	research	NOUN
ajst-26222	15	19	attention	attention	NOUN
ajst-26222	15	20	from	from	ADP
ajst-26222	15	21	many	many	ADJ
ajst-26222	15	22	domestic	domestic	ADJ
ajst-26222	15	23	and	and	CCONJ
ajst-26222	15	24	foreign	foreign	ADJ
ajst-26222	15	25	scholars	scholar	NOUN
ajst-26222	15	26	.	.	PUNCT
ajst-26222	16	1	based	base	VERB
ajst-26222	16	2	on	on	ADP
ajst-26222	16	3	anonymous	anonymous	ADJ
ajst-26222	16	4	generalization	generalization	NOUN
ajst-26222	16	5	is	be	AUX
ajst-26222	16	6	an	an	DET
ajst-26222	16	7	important	important	ADJ
ajst-26222	16	8	approach	approach	NOUN
ajst-26222	16	9	to	to	ADP
ajst-26222	16	10	trajectory	trajectory	NOUN
ajst-26222	16	11	privacy	privacy	NOUN
ajst-26222	16	12	protection	protection	NOUN
ajst-26222	16	13	.	.	PUNCT
ajst-26222	17	1	li	li	PROPN
ajst-26222	17	2	et	et	PROPN
ajst-26222	17	3	al	al	PROPN
ajst-26222	17	4	.	.	PUNCT
ajst-26222	18	1	[	[	X
ajst-26222	18	2	8	8	NUM
ajst-26222	18	3	]	]	PUNCT
ajst-26222	18	4	proposed	propose	VERB
ajst-26222	18	5	fake	fake	ADJ
ajst-26222	18	6	trajectories	trajectory	NOUN
ajst-26222	18	7	are	be	AUX
ajst-26222	18	8	constructed	construct	VERB
ajst-26222	18	9	by	by	ADP
ajst-26222	18	10	fully	fully	ADV
ajst-26222	18	11	considering	consider	VERB
ajst-26222	18	12	information	information	NOUN
ajst-26222	18	13	such	such	ADJ
ajst-26222	18	14	as	as	ADP
ajst-26222	18	15	background	background	NOUN
ajst-26222	18	16	information	information	NOUN
ajst-26222	18	17	,	,	PUNCT
ajst-26222	18	18	user	user	NOUN
ajst-26222	18	19	action	action	NOUN
ajst-26222	18	20	patterns	pattern	NOUN
ajst-26222	18	21	and	and	CCONJ
ajst-26222	18	22	trajectory	trajectory	NOUN
ajst-26222	18	23	similarity	similarity	NOUN
ajst-26222	18	24	to	to	PART
ajst-26222	18	25	improve	improve	VERB
ajst-26222	18	26	the	the	DET
ajst-26222	18	27	confusion	confusion	NOUN
ajst-26222	18	28	of	of	ADP
ajst-26222	18	29	fake	fake	ADJ
ajst-26222	18	30	trajectories	trajectory	NOUN
ajst-26222	18	31	and	and	CCONJ
ajst-26222	18	32	make	make	VERB
ajst-26222	18	33	it	it	PRON
ajst-26222	18	34	difficult	difficult	ADJ
ajst-26222	18	35	for	for	SCONJ
ajst-26222	18	36	attackers	attacker	NOUN
ajst-26222	18	37	to	to	PART
ajst-26222	18	38	distinguish	distinguish	VERB
ajst-26222	18	39	real	real	ADJ
ajst-26222	18	40	trajectories	trajectory	NOUN
ajst-26222	18	41	from	from	ADP
ajst-26222	18	42	fake	fake	ADJ
ajst-26222	18	43	ones	one	NOUN
ajst-26222	18	44	,	,	PUNCT
ajst-26222	18	45	but	but	CCONJ
ajst-26222	18	46	the	the	DET
ajst-26222	18	47	communication	communication	NOUN
ajst-26222	18	48	between	between	ADP
ajst-26222	18	49	the	the	DET
ajst-26222	18	50	client	client	NOUN
ajst-26222	18	51	and	and	CCONJ
ajst-26222	18	52	the	the	DET
ajst-26222	18	53	server	server	NOUN
ajst-26222	18	54	may	may	AUX
ajst-26222	18	55	be	be	AUX
ajst-26222	18	56	eavesdropped	eavesdrop	VERB
ajst-26222	18	57	by	by	ADP
ajst-26222	18	58	the	the	DET
ajst-26222	18	59	attacker	attacker	PROPN
ajst-26222	18	60	.	.	PUNCT
ajst-26222	19	1	tian	tian	PROPN
ajst-26222	19	2	et	et	PROPN
ajst-26222	19	3	al	al	PROPN
ajst-26222	19	4	.	.	PUNCT
ajst-26222	20	1	[	[	X
ajst-26222	20	2	9	9	NUM
ajst-26222	20	3	]	]	PUNCT
ajst-26222	20	4	proposed	propose	VERB
ajst-26222	20	5	an	an	DET
ajst-26222	20	6	arctree	arctree	NOUN
ajst-26222	20	7	(	(	PUNCT
ajst-26222	20	8	tprt)-based	tprt)-base	VERB
ajst-26222	20	9	scheme	scheme	NOUN
ajst-26222	20	10	for	for	ADP
ajst-26222	20	11	storing	store	VERB
ajst-26222	20	12	and	and	CCONJ
ajst-26222	20	13	publishing	publish	VERB
ajst-26222	20	14	differential	differential	NOUN
ajst-26222	20	15	privacy	privacy	NOUN
ajst-26222	20	16	trajectory	trajectory	NOUN
ajst-26222	20	17	data	datum	NOUN
ajst-26222	20	18	is	be	AUX
ajst-26222	20	19	proposed	propose	VERB
ajst-26222	20	20	.	.	PUNCT
ajst-26222	21	1	to	to	PART
ajst-26222	21	2	preserve	preserve	VERB
ajst-26222	21	3	privacy	privacy	NOUN
ajst-26222	21	4	,	,	PUNCT
ajst-26222	21	5	laplacian	laplacian	ADJ
ajst-26222	21	6	noise	noise	NOUN
ajst-26222	21	7	is	be	AUX
ajst-26222	21	8	added	add	VERB
ajst-26222	21	9	to	to	ADP
ajst-26222	21	10	the	the	DET
ajst-26222	21	11	sensitive	sensitive	ADJ
ajst-26222	21	12	counts	count	NOUN
ajst-26222	21	13	of	of	ADP
ajst-26222	21	14	the	the	DET
ajst-26222	21	15	radius	radius	NOUN
ajst-26222	21	16	tree	tree	NOUN
ajst-26222	21	17	and	and	CCONJ
ajst-26222	21	18	is	be	AUX
ajst-26222	21	19	constrained	constrain	VERB
ajst-26222	21	20	by	by	ADP
ajst-26222	21	21	markov	markov	NOUN
ajst-26222	21	22	chains	chain	NOUN
ajst-26222	21	23	and	and	CCONJ
ajst-26222	21	24	privacy	privacy	NOUN
ajst-26222	21	25	degrees	degree	NOUN
ajst-26222	21	26	.	.	PUNCT
ajst-26222	22	1	many	many	ADJ
ajst-26222	22	2	differential	differential	ADJ
ajst-26222	22	3	privacy	privacy	NOUN
ajst-26222	22	4	based	base	VERB
ajst-26222	22	5	trajectory	trajectory	NOUN
ajst-26222	22	6	synthesis	synthesis	NOUN
ajst-26222	22	7	methods	method	NOUN
ajst-26222	22	8	to	to	PART
ajst-26222	22	9	publish	publish	VERB
ajst-26222	22	10	trajectory	trajectory	NOUN
ajst-26222	22	11	data	datum	NOUN
ajst-26222	22	12	privately	privately	ADV
ajst-26222	22	13	,	,	PUNCT
ajst-26222	22	14	but	but	CCONJ
ajst-26222	22	15	these	these	DET
ajst-26222	22	16	methods	method	NOUN
ajst-26222	22	17	do	do	AUX
ajst-26222	22	18	not	not	PART
ajst-26222	22	19	adequately	adequately	ADV
ajst-26222	22	20	preserve	preserve	VERB
ajst-26222	22	21	the	the	DET
ajst-26222	22	22	semantic	semantic	ADJ
ajst-26222	22	23	information	information	NOUN
ajst-26222	22	24	of	of	ADP
ajst-26222	22	25	the	the	DET
ajst-26222	22	26	trajectories	trajectory	NOUN
ajst-26222	22	27	.	.	PUNCT
ajst-26222	23	1	du	du	PROPN
ajst-26222	23	2	et	et	PROPN
ajst-26222	23	3	al	al	PROPN
ajst-26222	23	4	.	.	PUNCT
ajst-26222	24	1	[	[	X
ajst-26222	24	2	10	10	NUM
ajst-26222	24	3	]	]	PUNCT
ajst-26222	24	4	proposed	propose	VERB
ajst-26222	24	5	a	a	DET
ajst-26222	24	6	semantic	semantic	ADJ
ajst-26222	24	7	preservation	preservation	NOUN
ajst-26222	24	8	scheme	scheme	NOUN
ajst-26222	24	9	is	be	AUX
ajst-26222	24	10	proposed	propose	VERB
ajst-26222	24	11	for	for	ADP
ajst-26222	24	12	synthesizing	synthesize	VERB
ajst-26222	24	13	the	the	DET
ajst-26222	24	14	trajectory	trajectory	NOUN
ajst-26222	24	15	data	datum	NOUN
ajst-26222	24	16	for	for	ADP
ajst-26222	24	17	publishing	publish	VERB
ajst-26222	24	18	under	under	ADP
ajst-26222	24	19	differential	differential	NOUN
ajst-26222	24	20	privacy	privacy	NOUN
ajst-26222	24	21	for	for	ADP
ajst-26222	24	22	this	this	DET
ajst-26222	24	23	case	case	NOUN
ajst-26222	24	24	.	.	PUNCT
ajst-26222	25	1	many	many	ADJ
ajst-26222	25	2	existing	exist	VERB
ajst-26222	25	3	privacy	privacy	NOUN
ajst-26222	25	4	-	-	PUNCT
ajst-26222	25	5	preserving	preserve	VERB
ajst-26222	25	6	publishing	publishing	NOUN
ajst-26222	25	7	methods	method	NOUN
ajst-26222	25	8	for	for	ADP
ajst-26222	25	9	trajectory	trajectory	NOUN
ajst-26222	25	10	data	datum	NOUN
ajst-26222	25	11	only	only	ADV
ajst-26222	25	12	provide	provide	VERB
ajst-26222	25	13	the	the	DET
ajst-26222	25	14	same	same	ADJ
ajst-26222	25	15	level	level	NOUN
ajst-26222	25	16	of	of	ADP
ajst-26222	25	17	privacy	privacy	NOUN
ajst-26222	25	18	protection	protection	NOUN
ajst-26222	25	19	for	for	ADP
ajst-26222	25	20	all	all	DET
ajst-26222	25	21	moving	move	VERB
ajst-26222	25	22	objects	object	NOUN
ajst-26222	25	23	,	,	PUNCT
ajst-26222	25	24	while	while	SCONJ
ajst-26222	25	25	different	different	ADJ
ajst-26222	25	26	moving	moving	NOUN
ajst-26222	25	27	objects	object	NOUN
ajst-26222	25	28	may	may	AUX
ajst-26222	25	29	require	require	VERB
ajst-26222	25	30	different	different	ADJ
ajst-26222	25	31	levels	level	NOUN
ajst-26222	25	32	of	of	ADP
ajst-26222	25	33	privacy	privacy	NOUN
ajst-26222	25	34	protection	protection	NOUN
ajst-26222	25	35	.	.	PUNCT
ajst-26222	26	1	chen	chen	PROPN
ajst-26222	26	2	et	et	PROPN
ajst-26222	26	3	al	al	PROPN
ajst-26222	26	4	.	.	PUNCT
ajst-26222	27	1	[	[	X
ajst-26222	27	2	11	11	NUM
ajst-26222	27	3	]	]	PUNCT
ajst-26222	27	4	aiming	aim	VERB
ajst-26222	27	5	at	at	ADP
ajst-26222	27	6	the	the	DET
ajst-26222	27	7	shortcomings	shortcoming	NOUN
ajst-26222	27	8	of	of	ADP
ajst-26222	27	9	the	the	DET
ajst-26222	27	10	traditional	traditional	ADJ
ajst-26222	27	11	k	k	ADJ
ajst-26222	27	12	-	-	PUNCT
ajst-26222	27	13	anonymisation	anonymisation	NOUN
ajst-26222	27	14	technique	technique	NOUN
ajst-26222	27	15	in	in	ADP
ajst-26222	27	16	which	which	PRON
ajst-26222	27	17	the	the	DET
ajst-26222	27	18	value	value	NOUN
ajst-26222	27	19	of	of	ADP
ajst-26222	27	20	δ	δ	PROPN
ajst-26222	27	21	is	be	AUX
ajst-26222	27	22	fixed	fix	VERB
ajst-26222	27	23	and	and	CCONJ
ajst-26222	27	24	unchanged	unchanged	ADJ
ajst-26222	27	25	and	and	CCONJ
ajst-26222	27	26	no	no	DET
ajst-26222	27	27	road	road	NOUN
ajst-26222	27	28	network	network	NOUN
ajst-26222	27	29	constraints	constraint	NOUN
ajst-26222	27	30	are	be	AUX
ajst-26222	27	31	involved	involve	VERB
ajst-26222	27	32	,	,	PUNCT
ajst-26222	27	33	the	the	DET
ajst-26222	27	34	privacy	privacy	NOUN
ajst-26222	27	35	preservation	preservation	NOUN
ajst-26222	27	36	effect	effect	NOUN
ajst-26222	27	37	is	be	AUX
ajst-26222	27	38	improved	improve	VERB
ajst-26222	27	39	by	by	ADP
ajst-26222	27	40	setting	set	VERB
ajst-26222	27	41	different	different	ADJ
ajst-26222	27	42	thresholdsδat	thresholdsδat	NOUN
ajst-26222	27	43	different	different	ADJ
ajst-26222	27	44	road	road	NOUN
ajst-26222	27	45	segments	segment	NOUN
ajst-26222	27	46	to	to	PART
ajst-26222	27	47	generate	generate	VERB
ajst-26222	27	48	the	the	DET
ajst-26222	27	49	pseudo	pseudo	NOUN
ajst-26222	27	50	-	-	ADJ
ajst-26222	27	51	trajectory	trajectory	ADJ
ajst-26222	27	52	dataset	dataset	NOUN
ajst-26222	27	53	,	,	PUNCT
ajst-26222	27	54	but	but	CCONJ
ajst-26222	27	55	the	the	DET
ajst-26222	27	56	efficiency	efficiency	NOUN
ajst-26222	27	57	is	be	AUX
ajst-26222	27	58	low	low	ADJ
ajst-26222	27	59	.	.	PUNCT
ajst-26222	28	1	traditional	traditional	ADJ
ajst-26222	28	2	approaches	approach	NOUN
ajst-26222	28	3	based	base	VERB
ajst-26222	28	4	on	on	ADP
ajst-26222	28	5	anonymity	anonymity	NOUN
ajst-26222	28	6	models	model	NOUN
ajst-26222	28	7	,	,	PUNCT
ajst-26222	28	8	on	on	ADP
ajst-26222	28	9	the	the	DET
ajst-26222	28	10	other	other	ADJ
ajst-26222	28	11	hand	hand	NOUN
ajst-26222	28	12	,	,	PUNCT
ajst-26222	28	13	are	be	AUX
ajst-26222	28	14	difficult	difficult	ADJ
ajst-26222	28	15	to	to	PART
ajst-26222	28	16	protect	protect	VERB
ajst-26222	28	17	against	against	ADP
ajst-26222	28	18	attackers	attacker	NOUN
ajst-26222	28	19	that	that	PRON
ajst-26222	28	20	have	have	VERB
ajst-26222	28	21	a	a	DET
ajst-26222	28	22	lot	lot	NOUN
ajst-26222	28	23	of	of	ADP
ajst-26222	28	24	information	information	NOUN
ajst-26222	28	25	.	.	PUNCT
ajst-26222	29	1	differential	differential	PROPN
ajst-26222	29	2	privacy	privacy	NOUN
ajst-26222	29	3	protection	protection	NOUN
ajst-26222	29	4	approaches	approach	NOUN
ajst-26222	29	5	have	have	AUX
ajst-26222	29	6	become	become	VERB
ajst-26222	29	7	more	more	ADV
ajst-26222	29	8	popular	popular	ADJ
ajst-26222	29	9	in	in	ADP
ajst-26222	29	10	recent	recent	ADJ
ajst-26222	29	11	years	year	NOUN
ajst-26222	29	12	for	for	ADP
ajst-26222	29	13	securing	secure	VERB
ajst-26222	29	14	the	the	DET
ajst-26222	29	15	privacy	privacy	NOUN
ajst-26222	29	16	of	of	ADP
ajst-26222	29	17	moving	move	VERB
ajst-26222	29	18	object	object	NOUN
ajst-26222	29	19	trajectories	trajectory	NOUN
ajst-26222	29	20	.	.	PUNCT
ajst-26222	30	1	zhao	zhao	PROPN
ajst-26222	30	2	et	et	PROPN
ajst-26222	30	3	al	al	PROPN
ajst-26222	30	4	.	.	PUNCT
ajst-26222	31	1	[	[	X
ajst-26222	31	2	12	12	NUM
ajst-26222	31	3	]	]	PUNCT
ajst-26222	31	4	proposed	propose	VERB
ajst-26222	31	5	a	a	DET
ajst-26222	31	6	trajectory	trajectory	NOUN
ajst-26222	31	7	privacy	privacy	NOUN
ajst-26222	31	8	protection	protection	NOUN
ajst-26222	31	9	method	method	NOUN
ajst-26222	31	10	for	for	ADP
ajst-26222	31	11	differential	differential	ADJ
ajst-26222	31	12	privacy	privacy	NOUN
ajst-26222	31	13	clustering	clustering	NOUN
ajst-26222	31	14	,	,	PUNCT
ajst-26222	31	15	which	which	PRON
ajst-26222	31	16	added	add	VERB
ajst-26222	31	17	constrained	constrain	VERB
ajst-26222	31	18	laplacian	laplacian	ADJ
ajst-26222	31	19	noise	noise	NOUN
ajst-26222	31	20	to	to	ADP
ajst-26222	31	21	the	the	DET
ajst-26222	31	22	trajectory	trajectory	NOUN
ajst-26222	31	23	position	position	NOUN
ajst-26222	31	24	in	in	ADP
ajst-26222	31	25	the	the	DET
ajst-26222	31	26	cluster	cluster	NOUN
ajst-26222	31	27	to	to	PART
ajst-26222	31	28	avoid	avoid	VERB
ajst-26222	31	29	excessive	excessive	ADJ
ajst-26222	31	30	noise	noise	NOUN
ajst-26222	31	31	affecting	affect	VERB
ajst-26222	31	32	the	the	DET
ajst-26222	31	33	clustering	clustering	ADJ
ajst-26222	31	34	effect	effect	NOUN
ajst-26222	31	35	and	and	CCONJ
ajst-26222	31	36	ensure	ensure	VERB
ajst-26222	31	37	the	the	DET
ajst-26222	31	38	cluster	cluster	NOUN
ajst-26222	31	39	analysis	analysis	NOUN
ajst-26222	31	40	data	datum	NOUN
ajst-26222	31	41	availability	availability	NOUN
ajst-26222	31	42	.	.	PUNCT
ajst-26222	32	1	this	this	DET
ajst-26222	32	2	method	method	NOUN
ajst-26222	32	3	improves	improve	VERB
ajst-26222	32	4	data	data	NOUN
ajst-26222	32	5	availability	availability	NOUN
ajst-26222	32	6	but	but	CCONJ
ajst-26222	32	7	reduces	reduce	VERB
ajst-26222	32	8	privacy	privacy	NOUN
ajst-26222	32	9	.	.	PUNCT
ajst-26222	33	1	chen	chen	PROPN
ajst-26222	33	2	et	et	PROPN
ajst-26222	33	3	al	al	PROPN
ajst-26222	33	4	.	.	PUNCT
ajst-26222	34	1	[	[	X
ajst-26222	34	2	13	13	NUM
ajst-26222	34	3	]	]	PUNCT
ajst-26222	34	4	proposed	propose	VERB
ajst-26222	34	5	a	a	DET
ajst-26222	34	6	dynamic	dynamic	ADJ
ajst-26222	34	7	trajectory	trajectory	NOUN
ajst-26222	34	8	privacy	privacy	NOUN
ajst-26222	34	9	protection	protection	PROPN
ajst-26222	34	10	differential	differential	PROPN
ajst-26222	34	11	privacy	privacy	NOUN
ajst-26222	34	12	scheme	scheme	NOUN
ajst-26222	34	13	based	base	VERB
ajst-26222	34	14	on	on	ADP
ajst-26222	34	15	a	a	DET
ajst-26222	34	16	recurrent	recurrent	ADJ
ajst-26222	34	17	neural	neural	ADJ
ajst-26222	34	18	network	network	NOUN
ajst-26222	34	19	(	(	PUNCT
ajst-26222	34	20	rnndp	rnndp	PROPN
ajst-26222	34	21	)	)	PUNCT
ajst-26222	34	22	,	,	PUNCT
ajst-26222	34	23	which	which	PRON
ajst-26222	34	24	introduced	introduce	VERB
ajst-26222	34	25	a	a	DET
ajst-26222	34	26	recurrent	recurrent	ADJ
ajst-26222	34	27	neural	neural	ADJ
ajst-26222	34	28	network	network	NOUN
ajst-26222	34	29	model	model	NOUN
ajst-26222	34	30	to	to	PART
ajst-26222	34	31	effectively	effectively	ADV
ajst-26222	34	32	process	process	VERB
ajst-26222	34	33	real	real	ADJ
ajst-26222	34	34	-	-	PUNCT
ajst-26222	34	35	time	time	NOUN
ajst-26222	34	36	data	datum	NOUN
ajst-26222	34	37	,	,	PUNCT
ajst-26222	34	38	but	but	CCONJ
ajst-26222	34	39	the	the	DET
ajst-26222	34	40	efficiency	efficiency	NOUN
ajst-26222	34	41	was	be	AUX
ajst-26222	34	42	reduced	reduce	VERB
ajst-26222	34	43	.	.	PUNCT
ajst-26222	35	1	ou	ou	INTJ
ajst-26222	35	2	et	et	PROPN
ajst-26222	35	3	al	al	PROPN
ajst-26222	35	4	.	.	PUNCT
ajst-26222	36	1	[	[	X
ajst-26222	36	2	14	14	NUM
ajst-26222	36	3	]	]	PUNCT
ajst-26222	36	4	considered	consider	VERB
ajst-26222	36	5	that	that	SCONJ
ajst-26222	36	6	the	the	DET
ajst-26222	36	7	correlation	correlation	NOUN
ajst-26222	36	8	between	between	ADP
ajst-26222	36	9	the	the	DET
ajst-26222	36	10	trajectories	trajectory	NOUN
ajst-26222	36	11	of	of	ADP
ajst-26222	36	12	two	two	NUM
ajst-26222	36	13	users	user	NOUN
ajst-26222	36	14	may	may	AUX
ajst-26222	36	15	reveal	reveal	VERB
ajst-26222	36	16	sensitive	sensitive	ADJ
ajst-26222	36	17	social	social	ADJ
ajst-26222	36	18	relationships	relationship	NOUN
ajst-26222	36	19	,	,	PUNCT
ajst-26222	36	20	and	and	CCONJ
ajst-26222	36	21	proposed	propose	VERB
ajst-26222	36	22	an	an	DET
ajst-26222	36	23	n	n	CCONJ
ajst-26222	36	24	-	-	PUNCT
ajst-26222	36	25	body	body	NOUN
ajst-26222	36	26	laplacian	laplacian	ADJ
ajst-26222	36	27	framework	framework	NOUN
ajst-26222	36	28	that	that	PRON
ajst-26222	36	29	satisfies	satisfy	VERB
ajst-26222	36	30	-	-	PUNCT
ajst-26222	36	31	differential	differential	NOUN
ajst-26222	36	32	privacy	privacy	NOUN
ajst-26222	36	33	to	to	PART
ajst-26222	36	34	prevent	prevent	VERB
ajst-26222	36	35	social	social	ADJ
ajst-26222	36	36	relationship	relationship	NOUN
ajst-26222	36	37	reasoning	reasoning	NOUN
ajst-26222	36	38	attacks	attack	NOUN
ajst-26222	36	39	.	.	PUNCT
ajst-26222	37	1	the	the	DET
ajst-26222	37	2	scheme	scheme	NOUN
ajst-26222	37	3	has	have	VERB
ajst-26222	37	4	good	good	ADJ
ajst-26222	37	5	privacy	privacy	NOUN
ajst-26222	37	6	and	and	CCONJ
ajst-26222	37	7	data	datum	NOUN
ajst-26222	37	8	222	222	NUM
ajst-26222	37	9	utility	utility	NOUN
ajst-26222	37	10	but	but	CCONJ
ajst-26222	37	11	does	do	AUX
ajst-26222	37	12	not	not	PART
ajst-26222	37	13	consider	consider	VERB
ajst-26222	37	14	the	the	DET
ajst-26222	37	15	temporal	temporal	ADJ
ajst-26222	37	16	correlations	correlation	NOUN
ajst-26222	37	17	of	of	ADP
ajst-26222	37	18	trajectory	trajectory	NOUN
ajst-26222	37	19	.	.	PUNCT
ajst-26222	38	1	to	to	PART
ajst-26222	38	2	address	address	VERB
ajst-26222	38	3	the	the	DET
ajst-26222	38	4	problem	problem	NOUN
ajst-26222	38	5	that	that	SCONJ
ajst-26222	38	6	the	the	DET
ajst-26222	38	7	background	background	NOUN
ajst-26222	38	8	knowledge	knowledge	NOUN
ajst-26222	38	9	of	of	ADP
ajst-26222	38	10	attackers	attacker	NOUN
ajst-26222	38	11	can	can	AUX
ajst-26222	38	12	not	not	PART
ajst-26222	38	13	be	be	AUX
ajst-26222	38	14	effectively	effectively	ADV
ajst-26222	38	15	estimated	estimate	VERB
ajst-26222	38	16	in	in	ADP
ajst-26222	38	17	the	the	DET
ajst-26222	38	18	current	current	ADJ
ajst-26222	38	19	anonymous	anonymous	ADJ
ajst-26222	38	20	trajectory	trajectory	PROPN
ajst-26222	38	21	privacy	privacy	NOUN
ajst-26222	38	22	protection	protection	NOUN
ajst-26222	38	23	,	,	PUNCT
ajst-26222	38	24	we	we	PRON
ajst-26222	38	25	propose	propose	VERB
ajst-26222	38	26	a	a	DET
ajst-26222	38	27	trajectory	trajectory	NOUN
ajst-26222	38	28	privacy	privacy	NOUN
ajst-26222	38	29	protection	protection	NOUN
ajst-26222	38	30	scheme	scheme	NOUN
ajst-26222	38	31	that	that	PRON
ajst-26222	38	32	combines	combine	VERB
ajst-26222	38	33	anonymous	anonymous	ADJ
ajst-26222	38	34	and	and	CCONJ
ajst-26222	38	35	differential	differential	ADJ
ajst-26222	38	36	privacy	privacy	NOUN
ajst-26222	38	37	techniques	technique	NOUN
ajst-26222	38	38	.	.	PUNCT
ajst-26222	39	1	in	in	ADP
ajst-26222	39	2	the	the	DET
ajst-26222	39	3	scheme	scheme	NOUN
ajst-26222	39	4	,	,	PUNCT
ajst-26222	39	5	the	the	DET
ajst-26222	39	6	differential	differential	ADJ
ajst-26222	39	7	privacy	privacy	NOUN
ajst-26222	39	8	technique	technique	NOUN
ajst-26222	39	9	is	be	AUX
ajst-26222	39	10	used	use	VERB
ajst-26222	39	11	to	to	PART
ajst-26222	39	12	add	add	VERB
ajst-26222	39	13	laplacian	laplacian	ADJ
ajst-26222	39	14	noise	noise	NOUN
ajst-26222	39	15	to	to	ADP
ajst-26222	39	16	the	the	DET
ajst-26222	39	17	user	user	NOUN
ajst-26222	39	18	's	's	PART
ajst-26222	39	19	trajectory	trajectory	NOUN
ajst-26222	39	20	several	several	ADJ
ajst-26222	39	21	times	time	NOUN
ajst-26222	39	22	to	to	PART
ajst-26222	39	23	generate	generate	VERB
ajst-26222	39	24	noisy	noisy	ADJ
ajst-26222	39	25	trajectories	trajectory	NOUN
ajst-26222	39	26	,	,	PUNCT
ajst-26222	39	27	and	and	CCONJ
ajst-26222	39	28	select	select	VERB
ajst-26222	39	29	multiple	multiple	ADJ
ajst-26222	39	30	noisy	noisy	ADJ
ajst-26222	39	31	users	user	NOUN
ajst-26222	39	32	similar	similar	ADJ
ajst-26222	39	33	to	to	ADP
ajst-26222	39	34	the	the	DET
ajst-26222	39	35	user	user	NOUN
ajst-26222	39	36	's	's	PART
ajst-26222	39	37	trajectory	trajectory	NOUN
ajst-26222	39	38	according	accord	VERB
ajst-26222	39	39	to	to	ADP
ajst-26222	39	40	the	the	DET
ajst-26222	39	41	trajectory	trajectory	NOUN
ajst-26222	39	42	similarity	similarity	NOUN
ajst-26222	39	43	,	,	PUNCT
ajst-26222	39	44	set	set	VERB
ajst-26222	39	45	them	they	PRON
ajst-26222	39	46	and	and	CCONJ
ajst-26222	39	47	the	the	DET
ajst-26222	39	48	real	real	ADJ
ajst-26222	39	49	user	user	NOUN
ajst-26222	39	50	as	as	ADP
ajst-26222	39	51	anonymous	anonymous	ADJ
ajst-26222	39	52	user	user	NOUN
ajst-26222	39	53	groups	group	NOUN
ajst-26222	39	54	,	,	PUNCT
ajst-26222	39	55	and	and	CCONJ
ajst-26222	39	56	use	use	VERB
ajst-26222	39	57	the	the	DET
ajst-26222	39	58	anonymous	anonymous	ADJ
ajst-26222	39	59	user	user	NOUN
ajst-26222	39	60	groups	group	NOUN
ajst-26222	39	61	to	to	PART
ajst-26222	39	62	request	request	VERB
ajst-26222	39	63	lbs	lbs	NOUN
ajst-26222	39	64	services	service	NOUN
ajst-26222	39	65	,	,	PUNCT
ajst-26222	39	66	so	so	SCONJ
ajst-26222	39	67	that	that	SCONJ
ajst-26222	39	68	the	the	DET
ajst-26222	39	69	attacker	attacker	NOUN
ajst-26222	39	70	can	can	AUX
ajst-26222	39	71	not	not	PART
ajst-26222	39	72	distinguish	distinguish	VERB
ajst-26222	39	73	the	the	DET
ajst-26222	39	74	real	real	ADJ
ajst-26222	39	75	user	user	NOUN
ajst-26222	39	76	from	from	ADP
ajst-26222	39	77	the	the	DET
ajst-26222	39	78	noisy	noisy	ADJ
ajst-26222	39	79	user	user	NOUN
ajst-26222	39	80	,	,	PUNCT
ajst-26222	39	81	thus	thus	ADV
ajst-26222	39	82	realizing	realize	VERB
ajst-26222	39	83	the	the	DET
ajst-26222	39	84	trajectory	trajectory	NOUN
ajst-26222	39	85	privacy	privacy	NOUN
ajst-26222	39	86	protection	protection	NOUN
ajst-26222	39	87	for	for	ADP
ajst-26222	39	88	the	the	DET
ajst-26222	39	89	user	user	NOUN
ajst-26222	39	90	.	.	PUNCT
ajst-26222	40	1	the	the	DET
ajst-26222	40	2	rest	rest	NOUN
ajst-26222	40	3	of	of	ADP
ajst-26222	40	4	this	this	DET
ajst-26222	40	5	paper	paper	NOUN
ajst-26222	40	6	is	be	AUX
ajst-26222	40	7	organized	organize	VERB
ajst-26222	40	8	as	as	SCONJ
ajst-26222	40	9	follows	follow	VERB
ajst-26222	40	10	:	:	PUNCT
ajst-26222	40	11	some	some	DET
ajst-26222	40	12	necessary	necessary	ADJ
ajst-26222	40	13	preliminaries	preliminary	NOUN
ajst-26222	40	14	are	be	AUX
ajst-26222	40	15	described	describe	VERB
ajst-26222	40	16	in	in	ADP
ajst-26222	40	17	sect	sect	NOUN
ajst-26222	40	18	.	.	PUNCT
ajst-26222	41	1	2	2	X
ajst-26222	41	2	.	.	X
ajst-26222	41	3	the	the	DET
ajst-26222	41	4	kanonymous	kanonymous	ADJ
ajst-26222	41	5	trajectory	trajectory	PROPN
ajst-26222	41	6	privacy	privacy	PROPN
ajst-26222	41	7	protection	protection	NOUN
ajst-26222	41	8	scheme	scheme	NOUN
ajst-26222	41	9	based	base	VERB
ajst-26222	41	10	on	on	ADP
ajst-26222	41	11	differential	differential	ADJ
ajst-26222	41	12	privacy	privacy	NOUN
ajst-26222	41	13	is	be	AUX
ajst-26222	41	14	proposed	propose	VERB
ajst-26222	41	15	in	in	ADP
ajst-26222	41	16	sect	sect	NOUN
ajst-26222	41	17	.	.	PUNCT
ajst-26222	42	1	3	3	X
ajst-26222	42	2	.	.	X
ajst-26222	42	3	the	the	DET
ajst-26222	42	4	security	security	NOUN
ajst-26222	42	5	analysis	analysis	NOUN
ajst-26222	42	6	of	of	ADP
ajst-26222	42	7	the	the	DET
ajst-26222	42	8	k	k	ADJ
ajst-26222	42	9	-	-	ADJ
ajst-26222	42	10	anonymous	anonymous	ADJ
ajst-26222	42	11	trajectory	trajectory	PROPN
ajst-26222	42	12	privacy	privacy	PROPN
ajst-26222	42	13	protection	protection	NOUN
ajst-26222	42	14	scheme	scheme	NOUN
ajst-26222	42	15	based	base	VERB
ajst-26222	42	16	on	on	ADP
ajst-26222	42	17	differential	differential	ADJ
ajst-26222	42	18	privacy	privacy	NOUN
ajst-26222	42	19	is	be	AUX
ajst-26222	42	20	given	give	VERB
ajst-26222	42	21	in	in	ADP
ajst-26222	42	22	sect	sect	NOUN
ajst-26222	42	23	.	.	PUNCT
ajst-26222	43	1	4	4	X
ajst-26222	43	2	.	.	X
ajst-26222	43	3	sect	sect	NOUN
ajst-26222	43	4	.	.	PUNCT
ajst-26222	44	1	5	5	NUM
ajst-26222	44	2	focuses	focus	VERB
ajst-26222	44	3	on	on	ADP
ajst-26222	44	4	the	the	DET
ajst-26222	44	5	simulation	simulation	NOUN
ajst-26222	44	6	of	of	ADP
ajst-26222	44	7	the	the	DET
ajst-26222	44	8	proposed	propose	VERB
ajst-26222	44	9	scheme	scheme	NOUN
ajst-26222	44	10	.	.	PUNCT
ajst-26222	45	1	and	and	CCONJ
ajst-26222	45	2	conclusions	conclusion	NOUN
ajst-26222	45	3	are	be	AUX
ajst-26222	45	4	drawn	draw	VERB
ajst-26222	45	5	in	in	ADP
ajst-26222	45	6	sect	sect	NOUN
ajst-26222	45	7	.	.	PUNCT
ajst-26222	46	1	6	6	NUM
ajst-26222	46	2	.	.	SYM
ajst-26222	46	3	2	2	NUM
ajst-26222	46	4	.	.	NUM
ajst-26222	46	5	preliminaries	preliminary	NOUN
ajst-26222	46	6	2.1	2.1	NUM
ajst-26222	46	7	.	.	PUNCT
ajst-26222	47	1	systematic	systematic	ADJ
ajst-26222	47	2	structure	structure	NOUN
ajst-26222	47	3	as	as	SCONJ
ajst-26222	47	4	shown	show	VERB
ajst-26222	47	5	in	in	ADP
ajst-26222	47	6	figure	figure	NOUN
ajst-26222	47	7	.	.	PUNCT
ajst-26222	48	1	1	1	NUM
ajst-26222	48	2	,	,	PUNCT
ajst-26222	48	3	the	the	DET
ajst-26222	48	4	trajectory	trajectory	NOUN
ajst-26222	48	5	privacy	privacy	NOUN
ajst-26222	48	6	protection	protection	NOUN
ajst-26222	48	7	system	system	NOUN
ajst-26222	48	8	model	model	NOUN
ajst-26222	48	9	adopts	adopt	VERB
ajst-26222	48	10	an	an	DET
ajst-26222	48	11	independent	independent	ADJ
ajst-26222	48	12	structure	structure	NOUN
ajst-26222	48	13	and	and	CCONJ
ajst-26222	48	14	consists	consist	VERB
ajst-26222	48	15	of	of	ADP
ajst-26222	48	16	two	two	NUM
ajst-26222	48	17	parts	part	NOUN
ajst-26222	48	18	:	:	PUNCT
ajst-26222	48	19	the	the	DET
ajst-26222	48	20	client	client	NOUN
ajst-26222	48	21	and	and	CCONJ
ajst-26222	48	22	the	the	DET
ajst-26222	48	23	lbs	lbs	NOUN
ajst-26222	48	24	server	server	NOUN
ajst-26222	48	25	.	.	PUNCT
ajst-26222	49	1	the	the	DET
ajst-26222	49	2	roles	role	NOUN
ajst-26222	49	3	of	of	ADP
ajst-26222	49	4	each	each	DET
ajst-26222	49	5	part	part	NOUN
ajst-26222	49	6	are	be	AUX
ajst-26222	49	7	as	as	SCONJ
ajst-26222	49	8	follows	follow	VERB
ajst-26222	49	9	:	:	PUNCT
ajst-26222	49	10	client	client	NOUN
ajst-26222	49	11	:	:	PUNCT
ajst-26222	49	12	responsible	responsible	ADJ
ajst-26222	49	13	for	for	ADP
ajst-26222	49	14	generating	generate	VERB
ajst-26222	49	15	multiple	multiple	ADJ
ajst-26222	49	16	noisy	noisy	ADJ
ajst-26222	49	17	users	user	NOUN
ajst-26222	49	18	,	,	PUNCT
ajst-26222	49	19	requesting	request	VERB
ajst-26222	49	20	the	the	DET
ajst-26222	49	21	lbs	lbs	PROPN
ajst-26222	49	22	server	server	NOUN
ajst-26222	49	23	to	to	PART
ajst-26222	49	24	obtain	obtain	VERB
ajst-26222	49	25	the	the	DET
ajst-26222	49	26	query	query	NOUN
ajst-26222	49	27	results	result	NOUN
ajst-26222	49	28	,	,	PUNCT
ajst-26222	49	29	and	and	CCONJ
ajst-26222	49	30	completing	complete	VERB
ajst-26222	49	31	the	the	DET
ajst-26222	49	32	refinement	refinement	NOUN
ajst-26222	49	33	of	of	ADP
ajst-26222	49	34	the	the	DET
ajst-26222	49	35	query	query	NOUN
ajst-26222	49	36	results	result	NOUN
ajst-26222	49	37	.	.	PUNCT
ajst-26222	50	1	lbs	lbs	PROPN
ajst-26222	50	2	server	server	NOUN
ajst-26222	50	3	:	:	PUNCT
ajst-26222	50	4	lbs	lbs	NOUN
ajst-26222	50	5	responsible	responsible	ADJ
ajst-26222	50	6	for	for	ADP
ajst-26222	50	7	receiving	receive	VERB
ajst-26222	50	8	and	and	CCONJ
ajst-26222	50	9	processing	process	VERB
ajst-26222	50	10	the	the	DET
ajst-26222	50	11	user	user	NOUN
ajst-26222	50	12	's	's	PART
ajst-26222	50	13	anonymization	anonymization	NOUN
ajst-26222	50	14	request	request	NOUN
ajst-26222	50	15	,	,	PUNCT
ajst-26222	50	16	and	and	CCONJ
ajst-26222	50	17	returning	return	VERB
ajst-26222	50	18	the	the	DET
ajst-26222	50	19	query	query	NOUN
ajst-26222	50	20	result	result	NOUN
ajst-26222	50	21	to	to	ADP
ajst-26222	50	22	the	the	DET
ajst-26222	50	23	user	user	NOUN
ajst-26222	50	24	.	.	PUNCT
ajst-26222	51	1	figure	figure	VERB
ajst-26222	51	2	1	1	NUM
ajst-26222	51	3	.	.	PUNCT
ajst-26222	52	1	architecture	architecture	NOUN
ajst-26222	52	2	of	of	ADP
ajst-26222	52	3	location	location	NOUN
ajst-26222	52	4	privacy	privacy	NOUN
ajst-26222	52	5	protection	protection	NOUN
ajst-26222	52	6	system	system	NOUN
ajst-26222	52	7	in	in	ADP
ajst-26222	52	8	this	this	DET
ajst-26222	52	9	scheme	scheme	NOUN
ajst-26222	52	10	2.2	2.2	NUM
ajst-26222	52	11	.	.	PUNCT
ajst-26222	53	1	trajectory	trajectory	NOUN
ajst-26222	53	2	similarity	similarity	NOUN
ajst-26222	53	3	trajectory	trajectory	NOUN
ajst-26222	53	4	:	:	PUNCT
ajst-26222	53	5	trajectory	trajectory	NOUN
ajst-26222	53	6	refers	refer	VERB
ajst-26222	53	7	to	to	ADP
ajst-26222	53	8	the	the	DET
ajst-26222	53	9	collection	collection	NOUN
ajst-26222	53	10	of	of	ADP
ajst-26222	53	11	the	the	DET
ajst-26222	53	12	position	position	NOUN
ajst-26222	53	13	sequence	sequence	NOUN
ajst-26222	53	14	of	of	ADP
ajst-26222	53	15	a	a	DET
ajst-26222	53	16	moving	move	VERB
ajst-26222	53	17	object	object	NOUN
ajst-26222	53	18	at	at	ADP
ajst-26222	53	19	different	different	ADJ
ajst-26222	53	20	moments	moment	NOUN
ajst-26222	53	21	,	,	PUNCT
ajst-26222	53	22	which	which	PRON
ajst-26222	53	23	can	can	AUX
ajst-26222	53	24	be	be	AUX
ajst-26222	53	25	expressed	express	VERB
ajst-26222	53	26	as	as	ADP
ajst-26222	53	27	:	:	PUNCT
ajst-26222	53	28	,	,	PUNCT
ajst-26222	53	29	,	,	PUNCT
ajst-26222	53	30	,	,	PUNCT
ajst-26222	53	31	,	,	PUNCT
ajst-26222	53	32	,	,	PUNCT
ajst-26222	53	33	,	,	PUNCT
ajst-26222	53	34	,	,	PUNCT
ajst-26222	53	35	⋯	⋯	PROPN
ajst-26222	53	36	,	,	PUNCT
ajst-26222	53	37	,	,	PUNCT
ajst-26222	53	38	,	,	PUNCT
ajst-26222	53	39	(	(	PUNCT
ajst-26222	53	40	1	1	X
ajst-26222	53	41	)	)	PUNCT
ajst-26222	53	42	where	where	SCONJ
ajst-26222	53	43	represents	represent	VERB
ajst-26222	53	44	the	the	DET
ajst-26222	53	45	identification	identification	NOUN
ajst-26222	53	46	of	of	ADP
ajst-26222	53	47	the	the	DET
ajst-26222	53	48	moving	move	VERB
ajst-26222	53	49	object	object	NOUN
ajst-26222	53	50	,	,	PUNCT
ajst-26222	53	51	represents	represent	VERB
ajst-26222	53	52	the	the	DET
ajst-26222	53	53	position	position	NOUN
ajst-26222	53	54	of	of	ADP
ajst-26222	53	55	the	the	DET
ajst-26222	53	56	moving	move	VERB
ajst-26222	53	57	object	object	NOUN
ajst-26222	53	58	at	at	ADP
ajst-26222	53	59	the	the	DET
ajst-26222	53	60	time	time	NOUN
ajst-26222	53	61	,	,	PUNCT
ajst-26222	53	62	,	,	PUNCT
ajst-26222	53	63	and	and	CCONJ
ajst-26222	53	64	,	,	PUNCT
ajst-26222	53	65	,	,	PUNCT
ajst-26222	53	66	represents	represent	VERB
ajst-26222	53	67	the	the	DET
ajst-26222	53	68	number	number	NOUN
ajst-26222	53	69	of	of	ADP
ajst-26222	53	70	positions	position	NOUN
ajst-26222	53	71	on	on	ADP
ajst-26222	53	72	the	the	DET
ajst-26222	53	73	trajectory	trajectory	NOUN
ajst-26222	53	74	.	.	PUNCT
ajst-26222	54	1	suppose	suppose	VERB
ajst-26222	54	2	that	that	SCONJ
ajst-26222	54	3	the	the	DET
ajst-26222	54	4	movement	movement	NOUN
ajst-26222	54	5	direction	direction	NOUN
ajst-26222	54	6	of	of	ADP
ajst-26222	54	7	the	the	DET
ajst-26222	54	8	user	user	NOUN
ajst-26222	54	9	at	at	ADP
ajst-26222	54	10	the	the	DET
ajst-26222	54	11	position	position	NOUN
ajst-26222	54	12	,	,	PUNCT
ajst-26222	54	13	y	y	PROPN
ajst-26222	54	14	relative	relative	ADJ
ajst-26222	54	15	to	to	ADP
ajst-26222	54	16	the	the	DET
ajst-26222	54	17	initial	initial	ADJ
ajst-26222	54	18	position	position	NOUN
ajst-26222	54	19	is	be	AUX
ajst-26222	54	20	changed	change	VERB
ajst-26222	54	21	to	to	ADP
ajst-26222	54	22	,	,	PUNCT
ajst-26222	54	23	calculated	calculate	VERB
ajst-26222	54	24	between	between	ADP
ajst-26222	54	25	,	,	PUNCT
ajst-26222	54	26	y	y	PROPN
ajst-26222	54	27	and	and	CCONJ
ajst-26222	54	28	,	,	PUNCT
ajst-26222	54	29	by	by	ADP
ajst-26222	54	30	.	.	PUNCT
ajst-26222	55	1	the	the	DET
ajst-26222	55	2	position	position	NOUN
ajst-26222	55	3	on	on	ADP
ajst-26222	55	4	the	the	DET
ajst-26222	55	5	noise	noise	NOUN
ajst-26222	55	6	trajectory	trajectory	NOUN
ajst-26222	55	7	changes	change	NOUN
ajst-26222	55	8	relative	relative	ADJ
ajst-26222	55	9	to	to	ADP
ajst-26222	55	10	the	the	DET
ajst-26222	55	11	initial	initial	ADJ
ajst-26222	55	12	position	position	NOUN
ajst-26222	55	13	xxx	xxx	NOUN
ajst-26222	55	14	,	,	PUNCT
ajst-26222	55	15	so	so	ADV
ajst-26222	55	16	the	the	DET
ajst-26222	55	17	trajectory	trajectory	NOUN
ajst-26222	55	18	similarity	similarity	NOUN
ajst-26222	55	19	can	can	AUX
ajst-26222	55	20	be	be	AUX
ajst-26222	55	21	expressed	express	VERB
ajst-26222	55	22	as	as	SCONJ
ajst-26222	55	23	:	:	PUNCT
ajst-26222	55	24	∑	∑	PUNCT
ajst-26222	55	25	′	′	NUM
ajst-26222	55	26	(	(	PUNCT
ajst-26222	55	27	2	2	X
ajst-26222	55	28	)	)	PUNCT
ajst-26222	55	29	the	the	DET
ajst-26222	55	30	smaller	small	ADJ
ajst-26222	55	31	is	be	AUX
ajst-26222	55	32	,	,	PUNCT
ajst-26222	55	33	the	the	PRON
ajst-26222	55	34	more	more	ADV
ajst-26222	55	35	difficult	difficult	ADJ
ajst-26222	55	36	it	it	PRON
ajst-26222	55	37	is	be	AUX
ajst-26222	55	38	to	to	PART
ajst-26222	55	39	distinguish	distinguish	VERB
ajst-26222	55	40	the	the	DET
ajst-26222	55	41	user	user	NOUN
ajst-26222	55	42	trajectory	trajectory	NOUN
ajst-26222	55	43	from	from	ADP
ajst-26222	55	44	the	the	DET
ajst-26222	55	45	noise	noise	NOUN
ajst-26222	55	46	trajectory	trajectory	NOUN
ajst-26222	55	47	.	.	PUNCT
ajst-26222	56	1	2.3	2.3	NUM
ajst-26222	56	2	.	.	PUNCT
ajst-26222	57	1	k	k	X
ajst-26222	57	2	-	-	PUNCT
ajst-26222	57	3	anonymity	anonymity	NOUN
ajst-26222	57	4	k	k	NOUN
ajst-26222	57	5	-	-	NOUN
ajst-26222	57	6	anonymity	anonymity	NOUN
ajst-26222	57	7	is	be	AUX
ajst-26222	57	8	one	one	NUM
ajst-26222	57	9	of	of	ADP
ajst-26222	57	10	the	the	DET
ajst-26222	57	11	privacy	privacy	NOUN
ajst-26222	57	12	protection	protection	NOUN
ajst-26222	57	13	methods	method	NOUN
ajst-26222	57	14	widely	widely	ADV
ajst-26222	57	15	used	use	VERB
ajst-26222	57	16	in	in	ADP
ajst-26222	57	17	lbs	lbs	NOUN
ajst-26222	57	18	location	location	NOUN
ajst-26222	57	19	privacy	privacy	NOUN
ajst-26222	57	20	protection	protection	NOUN
ajst-26222	57	21	.	.	PUNCT
ajst-26222	58	1	it	it	PRON
ajst-26222	58	2	provides	provide	VERB
ajst-26222	58	3	low	low	ADJ
ajst-26222	58	4	-	-	PUNCT
ajst-26222	58	5	precision	precision	NOUN
ajst-26222	58	6	privacy	privacy	NOUN
ajst-26222	58	7	protection	protection	NOUN
ajst-26222	58	8	by	by	ADP
ajst-26222	58	9	generalizing	generalize	VERB
ajst-26222	58	10	and	and	CCONJ
ajst-26222	58	11	hiding	hide	VERB
ajst-26222	58	12	certain	certain	ADJ
ajst-26222	58	13	attributes	attribute	NOUN
ajst-26222	58	14	.	.	PUNCT
ajst-26222	59	1	most	most	ADJ
ajst-26222	59	2	location	location	NOUN
ajst-26222	59	3	-	-	PUNCT
ajst-26222	59	4	based	base	VERB
ajst-26222	59	5	systems	system	NOUN
ajst-26222	59	6	use	use	VERB
ajst-26222	59	7	kanonymity	kanonymity	NOUN
ajst-26222	59	8	to	to	PART
ajst-26222	59	9	protect	protect	VERB
ajst-26222	59	10	the	the	DET
ajst-26222	59	11	identity	identity	NOUN
ajst-26222	59	12	of	of	ADP
ajst-26222	59	13	users	user	NOUN
ajst-26222	59	14	,	,	PUNCT
ajst-26222	59	15	so	so	SCONJ
ajst-26222	59	16	that	that	SCONJ
ajst-26222	59	17	an	an	DET
ajst-26222	59	18	attacker	attacker	NOUN
ajst-26222	59	19	can	can	AUX
ajst-26222	59	20	not	not	PART
ajst-26222	59	21	determine	determine	VERB
ajst-26222	59	22	which	which	PRON
ajst-26222	59	23	of	of	ADP
ajst-26222	59	24	the	the	DET
ajst-26222	59	25	users	user	NOUN
ajst-26222	59	26	is	be	AUX
ajst-26222	59	27	the	the	DET
ajst-26222	59	28	real	real	ADJ
ajst-26222	59	29	target	target	NOUN
ajst-26222	59	30	.	.	PUNCT
ajst-26222	60	1	one	one	NUM
ajst-26222	60	2	method	method	NOUN
ajst-26222	60	3	is	be	AUX
ajst-26222	60	4	to	to	PART
ajst-26222	60	5	generate	generate	VERB
ajst-26222	60	6	1	1	NUM
ajst-26222	60	7	correct	correct	ADJ
ajst-26222	60	8	pseudo	pseudo	NOUN
ajst-26222	60	9	locations	location	NOUN
ajst-26222	60	10	,	,	PUNCT
ajst-26222	60	11	and	and	CCONJ
ajst-26222	60	12	use	use	VERB
ajst-26222	60	13	the	the	DET
ajst-26222	60	14	pseudo	pseudo	NOUN
ajst-26222	60	15	locations	location	NOUN
ajst-26222	60	16	and	and	CCONJ
ajst-26222	60	17	real	real	ADJ
ajst-26222	60	18	locations	location	NOUN
ajst-26222	60	19	to	to	PART
ajst-26222	60	20	form	form	VERB
ajst-26222	60	21	an	an	DET
ajst-26222	60	22	anonymous	anonymous	ADJ
ajst-26222	60	23	user	user	NOUN
ajst-26222	60	24	group	group	NOUN
ajst-26222	60	25	to	to	PART
ajst-26222	60	26	perform	perform	VERB
ajst-26222	60	27	queries	query	NOUN
ajst-26222	60	28	to	to	ADP
ajst-26222	60	29	the	the	DET
ajst-26222	60	30	location	location	NOUN
ajst-26222	60	31	service	service	NOUN
ajst-26222	60	32	provider	provider	NOUN
ajst-26222	60	33	.	.	PUNCT
ajst-26222	61	1	another	another	DET
ajst-26222	61	2	method	method	NOUN
ajst-26222	61	3	is	be	AUX
ajst-26222	61	4	to	to	PART
ajst-26222	61	5	create	create	VERB
ajst-26222	61	6	an	an	DET
ajst-26222	61	7	invisible	invisible	ADJ
ajst-26222	61	8	area	area	NOUN
ajst-26222	61	9	containing	contain	VERB
ajst-26222	61	10	users	user	NOUN
ajst-26222	61	11	who	who	PRON
ajst-26222	61	12	share	share	VERB
ajst-26222	61	13	points	point	NOUN
ajst-26222	61	14	of	of	ADP
ajst-26222	61	15	interest	interest	NOUN
ajst-26222	61	16	,	,	PUNCT
ajst-26222	61	17	and	and	CCONJ
ajst-26222	61	18	then	then	ADV
ajst-26222	61	19	use	use	VERB
ajst-26222	61	20	this	this	DET
ajst-26222	61	21	invisible	invisible	ADJ
ajst-26222	61	22	area	area	NOUN
ajst-26222	61	23	to	to	PART
ajst-26222	61	24	query	query	VERB
ajst-26222	61	25	the	the	DET
ajst-26222	61	26	server	server	NOUN
ajst-26222	61	27	instead	instead	ADV
ajst-26222	61	28	of	of	ADP
ajst-26222	61	29	the	the	DET
ajst-26222	61	30	exact	exact	ADJ
ajst-26222	61	31	location	location	NOUN
ajst-26222	61	32	.	.	PUNCT
ajst-26222	62	1	the	the	PRON
ajst-26222	62	2	larger	large	ADJ
ajst-26222	62	3	the	the	DET
ajst-26222	62	4	,	,	PUNCT
ajst-26222	62	5	the	the	PRON
ajst-26222	62	6	lower	low	ADJ
ajst-26222	62	7	the	the	DET
ajst-26222	62	8	quality	quality	NOUN
ajst-26222	62	9	of	of	ADP
ajst-26222	62	10	service	service	NOUN
ajst-26222	62	11	the	the	DET
ajst-26222	62	12	user	user	NOUN
ajst-26222	62	13	obtains	obtain	VERB
ajst-26222	62	14	,	,	PUNCT
ajst-26222	62	15	but	but	CCONJ
ajst-26222	62	16	the	the	PRON
ajst-26222	62	17	lower	low	ADJ
ajst-26222	62	18	the	the	DET
ajst-26222	62	19	risk	risk	NOUN
ajst-26222	62	20	of	of	ADP
ajst-26222	62	21	privacy	privacy	NOUN
ajst-26222	62	22	leakage	leakage	NOUN
ajst-26222	62	23	.	.	PUNCT
ajst-26222	63	1	however	however	ADV
ajst-26222	63	2	,	,	PUNCT
ajst-26222	63	3	when	when	SCONJ
ajst-26222	63	4	the	the	DET
ajst-26222	63	5	attacker	attacker	NOUN
ajst-26222	63	6	has	have	VERB
ajst-26222	63	7	enough	enough	ADJ
ajst-26222	63	8	background	background	NOUN
ajst-26222	63	9	knowledge	knowledge	NOUN
ajst-26222	63	10	,	,	PUNCT
ajst-26222	63	11	he	he	PRON
ajst-26222	63	12	can	can	AUX
ajst-26222	63	13	infer	infer	VERB
ajst-26222	63	14	the	the	DET
ajst-26222	63	15	real	real	ADJ
ajst-26222	63	16	target	target	NOUN
ajst-26222	63	17	.	.	PUNCT
ajst-26222	64	1	therefore	therefore	ADV
ajst-26222	64	2	,	,	PUNCT
ajst-26222	64	3	the	the	DET
ajst-26222	64	4	differential	differential	PROPN
ajst-26222	64	5	privacy	privacy	NOUN
ajst-26222	64	6	protection	protection	NOUN
ajst-26222	64	7	method	method	NOUN
ajst-26222	64	8	that	that	PRON
ajst-26222	64	9	ignores	ignore	VERB
ajst-26222	64	10	background	background	NOUN
ajst-26222	64	11	knowledge	knowledge	NOUN
ajst-26222	64	12	makes	make	VERB
ajst-26222	64	13	up	up	ADP
ajst-26222	64	14	for	for	ADP
ajst-26222	64	15	the	the	DET
ajst-26222	64	16	shortcomings	shortcoming	NOUN
ajst-26222	64	17	of	of	ADP
ajst-26222	64	18	kanonymity	kanonymity	NOUN
ajst-26222	64	19	in	in	ADP
ajst-26222	64	20	this	this	DET
ajst-26222	64	21	respect	respect	NOUN
ajst-26222	64	22	.	.	PUNCT
ajst-26222	65	1	2.4	2.4	NUM
ajst-26222	65	2	.	.	PUNCT
ajst-26222	66	1	differential	differential	PROPN
ajst-26222	66	2	privacy	privacy	PROPN
ajst-26222	66	3	differential	differential	PROPN
ajst-26222	66	4	privacy	privacy	NOUN
ajst-26222	66	5	protection	protection	NOUN
ajst-26222	66	6	achieves	achieve	VERB
ajst-26222	66	7	the	the	DET
ajst-26222	66	8	purpose	purpose	NOUN
ajst-26222	66	9	of	of	ADP
ajst-26222	66	10	privacy	privacy	NOUN
ajst-26222	66	11	protection	protection	NOUN
ajst-26222	66	12	by	by	ADP
ajst-26222	66	13	distorting	distort	VERB
ajst-26222	66	14	data	datum	NOUN
ajst-26222	66	15	,	,	PUNCT
ajst-26222	66	16	ensuring	ensure	VERB
ajst-26222	66	17	that	that	SCONJ
ajst-26222	66	18	privacy	privacy	NOUN
ajst-26222	66	19	leakage	leakage	NOUN
ajst-26222	66	20	is	be	AUX
ajst-26222	66	21	minimized	minimize	VERB
ajst-26222	66	22	and	and	CCONJ
ajst-26222	66	23	data	datum	NOUN
ajst-26222	66	24	availability	availability	NOUN
ajst-26222	66	25	is	be	AUX
ajst-26222	66	26	maximized	maximize	VERB
ajst-26222	66	27	.	.	PUNCT
ajst-26222	67	1	differential	differential	ADJ
ajst-26222	67	2	privacy	privacy	NOUN
ajst-26222	67	3	is	be	AUX
ajst-26222	67	4	defined	define	VERB
ajst-26222	67	5	as	as	SCONJ
ajst-26222	67	6	follows	follow	VERB
ajst-26222	67	7	:	:	PUNCT
ajst-26222	68	1	-differential	-differential	ADJ
ajst-26222	68	2	privacy	privacy	NOUN
ajst-26222	68	3	[	[	X
ajst-26222	68	4	15	15	NUM
ajst-26222	68	5	-	-	SYM
ajst-26222	68	6	16	16	NUM
ajst-26222	68	7	]	]	PUNCT
ajst-26222	68	8	.	.	PUNCT
ajst-26222	69	1	supposing	suppose	VERB
ajst-26222	69	2	that	that	PRON
ajst-26222	69	3	and	and	CCONJ
ajst-26222	69	4	are	be	AUX
ajst-26222	69	5	a	a	DET
ajst-26222	69	6	pair	pair	NOUN
ajst-26222	69	7	of	of	ADP
ajst-26222	69	8	adjacent	adjacent	ADJ
ajst-26222	69	9	datasets	dataset	NOUN
ajst-26222	69	10	that	that	PRON
ajst-26222	69	11	are	be	AUX
ajst-26222	69	12	only	only	ADV
ajst-26222	69	13	differ	differ	VERB
ajst-26222	69	14	in	in	ADP
ajst-26222	69	15	one	one	NUM
ajst-26222	69	16	record	record	NOUN
ajst-26222	69	17	,	,	PUNCT
ajst-26222	69	18	a	a	DET
ajst-26222	69	19	random	random	ADJ
ajst-26222	69	20	algorithm	algorithm	NOUN
ajst-26222	69	21	is	be	AUX
ajst-26222	69	22	-differential	-differential	ADJ
ajst-26222	69	23	private	private	ADJ
ajst-26222	69	24	if	if	SCONJ
ajst-26222	69	25	of	of	ADP
ajst-26222	69	26	all	all	PRON
ajst-26222	69	27	:	:	PUNCT
ajst-26222	69	28	∈	∈	PROPN
ajst-26222	69	29	∈	∈	PROPN
ajst-26222	69	30	(	(	PUNCT
ajst-26222	69	31	3	3	NUM
ajst-26222	69	32	)	)	PUNCT
ajst-26222	69	33	where	where	SCONJ
ajst-26222	69	34	is	be	AUX
ajst-26222	69	35	the	the	DET
ajst-26222	69	36	probability	probability	NOUN
ajst-26222	69	37	that	that	SCONJ
ajst-26222	69	38	the	the	DET
ajst-26222	69	39	algorithm	algorithm	NOUN
ajst-26222	69	40	output	output	NOUN
ajst-26222	69	41	and	and	CCONJ
ajst-26222	69	42	is	be	AUX
ajst-26222	69	43	the	the	DET
ajst-26222	69	44	subset	subset	NOUN
ajst-26222	69	45	of	of	ADP
ajst-26222	69	46	all	all	DET
ajst-26222	69	47	the	the	DET
ajst-26222	69	48	output	output	NOUN
ajst-26222	69	49	of	of	ADP
ajst-26222	69	50	the	the	DET
ajst-26222	69	51	algorithm	algorithm	NOUN
ajst-26222	69	52	.	.	PUNCT
ajst-26222	70	1	sensitivity	sensitivity	NOUN
ajst-26222	70	2	.	.	PUNCT
ajst-26222	71	1	for	for	ADP
ajst-26222	71	2	the	the	DET
ajst-26222	71	3	query	query	NOUN
ajst-26222	71	4	function	function	NOUN
ajst-26222	71	5	:	:	PUNCT
ajst-26222	71	6	→	→	SYM
ajst-26222	71	7	,	,	PUNCT
ajst-26222	71	8	the	the	DET
ajst-26222	71	9	sensitivity	sensitivity	NOUN
ajst-26222	71	10	is	be	AUX
ajst-26222	71	11	defined	define	VERB
ajst-26222	71	12	as	as	ADP
ajst-26222	71	13	the	the	DET
ajst-26222	71	14	difference	difference	NOUN
ajst-26222	71	15	between	between	ADP
ajst-26222	71	16	the	the	DET
ajst-26222	71	17	adjacent	adjacent	ADJ
ajst-26222	71	18	datasets	dataset	NOUN
ajst-26222	71	19	and	and	CCONJ
ajst-26222	71	20	:	:	PUNCT
ajst-26222	72	1	‖	‖	PROPN
ajst-26222	72	2	‖	‖	PROPN
ajst-26222	72	3	(	(	PUNCT
ajst-26222	72	4	4	4	NUM
ajst-26222	72	5	)	)	PUNCT
ajst-26222	72	6	laplace	laplace	NOUN
ajst-26222	72	7	mechanism	mechanism	NOUN
ajst-26222	72	8	[	[	X
ajst-26222	72	9	17	17	NUM
ajst-26222	72	10	]	]	PUNCT
ajst-26222	72	11	.	.	PUNCT
ajst-26222	73	1	the	the	DET
ajst-26222	73	2	laplace	laplace	NOUN
ajst-26222	73	3	mechanism	mechanism	NOUN
ajst-26222	73	4	implements	implement	VERB
ajst-26222	73	5	privacy	privacy	NOUN
ajst-26222	73	6	protection	protection	NOUN
ajst-26222	73	7	by	by	ADP
ajst-26222	73	8	adding	add	VERB
ajst-26222	73	9	laplacian	laplacian	ADJ
ajst-26222	73	10	distributed	distribute	VERB
ajst-26222	73	11	noise	noise	NOUN
ajst-26222	73	12	to	to	ADP
ajst-26222	73	13	the	the	DET
ajst-26222	73	14	query	query	NOUN
ajst-26222	73	15	results	result	VERB
ajst-26222	73	16	:	:	PUNCT
ajst-26222	73	17	(	(	PUNCT
ajst-26222	73	18	5	5	NUM
ajst-26222	73	19	)	)	PUNCT
ajst-26222	73	20	223	223	NUM
ajst-26222	74	1	the	the	DET
ajst-26222	74	2	laplace	laplace	NOUN
ajst-26222	74	3	distribution	distribution	NOUN
ajst-26222	74	4	density	density	NOUN
ajst-26222	74	5	function	function	NOUN
ajst-26222	74	6	is	be	AUX
ajst-26222	74	7	,	,	PUNCT
ajst-26222	74	8	|	|	ADV
ajst-26222	74	9	|	|	ADV
ajst-26222	74	10	.	.	PUNCT
ajst-26222	75	1	where	where	SCONJ
ajst-26222	75	2	is	be	AUX
ajst-26222	75	3	expected	expect	VERB
ajst-26222	75	4	value	value	NOUN
ajst-26222	75	5	,	,	PUNCT
ajst-26222	75	6	for	for	ADP
ajst-26222	75	7	each	each	DET
ajst-26222	75	8	noise	noise	NOUN
ajst-26222	75	9	,	,	PUNCT
ajst-26222	75	10	they	they	PRON
ajst-26222	75	11	are	be	AUX
ajst-26222	75	12	random	random	ADJ
ajst-26222	75	13	variables	variable	NOUN
ajst-26222	75	14	drawn	draw	VERB
ajst-26222	75	15	from	from	ADP
ajst-26222	75	16	the	the	DET
ajst-26222	75	17	laplace	laplace	NOUN
ajst-26222	75	18	distribution	distribution	NOUN
ajst-26222	75	19	centered	center	VERB
ajst-26222	75	20	at	at	ADP
ajst-26222	75	21	0	0	NUM
ajst-26222	75	22	,	,	PUNCT
ajst-26222	75	23	that	that	ADV
ajst-26222	75	24	is	is	ADV
ajst-26222	75	25	,	,	PUNCT
ajst-26222	75	26	.	.	PUNCT
ajst-26222	76	1	3	3	X
ajst-26222	76	2	.	.	X
ajst-26222	76	3	the	the	DET
ajst-26222	76	4	proposed	propose	VERB
ajst-26222	76	5	method	method	NOUN
ajst-26222	76	6	3.1	3.1	NUM
ajst-26222	76	7	.	.	PUNCT
ajst-26222	76	8	system	system	NOUN
ajst-26222	76	9	initialization	initialization	NOUN
ajst-26222	76	10	in	in	ADP
ajst-26222	76	11	this	this	DET
ajst-26222	76	12	phase	phase	NOUN
ajst-26222	76	13	,	,	PUNCT
ajst-26222	76	14	system	system	NOUN
ajst-26222	76	15	parameters	parameter	NOUN
ajst-26222	76	16	are	be	AUX
ajst-26222	76	17	generated	generate	VERB
ajst-26222	76	18	as	as	SCONJ
ajst-26222	76	19	follows	follow	VERB
ajst-26222	76	20	:	:	PUNCT
ajst-26222	76	21	step	step	NOUN
ajst-26222	76	22	1	1	NUM
ajst-26222	76	23	:	:	PUNCT
ajst-26222	76	24	define	define	VERB
ajst-26222	76	25	an	an	DET
ajst-26222	76	26	elliptic	elliptic	ADJ
ajst-26222	76	27	curve	curve	NOUN
ajst-26222	76	28	:	:	PUNCT
ajst-26222	76	29	,	,	PUNCT
ajst-26222	76	30	where	where	SCONJ
ajst-26222	76	31	is	be	AUX
ajst-26222	76	32	a	a	DET
ajst-26222	76	33	large	large	ADJ
ajst-26222	76	34	prime	prime	ADJ
ajst-26222	76	35	number	number	NOUN
ajst-26222	76	36	and	and	CCONJ
ajst-26222	76	37	is	be	AUX
ajst-26222	76	38	a	a	DET
ajst-26222	76	39	finite	finite	ADJ
ajst-26222	76	40	field	field	NOUN
ajst-26222	76	41	of	of	ADP
ajst-26222	76	42	order	order	NOUN
ajst-26222	76	43	large	large	ADJ
ajst-26222	76	44	prime	prime	ADJ
ajst-26222	76	45	number	number	NOUN
ajst-26222	76	46	,	,	PUNCT
ajst-26222	76	47	,	,	PUNCT
ajst-26222	76	48	∈	∈	PROPN
ajst-26222	76	49	,	,	PUNCT
ajst-26222	76	50	then	then	ADV
ajst-26222	76	51	select	select	VERB
ajst-26222	76	52	an	an	DET
ajst-26222	76	53	additive	additive	ADJ
ajst-26222	76	54	group	group	NOUN
ajst-26222	76	55	of	of	ADP
ajst-26222	76	56	order	order	NOUN
ajst-26222	76	57	with	with	ADP
ajst-26222	76	58	generator	generator	NOUN
ajst-26222	76	59	on	on	ADP
ajst-26222	76	60	the	the	DET
ajst-26222	76	61	elliptic	elliptic	ADJ
ajst-26222	76	62	curve	curve	NOUN
ajst-26222	76	63	.	.	PUNCT
ajst-26222	77	1	step	step	NOUN
ajst-26222	77	2	2	2	NUM
ajst-26222	77	3	:	:	PUNCT
ajst-26222	77	4	the	the	DET
ajst-26222	77	5	lbs	lbs	PROPN
ajst-26222	77	6	server	server	NOUN
ajst-26222	77	7	randomly	randomly	ADV
ajst-26222	77	8	selects	select	VERB
ajst-26222	77	9	a	a	DET
ajst-26222	77	10	∈	∈	NOUN
ajst-26222	77	11	∗	∗	NOUN
ajst-26222	77	12	as	as	ADP
ajst-26222	77	13	the	the	DET
ajst-26222	77	14	system	system	NOUN
ajst-26222	77	15	key	key	NOUN
ajst-26222	77	16	,	,	PUNCT
ajst-26222	77	17	and	and	CCONJ
ajst-26222	77	18	calculates	calculate	VERB
ajst-26222	77	19	its	its	PRON
ajst-26222	77	20	public	public	ADJ
ajst-26222	77	21	key	key	NOUN
ajst-26222	77	22	,	,	PUNCT
ajst-26222	77	23	where	where	SCONJ
ajst-26222	77	24	∗	∗	NOUN
ajst-26222	77	25	is	be	AUX
ajst-26222	77	26	an	an	DET
ajst-26222	77	27	integer	integer	NOUN
ajst-26222	77	28	multiplication	multiplication	NOUN
ajst-26222	77	29	group	group	NOUN
ajst-26222	77	30	modulo	modulo	VERB
ajst-26222	77	31	.	.	PUNCT
ajst-26222	78	1	step	step	NOUN
ajst-26222	78	2	3	3	NUM
ajst-26222	78	3	:	:	PUNCT
ajst-26222	78	4	define	define	VERB
ajst-26222	78	5	three	three	NUM
ajst-26222	78	6	secure	secure	ADJ
ajst-26222	78	7	hash	hash	NOUN
ajst-26222	78	8	functions	function	NOUN
ajst-26222	78	9	:	:	PUNCT
ajst-26222	78	10	:	:	PUNCT
ajst-26222	78	11	0,1	0,1	NUM
ajst-26222	78	12	∗	∗	NOUN
ajst-26222	78	13	→	→	SYM
ajst-26222	78	14	∗	∗	NOUN
ajst-26222	78	15	,	,	PUNCT
ajst-26222	78	16	:	:	PUNCT
ajst-26222	78	17	0,1	0,1	NUM
ajst-26222	78	18	∗	∗	NOUN
ajst-26222	78	19	→	→	SYM
ajst-26222	78	20	∗	∗	NOUN
ajst-26222	78	21	,	,	PUNCT
ajst-26222	78	22	:	:	PUNCT
ajst-26222	78	23	0,1	0,1	NUM
ajst-26222	78	24	∗	∗	NOUN
ajst-26222	78	25	→	→	SYM
ajst-26222	78	26	∗.	∗.	NUM
ajst-26222	78	27	step	step	NOUN
ajst-26222	78	28	4	4	NUM
ajst-26222	78	29	:	:	PUNCT
ajst-26222	78	30	lbs	lbs	PROPN
ajst-26222	78	31	server	server	NOUN
ajst-26222	78	32	publishes	publish	VERB
ajst-26222	78	33	the	the	DET
ajst-26222	78	34	public	public	ADJ
ajst-26222	78	35	parameters	parameter	NOUN
ajst-26222	78	36	of	of	ADP
ajst-26222	78	37	the	the	DET
ajst-26222	78	38	system	system	NOUN
ajst-26222	78	39	:	:	PUNCT
ajst-26222	78	40	params	param	VERB
ajst-26222	78	41	a	a	PRON
ajst-26222	78	42	,	,	PUNCT
ajst-26222	78	43	b	b	NOUN
ajst-26222	78	44	,	,	PUNCT
ajst-26222	78	45	p	p	X
ajst-26222	78	46	,	,	PUNCT
ajst-26222	78	47	q	q	ADJ
ajst-26222	78	48	,	,	PUNCT
ajst-26222	78	49	p	p	X
ajst-26222	78	50	,	,	PUNCT
ajst-26222	78	51	g	g	PROPN
ajst-26222	78	52	,	,	PUNCT
ajst-26222	78	53	p	p	X
ajst-26222	78	54	,	,	PUNCT
ajst-26222	78	55	h	h	NOUN
ajst-26222	78	56	,	,	PUNCT
ajst-26222	78	57	h	h	NOUN
ajst-26222	78	58	,	,	PUNCT
ajst-26222	78	59	h	h	NOUN
ajst-26222	78	60	,	,	PUNCT
ajst-26222	78	61	secret	secret	ADJ
ajst-26222	78	62	system	system	NOUN
ajst-26222	78	63	key	key	NOUN
ajst-26222	78	64	:	:	PUNCT
ajst-26222	78	65	s.	s.	PROPN
ajst-26222	78	66	3.2	3.2	NUM
ajst-26222	78	67	.	.	PUNCT
ajst-26222	79	1	user	user	NOUN
ajst-26222	79	2	registration	registration	NOUN
ajst-26222	79	3	since	since	SCONJ
ajst-26222	79	4	this	this	DET
ajst-26222	79	5	scheme	scheme	NOUN
ajst-26222	79	6	is	be	AUX
ajst-26222	79	7	devised	devise	VERB
ajst-26222	79	8	on	on	ADP
ajst-26222	79	9	the	the	DET
ajst-26222	79	10	basis	basis	NOUN
ajst-26222	79	11	of	of	ADP
ajst-26222	79	12	k	k	NOUN
ajst-26222	79	13	-	-	NOUN
ajst-26222	79	14	anonymity	anonymity	NOUN
ajst-26222	79	15	,	,	PUNCT
ajst-26222	79	16	so	so	SCONJ
ajst-26222	79	17	in	in	ADP
ajst-26222	79	18	this	this	DET
ajst-26222	79	19	phase	phase	NOUN
ajst-26222	79	20	,	,	PUNCT
ajst-26222	79	21	lbs	lbs	NOUN
ajst-26222	79	22	server	server	NOUN
ajst-26222	79	23	is	be	AUX
ajst-26222	79	24	employed	employ	VERB
ajst-26222	79	25	to	to	PART
ajst-26222	79	26	anonymize	anonymize	VERB
ajst-26222	79	27	users	user	NOUN
ajst-26222	79	28	’	’	PART
ajst-26222	79	29	identities	identity	NOUN
ajst-26222	79	30	,	,	PUNCT
ajst-26222	79	31	which	which	PRON
ajst-26222	79	32	is	be	AUX
ajst-26222	79	33	as	as	SCONJ
ajst-26222	79	34	follows	follow	VERB
ajst-26222	79	35	:	:	PUNCT
ajst-26222	79	36	step	step	NOUN
ajst-26222	79	37	1	1	NUM
ajst-26222	79	38	:	:	PUNCT
ajst-26222	79	39	user	user	NOUN
ajst-26222	79	40	randomly	randomly	ADV
ajst-26222	79	41	selects	select	VERB
ajst-26222	79	42	a	a	DET
ajst-26222	79	43	secret	secret	ADJ
ajst-26222	79	44	value	value	NOUN
ajst-26222	79	45	∈	∈	NOUN
ajst-26222	79	46	∗	∗	NOUN
ajst-26222	79	47	,	,	PUNCT
ajst-26222	79	48	and	and	CCONJ
ajst-26222	79	49	sends	send	VERB
ajst-26222	79	50	and	and	CCONJ
ajst-26222	79	51	users	user	NOUN
ajst-26222	80	1	real	real	ADJ
ajst-26222	80	2	i	i	PROPN
ajst-26222	80	3	d	d	PROPN
ajst-26222	80	4	to	to	ADP
ajst-26222	80	5	lbs	lbs	PROPN
ajst-26222	80	6	server	server	NOUN
ajst-26222	80	7	to	to	PART
ajst-26222	80	8	request	request	VERB
ajst-26222	80	9	registration	registration	NOUN
ajst-26222	80	10	.	.	PUNCT
ajst-26222	81	1	step	step	NOUN
ajst-26222	81	2	2	2	NUM
ajst-26222	81	3	:	:	PUNCT
ajst-26222	81	4	after	after	ADP
ajst-26222	81	5	receiving	receive	VERB
ajst-26222	81	6	the	the	DET
ajst-26222	81	7	registration	registration	NOUN
ajst-26222	81	8	request	request	NOUN
ajst-26222	81	9	,	,	PUNCT
ajst-26222	81	10	the	the	DET
ajst-26222	81	11	lbs	lbs	NOUN
ajst-26222	81	12	server	server	NOUN
ajst-26222	81	13	generates	generate	VERB
ajst-26222	81	14	a	a	DET
ajst-26222	81	15	false	false	ADJ
ajst-26222	81	16	identity	identity	NOUN
ajst-26222	81	17	||	||	NOUN
ajst-26222	81	18	for	for	ADP
ajst-26222	81	19	the	the	DET
ajst-26222	81	20	user	user	NOUN
ajst-26222	81	21	,	,	PUNCT
ajst-26222	81	22	then	then	ADV
ajst-26222	81	23	calculates	calculate	VERB
ajst-26222	81	24	,	,	PUNCT
ajst-26222	81	25	,	,	PUNCT
ajst-26222	81	26	,	,	PUNCT
ajst-26222	81	27	,	,	PUNCT
ajst-26222	81	28	and	and	CCONJ
ajst-26222	81	29	returns	return	VERB
ajst-26222	81	30	the	the	DET
ajst-26222	81	31	calculation	calculation	NOUN
ajst-26222	81	32	result	result	NOUN
ajst-26222	81	33	,	,	PUNCT
ajst-26222	81	34	,	,	PUNCT
ajst-26222	81	35	to	to	ADP
ajst-26222	81	36	the	the	DET
ajst-26222	81	37	user	user	NOUN
ajst-26222	81	38	through	through	ADP
ajst-26222	81	39	a	a	DET
ajst-26222	81	40	secure	secure	ADJ
ajst-26222	81	41	channel	channel	NOUN
ajst-26222	81	42	.	.	PUNCT
ajst-26222	82	1	step	step	NOUN
ajst-26222	82	2	3	3	NUM
ajst-26222	82	3	:	:	PUNCT
ajst-26222	82	4	after	after	ADP
ajst-26222	82	5	receiving	receive	VERB
ajst-26222	82	6	the	the	DET
ajst-26222	82	7	message	message	NOUN
ajst-26222	82	8	,	,	PUNCT
ajst-26222	82	9	,	,	PUNCT
ajst-26222	82	10	,	,	PUNCT
ajst-26222	82	11	the	the	DET
ajst-26222	82	12	user	user	NOUN
ajst-26222	82	13	judges	judge	VERB
ajst-26222	82	14	whether	whether	SCONJ
ajst-26222	82	15	?	?	PUNCT
ajst-26222	82	16	is	be	AUX
ajst-26222	82	17	valid	valid	ADJ
ajst-26222	82	18	or	or	CCONJ
ajst-26222	82	19	not	not	PART
ajst-26222	82	20	.	.	PUNCT
ajst-26222	83	1	if	if	SCONJ
ajst-26222	83	2	the	the	DET
ajst-26222	83	3	equation	equation	NOUN
ajst-26222	83	4	is	be	AUX
ajst-26222	83	5	valid	valid	ADJ
ajst-26222	83	6	,	,	PUNCT
ajst-26222	83	7	randomly	randomly	ADV
ajst-26222	83	8	selects	select	VERB
ajst-26222	83	9	∈	∈	NOUN
ajst-26222	83	10	∗	∗	NOUN
ajst-26222	83	11	,	,	PUNCT
ajst-26222	83	12	calculates	calculate	VERB
ajst-26222	83	13	,	,	PUNCT
ajst-26222	83	14	,	,	PUNCT
ajst-26222	83	15	,	,	PUNCT
ajst-26222	83	16	,	,	PUNCT
ajst-26222	83	17	,	,	PUNCT
ajst-26222	83	18	then	then	ADV
ajst-26222	83	19	use	use	VERB
ajst-26222	83	20	,	,	PUNCT
ajst-26222	83	21	as	as	ADP
ajst-26222	83	22	the	the	DET
ajst-26222	83	23	private	private	ADJ
ajst-26222	83	24	key	key	NOUN
ajst-26222	83	25	and	and	CCONJ
ajst-26222	83	26	as	as	ADP
ajst-26222	83	27	the	the	DET
ajst-26222	83	28	public	public	ADJ
ajst-26222	83	29	key	key	NOUN
ajst-26222	83	30	;	;	PUNCT
ajst-26222	83	31	otherwise	otherwise	ADV
ajst-26222	83	32	,	,	PUNCT
ajst-26222	83	33	go	go	VERB
ajst-26222	83	34	back	back	ADV
ajst-26222	83	35	to	to	PART
ajst-26222	83	36	step	step	NOUN
ajst-26222	83	37	1	1	NUM
ajst-26222	83	38	.	.	ADP
ajst-26222	83	39	3.3	3.3	NUM
ajst-26222	83	40	.	.	PUNCT
ajst-26222	84	1	user	user	NOUN
ajst-26222	84	2	registration	registration	NOUN
ajst-26222	84	3	in	in	ADP
ajst-26222	84	4	this	this	DET
ajst-26222	84	5	phase	phase	NOUN
ajst-26222	84	6	,	,	PUNCT
ajst-26222	84	7	false	false	ADJ
ajst-26222	84	8	locations	location	NOUN
ajst-26222	84	9	are	be	AUX
ajst-26222	84	10	generated	generate	VERB
ajst-26222	84	11	from	from	ADP
ajst-26222	84	12	mobile	mobile	ADJ
ajst-26222	84	13	terminal	terminal	ADJ
ajst-26222	84	14	users	user	NOUN
ajst-26222	84	15	,	,	PUNCT
ajst-26222	84	16	and	and	CCONJ
ajst-26222	84	17	1	1	NUM
ajst-26222	84	18	optimal	optimal	ADJ
ajst-26222	84	19	locations	location	NOUN
ajst-26222	84	20	are	be	AUX
ajst-26222	84	21	selected	select	VERB
ajst-26222	84	22	from	from	ADP
ajst-26222	84	23	2	2	NUM
ajst-26222	84	24	false	false	ADJ
ajst-26222	84	25	trajectorys	trajectory	NOUN
ajst-26222	84	26	.	.	PUNCT
ajst-26222	85	1	as	as	SCONJ
ajst-26222	85	2	follows	follow	VERB
ajst-26222	85	3	:	:	PUNCT
ajst-26222	85	4	step	step	NOUN
ajst-26222	85	5	1	1	NUM
ajst-26222	85	6	:	:	PUNCT
ajst-26222	85	7	the	the	DET
ajst-26222	85	8	laplace	laplace	NOUN
ajst-26222	85	9	cumulative	cumulative	ADJ
ajst-26222	85	10	distribution	distribution	NOUN
ajst-26222	85	11	function	function	NOUN
ajst-26222	85	12	is	be	AUX
ajst-26222	85	13	,	,	PUNCT
ajst-26222	85	14	0.5	0.5	NUM
ajst-26222	85	15	1	1	NUM
ajst-26222	85	16	1	1	NUM
ajst-26222	86	1	|	|	ADV
ajst-26222	86	2	|	|	ADV
ajst-26222	86	3	and	and	CCONJ
ajst-26222	86	4	its	its	PRON
ajst-26222	86	5	inverse	inverse	NOUN
ajst-26222	86	6	distribution	distribution	NOUN
ajst-26222	86	7	function	function	NOUN
ajst-26222	86	8	is	be	AUX
ajst-26222	86	9	⋅	⋅	NUM
ajst-26222	86	10	0.5	0.5	NUM
ajst-26222	86	11	⋅	⋅	PROPN
ajst-26222	86	12	1	1	NUM
ajst-26222	86	13	2|	2|	NUM
ajst-26222	86	14	0.5|	0.5|	NUM
ajst-26222	86	15	.	.	PUNCT
ajst-26222	87	1	where	where	SCONJ
ajst-26222	87	2	is	be	AUX
ajst-26222	87	3	a	a	DET
ajst-26222	87	4	random	random	ADJ
ajst-26222	87	5	number	number	NOUN
ajst-26222	87	6	of	of	ADP
ajst-26222	87	7	0,1	0,1	NUM
ajst-26222	87	8	,	,	PUNCT
ajst-26222	87	9	using	use	VERB
ajst-26222	87	10	the	the	DET
ajst-26222	87	11	inverse	inverse	ADJ
ajst-26222	87	12	distribution	distribution	NOUN
ajst-26222	87	13	function	function	NOUN
ajst-26222	87	14	to	to	PART
ajst-26222	87	15	calculate	calculate	VERB
ajst-26222	87	16	the	the	DET
ajst-26222	87	17	noise	noise	NOUN
ajst-26222	87	18	that	that	PRON
ajst-26222	87	19	obeys	obey	VERB
ajst-26222	87	20	the	the	DET
ajst-26222	87	21	laplace	laplace	NOUN
ajst-26222	87	22	distribution	distribution	NOUN
ajst-26222	87	23	.	.	PUNCT
ajst-26222	88	1	step	step	NOUN
ajst-26222	88	2	2	2	NUM
ajst-26222	88	3	:	:	PUNCT
ajst-26222	88	4	define	define	VERB
ajst-26222	88	5	the	the	DET
ajst-26222	88	6	user	user	NOUN
ajst-26222	88	7	's	's	PART
ajst-26222	88	8	trajectory	trajectory	NOUN
ajst-26222	88	9	as	as	ADP
ajst-26222	88	10	:	:	PUNCT
ajst-26222	88	11	,	,	PUNCT
ajst-26222	88	12	,	,	PUNCT
ajst-26222	88	13	,	,	PUNCT
ajst-26222	88	14	,	,	PUNCT
ajst-26222	88	15	,	,	PUNCT
ajst-26222	88	16	,	,	PUNCT
ajst-26222	88	17	,	,	PUNCT
ajst-26222	88	18	⋯	⋯	PROPN
ajst-26222	88	19	,	,	PUNCT
ajst-26222	88	20	,	,	PUNCT
ajst-26222	88	21	,	,	PUNCT
ajst-26222	88	22	,	,	PUNCT
ajst-26222	88	23	users	user	NOUN
ajst-26222	88	24	adds	add	VERB
ajst-26222	88	25	laplace	laplace	NOUN
ajst-26222	88	26	noise	noise	NOUN
ajst-26222	88	27	to	to	ADP
ajst-26222	88	28	the	the	DET
ajst-26222	88	29	real	real	ADJ
ajst-26222	88	30	trajectory	trajectory	NOUN
ajst-26222	88	31	several	several	ADJ
ajst-26222	88	32	times	time	NOUN
ajst-26222	88	33	,	,	PUNCT
ajst-26222	88	34	that	that	ADV
ajst-26222	88	35	is	is	ADV
ajst-26222	88	36	,	,	PUNCT
ajst-26222	88	37	,	,	PUNCT
ajst-26222	88	38	generating	generate	VERB
ajst-26222	88	39	2k	2k	NUM
ajst-26222	88	40	noisy	noisy	ADJ
ajst-26222	88	41	trajectories	trajectory	NOUN
ajst-26222	88	42	,	,	PUNCT
ajst-26222	88	43	,	,	PUNCT
ajst-26222	88	44	,	,	PUNCT
ajst-26222	88	45	,	,	PUNCT
ajst-26222	88	46	,	,	PUNCT
ajst-26222	88	47	,	,	PUNCT
ajst-26222	88	48	⋯	⋯	PROPN
ajst-26222	88	49	，	，	PROPN
ajst-26222	88	50	,	,	PUNCT
ajst-26222	88	51	,	,	PUNCT
ajst-26222	88	52	.	.	PUNCT
ajst-26222	89	1	step	step	NOUN
ajst-26222	89	2	3	3	NUM
ajst-26222	89	3	:	:	PUNCT
ajst-26222	89	4	the	the	DET
ajst-26222	89	5	user	user	NOUN
ajst-26222	89	6	calculates	calculate	VERB
ajst-26222	89	7	the	the	DET
ajst-26222	89	8	trajectory	trajectory	NOUN
ajst-26222	89	9	similarity	similarity	NOUN
ajst-26222	89	10	between	between	ADP
ajst-26222	89	11	the	the	DET
ajst-26222	89	12	real	real	ADJ
ajst-26222	89	13	and	and	CCONJ
ajst-26222	89	14	noisy	noisy	ADJ
ajst-26222	89	15	trajectories	trajectory	NOUN
ajst-26222	89	16	by	by	ADP
ajst-26222	89	17	the	the	DET
ajst-26222	89	18	trajectory	trajectory	NOUN
ajst-26222	89	19	similarity	similarity	NOUN
ajst-26222	89	20	formula	formula	NOUN
ajst-26222	89	21	∑	∑	X
ajst-26222	89	22	.	.	PUNCT
ajst-26222	90	1	step	step	NOUN
ajst-26222	90	2	4	4	NUM
ajst-26222	90	3	:	:	PUNCT
ajst-26222	91	1	the	the	DET
ajst-26222	91	2	user	user	NOUN
ajst-26222	91	3	filters	filter	VERB
ajst-26222	91	4	out	out	ADP
ajst-26222	91	5	the	the	DET
ajst-26222	91	6	top	top	ADJ
ajst-26222	91	7	1	1	NUM
ajst-26222	91	8	trajectories	trajectory	NOUN
ajst-26222	91	9	with	with	ADP
ajst-26222	91	10	high	high	ADJ
ajst-26222	91	11	similarity	similarity	NOUN
ajst-26222	91	12	according	accord	VERB
ajst-26222	91	13	to	to	ADP
ajst-26222	91	14	parameter	parameter	NOUN
ajst-26222	91	15	,	,	PUNCT
ajst-26222	91	16	corresponding	correspond	VERB
ajst-26222	91	17	to	to	ADP
ajst-26222	91	18	1	1	NUM
ajst-26222	91	19	noisy	noisy	ADJ
ajst-26222	91	20	users	user	NOUN
ajst-26222	91	21	respectively	respectively	ADV
ajst-26222	91	22	.	.	PUNCT
ajst-26222	92	1	step	step	NOUN
ajst-26222	92	2	5	5	NUM
ajst-26222	92	3	:	:	PUNCT
ajst-26222	92	4	the	the	DET
ajst-26222	92	5	1	1	NUM
ajst-26222	92	6	noise	noise	NOUN
ajst-26222	92	7	users	user	NOUN
ajst-26222	92	8	are	be	AUX
ajst-26222	92	9	registered	register	VERB
ajst-26222	92	10	separately	separately	ADV
ajst-26222	92	11	and	and	CCONJ
ajst-26222	92	12	the	the	DET
ajst-26222	92	13	lbs	lbs	NOUN
ajst-26222	92	14	server	server	NOUN
ajst-26222	92	15	generates	generate	VERB
ajst-26222	92	16	an	an	DET
ajst-26222	92	17	anonymous	anonymous	ADJ
ajst-26222	92	18	identity	identity	NOUN
ajst-26222	92	19	1	1	NUM
ajst-26222	92	20	1	1	NUM
ajst-26222	92	21	and	and	CCONJ
ajst-26222	92	22	the	the	DET
ajst-26222	92	23	corresponding	corresponding	ADJ
ajst-26222	92	24	public	public	ADJ
ajst-26222	92	25	and	and	CCONJ
ajst-26222	92	26	private	private	ADJ
ajst-26222	92	27	keys	key	NOUN
ajst-26222	92	28	for	for	ADP
ajst-26222	92	29	each	each	DET
ajst-26222	92	30	noise	noise	NOUN
ajst-26222	92	31	user	user	NOUN
ajst-26222	92	32	.	.	PUNCT
ajst-26222	93	1	step	step	VERB
ajst-26222	93	2	6	6	NUM
ajst-26222	93	3	:	:	PUNCT
ajst-26222	93	4	the	the	DET
ajst-26222	93	5	user	user	NOUN
ajst-26222	93	6	and	and	CCONJ
ajst-26222	93	7	the	the	DET
ajst-26222	93	8	1	1	NUM
ajst-26222	93	9	noise	noise	NOUN
ajst-26222	93	10	users	user	NOUN
ajst-26222	93	11	together	together	ADV
ajst-26222	93	12	form	form	VERB
ajst-26222	93	13	the	the	DET
ajst-26222	93	14	anonymous	anonymous	PROPN
ajst-26222	93	15	user	user	NOUN
ajst-26222	93	16	group	group	NOUN
ajst-26222	93	17	,	,	PUNCT
ajst-26222	93	18	which	which	PRON
ajst-26222	93	19	requests	request	VERB
ajst-26222	93	20	the	the	DET
ajst-26222	93	21	lbs	lbs	NOUN
ajst-26222	93	22	service	service	NOUN
ajst-26222	93	23	.	.	PUNCT
ajst-26222	94	1	3.4	3.4	NUM
ajst-26222	94	2	.	.	PUNCT
ajst-26222	94	3	location	location	NOUN
ajst-26222	94	4	service	service	NOUN
ajst-26222	94	5	request	request	NOUN
ajst-26222	94	6	in	in	ADP
ajst-26222	94	7	this	this	DET
ajst-26222	94	8	phase	phase	NOUN
ajst-26222	94	9	,	,	PUNCT
ajst-26222	94	10	mobile	mobile	NOUN
ajst-26222	94	11	terminal	terminal	NOUN
ajst-26222	94	12	user	user	NOUN
ajst-26222	94	13	randomly	randomly	ADV
ajst-26222	94	14	selects	select	VERB
ajst-26222	94	15	one	one	NUM
ajst-26222	94	16	user	user	NOUN
ajst-26222	94	17	as	as	ADP
ajst-26222	94	18	representative	representative	NOUN
ajst-26222	94	19	to	to	PART
ajst-26222	94	20	send	send	VERB
ajst-26222	94	21	service	service	NOUN
ajst-26222	94	22	request	request	NOUN
ajst-26222	94	23	to	to	ADP
ajst-26222	94	24	lbs	lbs	PROPN
ajst-26222	94	25	server	server	NOUN
ajst-26222	94	26	.	.	PUNCT
ajst-26222	95	1	the	the	DET
ajst-26222	95	2	steps	step	NOUN
ajst-26222	95	3	are	be	AUX
ajst-26222	95	4	as	as	SCONJ
ajst-26222	95	5	follows	follow	VERB
ajst-26222	95	6	:	:	PUNCT
ajst-26222	95	7	step	step	NOUN
ajst-26222	95	8	1	1	NUM
ajst-26222	95	9	:	:	PUNCT
ajst-26222	95	10	user	user	NOUN
ajst-26222	95	11	randomly	randomly	ADV
ajst-26222	95	12	selects	select	VERB
ajst-26222	95	13	one	one	NUM
ajst-26222	95	14	user	user	NOUN
ajst-26222	95	15	from	from	ADP
ajst-26222	95	16	the	the	DET
ajst-26222	95	17	anonymous	anonymous	PROPN
ajst-26222	95	18	user	user	NOUN
ajst-26222	95	19	group	group	NOUN
ajst-26222	95	20	as	as	ADP
ajst-26222	95	21	the	the	DET
ajst-26222	95	22	representative	representative	ADJ
ajst-26222	95	23	user	user	NOUN
ajst-26222	95	24	.	.	PUNCT
ajst-26222	96	1	the	the	DET
ajst-26222	96	2	private	private	ADJ
ajst-26222	96	3	key	key	NOUN
ajst-26222	96	4	of	of	ADP
ajst-26222	96	5	the	the	DET
ajst-26222	96	6	representative	representative	ADJ
ajst-26222	96	7	user	user	NOUN
ajst-26222	96	8	is	be	AUX
ajst-26222	96	9	,	,	PUNCT
ajst-26222	96	10	,	,	PUNCT
ajst-26222	96	11	the	the	DET
ajst-26222	96	12	public	public	ADJ
ajst-26222	96	13	key	key	NOUN
ajst-26222	96	14	is	be	AUX
ajst-26222	96	15	,	,	PUNCT
ajst-26222	96	16	∈	∈	PROPN
ajst-26222	96	17	∗	∗	NOUN
ajst-26222	96	18	is	be	AUX
ajst-26222	96	19	randomly	randomly	ADV
ajst-26222	96	20	selected	select	VERB
ajst-26222	96	21	when	when	SCONJ
ajst-26222	96	22	a	a	DET
ajst-26222	96	23	representative	representative	ADJ
ajst-26222	96	24	user	user	NOUN
ajst-26222	96	25	registers	register	NOUN
ajst-26222	96	26	,	,	PUNCT
ajst-26222	96	27	,	,	PUNCT
ajst-26222	96	28	,	,	PUNCT
ajst-26222	96	29	is	be	AUX
ajst-26222	96	30	the	the	DET
ajst-26222	96	31	message	message	NOUN
ajst-26222	96	32	returned	return	VERB
ajst-26222	96	33	from	from	ADP
ajst-26222	96	34	the	the	DET
ajst-26222	96	35	lbs	lbs	NOUN
ajst-26222	96	36	server	server	NOUN
ajst-26222	96	37	during	during	ADP
ajst-26222	96	38	registration	registration	NOUN
ajst-26222	96	39	,	,	PUNCT
ajst-26222	96	40	is	be	AUX
ajst-26222	96	41	the	the	DET
ajst-26222	96	42	request	request	NOUN
ajst-26222	96	43	message	message	NOUN
ajst-26222	96	44	.	.	PUNCT
ajst-26222	97	1	step	step	NOUN
ajst-26222	97	2	2	2	NUM
ajst-26222	97	3	:	:	PUNCT
ajst-26222	97	4	representative	representative	ADJ
ajst-26222	97	5	user	user	NOUN
ajst-26222	97	6	randomly	randomly	ADV
ajst-26222	97	7	selects	select	VERB
ajst-26222	97	8	∈	∈	PROPN
ajst-26222	97	9	∗	∗	NOUN
ajst-26222	97	10	and	and	CCONJ
ajst-26222	97	11	current	current	ADJ
ajst-26222	97	12	time	time	NOUN
ajst-26222	97	13	stamp	stamp	NOUN
ajst-26222	97	14	,	,	PUNCT
ajst-26222	97	15	and	and	CCONJ
ajst-26222	97	16	calculates	calculate	VERB
ajst-26222	97	17	,	,	PUNCT
ajst-26222	97	18	,	,	PUNCT
ajst-26222	97	19	,	,	PUNCT
ajst-26222	97	20	,	,	PUNCT
ajst-26222	97	21	,	,	PUNCT
ajst-26222	97	22	and	and	CCONJ
ajst-26222	97	23	.after	.after	NOUN
ajst-26222	97	24	this	this	PRON
ajst-26222	97	25	,	,	PUNCT
ajst-26222	97	26	and	and	CCONJ
ajst-26222	97	27	are	be	AUX
ajst-26222	97	28	sent	send	VERB
ajst-26222	97	29	to	to	ADP
ajst-26222	97	30	the	the	DET
ajst-26222	97	31	lbs	lbs	PROPN
ajst-26222	97	32	server	server	NOUN
ajst-26222	97	33	.	.	PUNCT
ajst-26222	98	1	step	step	NOUN
ajst-26222	98	2	3	3	NUM
ajst-26222	98	3	:	:	PUNCT
ajst-26222	98	4	after	after	ADP
ajst-26222	98	5	receiving	receive	VERB
ajst-26222	98	6	,	,	PUNCT
ajst-26222	98	7	and	and	CCONJ
ajst-26222	98	8	,	,	PUNCT
ajst-26222	98	9	lbs	lbs	NOUN
ajst-26222	98	10	server	server	NOUN
ajst-26222	98	11	verifies	verifie	NOUN
ajst-26222	98	12	that	that	SCONJ
ajst-26222	98	13	the	the	DET
ajst-26222	98	14	timestamp	timestamp	NOUN
ajst-26222	98	15	is	be	AUX
ajst-26222	98	16	fresh	fresh	ADJ
ajst-26222	98	17	,	,	PUNCT
ajst-26222	98	18	if	if	SCONJ
ajst-26222	98	19	so	so	ADV
ajst-26222	98	20	,	,	PUNCT
ajst-26222	98	21	proceed	proceed	VERB
ajst-26222	98	22	to	to	ADP
ajst-26222	98	23	the	the	DET
ajst-26222	98	24	next	next	ADJ
ajst-26222	98	25	step	step	NOUN
ajst-26222	98	26	;	;	PUNCT
ajst-26222	98	27	otherwise	otherwise	ADV
ajst-26222	98	28	,	,	PUNCT
ajst-26222	98	29	go	go	VERB
ajst-26222	98	30	back	back	ADV
ajst-26222	98	31	to	to	PART
ajst-26222	98	32	step	step	NOUN
ajst-26222	98	33	1	1	NUM
ajst-26222	98	34	.	.	PUNCT
ajst-26222	99	1	step	step	NOUN
ajst-26222	99	2	4	4	NUM
ajst-26222	99	3	:	:	PUNCT
ajst-26222	99	4	the	the	DET
ajst-26222	99	5	lbs	lbs	PROPN
ajst-26222	99	6	server	server	NOUN
ajst-26222	99	7	calculates	calculate	NOUN
ajst-26222	99	8	,	,	PUNCT
ajst-26222	99	9	,	,	PUNCT
ajst-26222	99	10	,	,	PUNCT
ajst-26222	99	11	,	,	PUNCT
ajst-26222	99	12	,	,	PUNCT
ajst-26222	99	13	then	then	ADV
ajst-26222	99	14	judges	judge	VERB
ajst-26222	99	15	whether	whether	SCONJ
ajst-26222	99	16	the	the	DET
ajst-26222	99	17	equation	equation	NOUN
ajst-26222	99	18	?	?	PUNCT
ajst-26222	100	1	is	be	AUX
ajst-26222	100	2	valid	valid	ADJ
ajst-26222	100	3	or	or	CCONJ
ajst-26222	100	4	not	not	PART
ajst-26222	100	5	.	.	PUNCT
ajst-26222	101	1	if	if	SCONJ
ajst-26222	101	2	the	the	DET
ajst-26222	101	3	equation	equation	NOUN
ajst-26222	101	4	is	be	AUX
ajst-26222	101	5	valid	valid	ADJ
ajst-26222	101	6	,	,	PUNCT
ajst-26222	101	7	lbs	lbs	NOUN
ajst-26222	101	8	server	server	NOUN
ajst-26222	101	9	returns	return	NOUN
ajst-26222	101	10	the	the	DET
ajst-26222	101	11	query	query	NOUN
ajst-26222	101	12	result	result	NOUN
ajst-26222	101	13	set	set	VERB
ajst-26222	101	14	1	1	NUM
ajst-26222	101	15	,	,	PUNCT
ajst-26222	101	16	2,⋯	2,⋯	NUM
ajst-26222	101	17	,	,	PUNCT
ajst-26222	101	18	to	to	ADP
ajst-26222	101	19	user	user	NOUN
ajst-26222	101	20	;	;	PUNCT
ajst-26222	101	21	otherwise	otherwise	ADV
ajst-26222	101	22	,	,	PUNCT
ajst-26222	101	23	refuses	refuse	VERB
ajst-26222	101	24	to	to	PART
ajst-26222	101	25	return	return	VERB
ajst-26222	101	26	the	the	DET
ajst-26222	101	27	query	query	NOUN
ajst-26222	101	28	result	result	NOUN
ajst-26222	101	29	set	set	VERB
ajst-26222	101	30	.	.	PUNCT
ajst-26222	102	1	step	step	NOUN
ajst-26222	102	2	5	5	NUM
ajst-26222	102	3	:	:	PUNCT
ajst-26222	102	4	after	after	ADP
ajst-26222	102	5	receiving	receive	VERB
ajst-26222	102	6	,	,	PUNCT
ajst-26222	102	7	user	user	NOUN
ajst-26222	102	8	selects	select	NOUN
ajst-26222	102	9	from	from	ADP
ajst-26222	102	10	them	they	PRON
ajst-26222	102	11	the	the	DET
ajst-26222	102	12	required	require	VERB
ajst-26222	102	13	real	real	ADJ
ajst-26222	102	14	message	message	NOUN
ajst-26222	102	15	.	.	PUNCT
ajst-26222	103	1	4	4	X
ajst-26222	103	2	.	.	X
ajst-26222	103	3	security	security	NOUN
ajst-26222	103	4	analysis	analysis	NOUN
ajst-26222	103	5	4.1	4.1	NUM
ajst-26222	103	6	.	.	PUNCT
ajst-26222	104	1	anonymity	anonymity	NOUN
ajst-26222	104	2	anonymous	anonymous	ADJ
ajst-26222	104	3	game	game	NOUN
ajst-26222	104	4	.	.	PUNCT
ajst-26222	105	1	if	if	SCONJ
ajst-26222	105	2	the	the	DET
ajst-26222	105	3	attacker	attacker	NOUN
ajst-26222	105	4	a	a	PRON
ajst-26222	105	5	wins	win	VERB
ajst-26222	105	6	the	the	DET
ajst-26222	105	7	anonymous	anonymous	ADJ
ajst-26222	105	8	game	game	NOUN
ajst-26222	105	9	with	with	ADP
ajst-26222	105	10	negligible	negligible	ADJ
ajst-26222	105	11	probability	probability	NOUN
ajst-26222	105	12	in	in	ADP
ajst-26222	105	13	polynomial	polynomial	ADJ
ajst-26222	105	14	time	time	NOUN
ajst-26222	105	15	,	,	PUNCT
ajst-26222	105	16	the	the	DET
ajst-26222	105	17	scheme	scheme	NOUN
ajst-26222	105	18	satisfies	satisfy	VERB
ajst-26222	105	19	the	the	DET
ajst-26222	105	20	anonymity	anonymity	NOUN
ajst-26222	105	21	.	.	PUNCT
ajst-26222	106	1	anonymous	anonymous	ADJ
ajst-26222	106	2	game	game	NOUN
ajst-26222	106	3	is	be	AUX
ajst-26222	106	4	descried	descry	VERB
ajst-26222	106	5	as	as	ADP
ajst-26222	106	6	follows	follow	VERB
ajst-26222	106	7	:	:	PUNCT
ajst-26222	106	8	step	step	NOUN
ajst-26222	106	9	1	1	NUM
ajst-26222	106	10	:	:	PUNCT
ajst-26222	106	11	challenger	challenger	NOUN
ajst-26222	106	12	c	c	NOUN
ajst-26222	106	13	provided	provide	VERB
ajst-26222	106	14	system	system	NOUN
ajst-26222	106	15	parameters	parameter	NOUN
ajst-26222	106	16	,	,	PUNCT
ajst-26222	106	17	,	,	PUNCT
ajst-26222	106	18	,	,	PUNCT
ajst-26222	106	19	,	,	PUNCT
ajst-26222	106	20	,	,	PUNCT
ajst-26222	106	21	,	,	PUNCT
ajst-26222	106	22	,	,	PUNCT
ajst-26222	106	23	,	,	PUNCT
ajst-26222	106	24	,	,	PUNCT
ajst-26222	106	25	to	to	PART
ajst-26222	106	26	attacker	attacker	VERB
ajst-26222	106	27	a.	a.	NOUN
ajst-26222	106	28	step	step	NOUN
ajst-26222	106	29	2	2	NUM
ajst-26222	106	30	:	:	PUNCT
ajst-26222	106	31	attacker	attacker	PROPN
ajst-26222	106	32	a	a	PRON
ajst-26222	106	33	chooses	choose	VERB
ajst-26222	106	34	two	two	NUM
ajst-26222	106	35	different	different	ADJ
ajst-26222	106	36	messages	message	NOUN
ajst-26222	106	37	,	,	PUNCT
ajst-26222	106	38	.	.	PUNCT
ajst-26222	107	1	step	step	NOUN
ajst-26222	107	2	3	3	NUM
ajst-26222	107	3	:	:	PUNCT
ajst-26222	107	4	challenger	challenger	NOUN
ajst-26222	107	5	c	c	NOUN
ajst-26222	107	6	randomly	randomly	ADV
ajst-26222	107	7	selects	select	VERB
ajst-26222	107	8	∈	∈	NOUN
ajst-26222	107	9	0,1	0,1	NUM
ajst-26222	107	10	,	,	PUNCT
ajst-26222	107	11	b	b	NOUN
ajst-26222	107	12	keeps	keep	VERB
ajst-26222	107	13	the	the	DET
ajst-26222	107	14	attacker	attacker	NOUN
ajst-26222	107	15	a	a	DET
ajst-26222	107	16	secret	secret	NOUN
ajst-26222	107	17	.	.	PUNCT
ajst-26222	108	1	then	then	ADV
ajst-26222	108	2	send	send	VERB
ajst-26222	108	3	and	and	CCONJ
ajst-26222	108	4	to	to	ADP
ajst-26222	108	5	two	two	NUM
ajst-26222	108	6	users	user	NOUN
ajst-26222	108	7	and	and	CCONJ
ajst-26222	108	8	.	.	PUNCT
ajst-26222	109	1	step	step	NOUN
ajst-26222	109	2	4	4	NUM
ajst-26222	109	3	:	:	PUNCT
ajst-26222	109	4	users	user	NOUN
ajst-26222	109	5	and	and	CCONJ
ajst-26222	109	6	construct	construct	VERB
ajst-26222	109	7	signatures	signature	NOUN
ajst-26222	109	8	,	,	PUNCT
ajst-26222	109	9	and	and	CCONJ
ajst-26222	109	10	,	,	PUNCT
ajst-26222	109	11	based	base	VERB
ajst-26222	109	12	on	on	ADP
ajst-26222	109	13	and	and	CCONJ
ajst-26222	109	14	,	,	PUNCT
ajst-26222	109	15	respectively	respectively	ADV
ajst-26222	109	16	.	.	PUNCT
ajst-26222	110	1	step	step	NOUN
ajst-26222	110	2	5	5	NUM
ajst-26222	110	3	:	:	PUNCT
ajst-26222	110	4	if	if	SCONJ
ajst-26222	110	5	the	the	DET
ajst-26222	110	6	signatures	signature	NOUN
ajst-26222	110	7	,	,	PUNCT
ajst-26222	110	8	and	and	CCONJ
ajst-26222	110	9	,	,	PUNCT
ajst-26222	110	10	generated	generate	VERB
ajst-26222	110	11	by	by	ADP
ajst-26222	110	12	and	and	CCONJ
ajst-26222	110	13	u2	u2	PROPN
ajst-26222	110	14	correspond	correspond	NOUN
ajst-26222	110	15	to	to	ADP
ajst-26222	110	16	the	the	DET
ajst-26222	110	17	messages	message	NOUN
ajst-26222	110	18	and	and	CCONJ
ajst-26222	110	19	.	.	PUNCT
ajst-26222	111	1	step	step	NOUN
ajst-26222	111	2	6	6	NUM
ajst-26222	111	3	:	:	PUNCT
ajst-26222	111	4	attacker	attacker	NOUN
ajst-26222	111	5	a	a	DET
ajst-26222	111	6	outputs	output	NOUN
ajst-26222	111	7	′	′	NUM
ajst-26222	111	8	∈	∈	NOUN
ajst-26222	111	9	0,1	0,1	NUM
ajst-26222	111	10	as	as	ADP
ajst-26222	111	11	a	a	DET
ajst-26222	111	12	guess	guess	NOUN
ajst-26222	111	13	for	for	ADP
ajst-26222	111	14	,	,	PUNCT
ajst-26222	111	15	if	if	SCONJ
ajst-26222	111	16	′	′	NUM
ajst-26222	111	17	,	,	PUNCT
ajst-26222	111	18	attacker	attacker	PROPN
ajst-26222	111	19	a	a	DET
ajst-26222	111	20	wins	win	NOUN
ajst-26222	111	21	the	the	DET
ajst-26222	111	22	anonymous	anonymous	ADJ
ajst-26222	111	23	game	game	NOUN
ajst-26222	111	24	.	.	PUNCT
ajst-26222	112	1	224	224	NUM
ajst-26222	112	2	proof	proof	NOUN
ajst-26222	112	3	:	:	PUNCT
ajst-26222	112	4	the	the	DET
ajst-26222	112	5	user	user	NOUN
ajst-26222	112	6	identity	identity	NOUN
ajst-26222	112	7	is	be	AUX
ajst-26222	112	8	encrypted	encrypt	VERB
ajst-26222	112	9	with	with	ADP
ajst-26222	112	10	a	a	DET
ajst-26222	112	11	hash	hash	NOUN
ajst-26222	112	12	function	function	NOUN
ajst-26222	112	13	during	during	ADP
ajst-26222	112	14	the	the	DET
ajst-26222	112	15	registration	registration	NOUN
ajst-26222	112	16	process	process	NOUN
ajst-26222	112	17	to	to	PART
ajst-26222	112	18	generate	generate	VERB
ajst-26222	112	19	a	a	DET
ajst-26222	112	20	fake	fake	ADJ
ajst-26222	112	21	identity	identity	NOUN
ajst-26222	112	22	||	||	NOUN
ajst-26222	112	23	,	,	PUNCT
ajst-26222	112	24	due	due	ADP
ajst-26222	112	25	to	to	ADP
ajst-26222	112	26	the	the	DET
ajst-26222	112	27	one	one	NUM
ajst-26222	112	28	-	-	PUNCT
ajst-26222	112	29	way	way	NOUN
ajst-26222	112	30	nature	nature	NOUN
ajst-26222	112	31	of	of	ADP
ajst-26222	112	32	the	the	DET
ajst-26222	112	33	hash	hash	NOUN
ajst-26222	112	34	function	function	NOUN
ajst-26222	112	35	,	,	PUNCT
ajst-26222	112	36	it	it	PRON
ajst-26222	112	37	is	be	AUX
ajst-26222	112	38	difficult	difficult	ADJ
ajst-26222	112	39	for	for	SCONJ
ajst-26222	112	40	the	the	DET
ajst-26222	112	41	attacker	attacker	NOUN
ajst-26222	112	42	a	a	PRON
ajst-26222	112	43	to	to	PART
ajst-26222	112	44	infer	infer	VERB
ajst-26222	112	45	the	the	DET
ajst-26222	112	46	real	real	ADJ
ajst-26222	112	47	identity	identity	NOUN
ajst-26222	112	48	of	of	ADP
ajst-26222	112	49	the	the	DET
ajst-26222	112	50	user	user	NOUN
ajst-26222	112	51	from	from	ADP
ajst-26222	112	52	the	the	PRON
ajst-26222	112	53	.	.	PUNCT
ajst-26222	113	1	at	at	ADP
ajst-26222	113	2	the	the	DET
ajst-26222	113	3	same	same	ADJ
ajst-26222	113	4	time	time	NOUN
ajst-26222	113	5	,	,	PUNCT
ajst-26222	113	6	if	if	SCONJ
ajst-26222	113	7	the	the	DET
ajst-26222	113	8	attacker	attacker	NOUN
ajst-26222	113	9	tries	try	VERB
ajst-26222	113	10	to	to	PART
ajst-26222	113	11	obtain	obtain	VERB
ajst-26222	113	12	the	the	DET
ajst-26222	113	13	user	user	NOUN
ajst-26222	113	14	’s	’s	PART
ajst-26222	113	15	private	private	ADJ
ajst-26222	113	16	information	information	NOUN
ajst-26222	113	17	through	through	ADP
ajst-26222	113	18	the	the	DET
ajst-26222	113	19	message	message	NOUN
ajst-26222	113	20	,	,	PUNCT
ajst-26222	113	21	,	,	PUNCT
ajst-26222	113	22	then	then	ADV
ajst-26222	113	23	must	must	AUX
ajst-26222	113	24	be	be	AUX
ajst-26222	113	25	solved	solve	VERB
ajst-26222	113	26	by	by	ADP
ajst-26222	113	27	pub	pub	NOUN
ajst-26222	113	28	and	and	CCONJ
ajst-26222	113	29	solved	solve	VERB
ajst-26222	113	30	,	,	PUNCT
ajst-26222	113	31	by	by	ADV
ajst-26222	113	32	and	and	CCONJ
ajst-26222	113	33	,	,	PUNCT
ajst-26222	113	34	that	that	ADV
ajst-26222	113	35	is	is	ADV
ajst-26222	113	36	,	,	PUNCT
ajst-26222	113	37	the	the	DET
ajst-26222	113	38	attacker	attacker	NOUN
ajst-26222	113	39	must	must	AUX
ajst-26222	113	40	obtain	obtain	VERB
ajst-26222	113	41	the	the	DET
ajst-26222	113	42	system	system	NOUN
ajst-26222	113	43	key	key	NOUN
ajst-26222	113	44	,	,	PUNCT
ajst-26222	113	45	the	the	DET
ajst-26222	113	46	user	user	NOUN
ajst-26222	113	47	's	's	PART
ajst-26222	113	48	private	private	ADJ
ajst-26222	113	49	key	key	NOUN
ajst-26222	113	50	,	,	PUNCT
ajst-26222	113	51	and	and	CCONJ
ajst-26222	113	52	a	a	DET
ajst-26222	113	53	random	random	ADJ
ajst-26222	113	54	number	number	NOUN
ajst-26222	113	55	.	.	PUNCT
ajst-26222	114	1	solving	solve	VERB
ajst-26222	114	2	the	the	DET
ajst-26222	114	3	above	above	ADJ
ajst-26222	114	4	problem	problem	NOUN
ajst-26222	114	5	is	be	AUX
ajst-26222	114	6	faced	face	VERB
ajst-26222	114	7	with	with	ADP
ajst-26222	114	8	the	the	DET
ajst-26222	114	9	difficult	difficult	ADJ
ajst-26222	114	10	problem	problem	NOUN
ajst-26222	114	11	of	of	ADP
ajst-26222	114	12	solving	solve	VERB
ajst-26222	114	13	the	the	DET
ajst-26222	114	14	discrete	discrete	ADJ
ajst-26222	114	15	logarithm	logarithm	NOUN
ajst-26222	114	16	of	of	ADP
ajst-26222	114	17	elliptic	elliptic	ADJ
ajst-26222	114	18	curve	curve	NOUN
ajst-26222	114	19	.	.	PUNCT
ajst-26222	115	1	it	it	PRON
ajst-26222	115	2	is	be	AUX
ajst-26222	115	3	computationally	computationally	ADV
ajst-26222	115	4	infeasible	infeasible	ADJ
ajst-26222	115	5	,	,	PUNCT
ajst-26222	115	6	so	so	SCONJ
ajst-26222	115	7	the	the	DET
ajst-26222	115	8	advantage	advantage	NOUN
ajst-26222	115	9	of	of	ADP
ajst-26222	115	10	attacker	attacker	PROPN
ajst-26222	115	11	a	a	PRON
ajst-26222	115	12	to	to	PART
ajst-26222	115	13	win	win	VERB
ajst-26222	115	14	the	the	DET
ajst-26222	115	15	game	game	NOUN
ajst-26222	116	1	|	|	ADV
ajst-26222	116	2	′	′	NUM
ajst-26222	117	1	|	|	ADV
ajst-26222	117	2	is	be	AUX
ajst-26222	117	3	negligible	negligible	ADJ
ajst-26222	117	4	,	,	PUNCT
ajst-26222	117	5	that	that	ADV
ajst-26222	117	6	is	is	ADV
ajst-26222	117	7	,	,	PUNCT
ajst-26222	117	8	the	the	DET
ajst-26222	117	9	solution	solution	NOUN
ajst-26222	117	10	satisfies	satisfy	VERB
ajst-26222	117	11	anonymity	anonymity	NOUN
ajst-26222	117	12	.	.	PUNCT
ajst-26222	118	1	4.2	4.2	NUM
ajst-26222	118	2	.	.	PUNCT
ajst-26222	118	3	unforgeability	unforgeability	NOUN
ajst-26222	118	4	in	in	ADP
ajst-26222	118	5	the	the	DET
ajst-26222	118	6	random	random	ADJ
ajst-26222	118	7	oracle	oracle	NOUN
ajst-26222	118	8	model	model	NOUN
ajst-26222	118	9	(	(	PUNCT
ajst-26222	118	10	rom	rom	NOUN
ajst-26222	118	11	)	)	PUNCT
ajst-26222	118	12	,	,	PUNCT
ajst-26222	118	13	if	if	SCONJ
ajst-26222	118	14	the	the	DET
ajst-26222	118	15	attacker	attacker	NOUN
ajst-26222	118	16	a	a	PRON
ajst-26222	118	17	is	be	AUX
ajst-26222	118	18	unable	unable	ADJ
ajst-26222	118	19	to	to	PART
ajst-26222	118	20	fake	fake	VERB
ajst-26222	118	21	the	the	DET
ajst-26222	118	22	lbs	lbs	NOUN
ajst-26222	118	23	server	server	NOUN
ajst-26222	118	24	to	to	PART
ajst-26222	118	25	forge	forge	NOUN
ajst-26222	118	26	user	user	NOUN
ajst-26222	118	27	registration	registration	NOUN
ajst-26222	118	28	information	information	NOUN
ajst-26222	118	29	in	in	ADP
ajst-26222	118	30	polynomial	polynomial	ADJ
ajst-26222	118	31	time	time	NOUN
ajst-26222	118	32	,	,	PUNCT
ajst-26222	118	33	the	the	DET
ajst-26222	118	34	solution	solution	NOUN
ajst-26222	118	35	meets	meet	VERB
ajst-26222	118	36	the	the	DET
ajst-26222	118	37	unforgeability	unforgeability	NOUN
ajst-26222	118	38	.	.	PUNCT
ajst-26222	119	1	the	the	DET
ajst-26222	119	2	following	follow	VERB
ajst-26222	119	3	is	be	AUX
ajst-26222	119	4	the	the	DET
ajst-26222	119	5	proof	proof	NOUN
ajst-26222	119	6	:	:	PUNCT
ajst-26222	119	7	proof	proof	NOUN
ajst-26222	119	8	:	:	PUNCT
ajst-26222	119	9	assuming	assume	VERB
ajst-26222	119	10	that	that	SCONJ
ajst-26222	119	11	the	the	DET
ajst-26222	119	12	attacker	attacker	NOUN
ajst-26222	119	13	a	a	PRON
ajst-26222	119	14	can	can	AUX
ajst-26222	119	15	forge	forge	VERB
ajst-26222	119	16	the	the	DET
ajst-26222	119	17	user	user	NOUN
ajst-26222	119	18	registration	registration	NOUN
ajst-26222	119	19	information	information	NOUN
ajst-26222	119	20	with	with	ADP
ajst-26222	119	21	a	a	DET
ajst-26222	119	22	non	non	ADJ
ajst-26222	119	23	-	-	ADJ
ajst-26222	119	24	negligible	negligible	ADJ
ajst-26222	119	25	probability	probability	NOUN
ajst-26222	119	26	in	in	ADP
ajst-26222	119	27	polynomial	polynomial	ADJ
ajst-26222	119	28	time	time	NOUN
ajst-26222	119	29	,	,	PUNCT
ajst-26222	119	30	that	that	ADV
ajst-26222	119	31	is	is	ADV
ajst-26222	119	32	,	,	PUNCT
ajst-26222	119	33	the	the	DET
ajst-26222	119	34	attacker	attacker	NOUN
ajst-26222	119	35	a	a	PRON
ajst-26222	119	36	can	can	AUX
ajst-26222	119	37	calculate	calculate	VERB
ajst-26222	119	38	the	the	DET
ajst-26222	119	39	system	system	NOUN
ajst-26222	119	40	key	key	NOUN
ajst-26222	119	41	with	with	ADP
ajst-26222	119	42	a	a	DET
ajst-26222	119	43	non	non	ADJ
ajst-26222	119	44	-	-	ADJ
ajst-26222	119	45	negligible	negligible	ADJ
ajst-26222	119	46	probability	probability	NOUN
ajst-26222	119	47	in	in	ADP
ajst-26222	119	48	polynomial	polynomial	ADJ
ajst-26222	119	49	time	time	NOUN
ajst-26222	119	50	,	,	PUNCT
ajst-26222	119	51	and	and	CCONJ
ajst-26222	119	52	finally	finally	ADV
ajst-26222	119	53	the	the	DET
ajst-26222	119	54	equation	equation	NOUN
ajst-26222	119	55	is	be	AUX
ajst-26222	119	56	established	establish	VERB
ajst-26222	119	57	.	.	PUNCT
ajst-26222	120	1	setup	setup	NOUN
ajst-26222	120	2	:	:	PUNCT
ajst-26222	120	3	challenger	challenger	NOUN
ajst-26222	120	4	c	c	NOUN
ajst-26222	120	5	performs	perform	VERB
ajst-26222	120	6	system	system	NOUN
ajst-26222	120	7	initialization	initialization	NOUN
ajst-26222	120	8	,	,	PUNCT
ajst-26222	120	9	sends	send	VERB
ajst-26222	120	10	system	system	NOUN
ajst-26222	120	11	public	public	ADJ
ajst-26222	120	12	parameters	parameter	NOUN
ajst-26222	120	13	to	to	PART
ajst-26222	120	14	attacker	attacker	VERB
ajst-26222	120	15	a	a	PRON
ajst-26222	120	16	,	,	PUNCT
ajst-26222	120	17	and	and	CCONJ
ajst-26222	120	18	runs	run	VERB
ajst-26222	120	19	a	a	DET
ajst-26222	120	20	key	key	ADJ
ajst-26222	120	21	generation	generation	NOUN
ajst-26222	120	22	algorithm	algorithm	NOUN
ajst-26222	120	23	to	to	PART
ajst-26222	120	24	generate	generate	VERB
ajst-26222	120	25	the	the	DET
ajst-26222	120	26	sender	sender	NOUN
ajst-26222	120	27	's	's	PART
ajst-26222	120	28	public	public	ADJ
ajst-26222	120	29	-	-	PUNCT
ajst-26222	120	30	private	private	ADJ
ajst-26222	120	31	key	key	ADJ
ajst-26222	120	32	pair	pair	NOUN
ajst-26222	120	33	,	,	PUNCT
ajst-26222	120	34	,	,	PUNCT
ajst-26222	120	35	and	and	CCONJ
ajst-26222	120	36	sends	send	VERB
ajst-26222	120	37	the	the	DET
ajst-26222	120	38	public	public	ADJ
ajst-26222	120	39	key	key	NOUN
ajst-26222	120	40	to	to	ADP
ajst-26222	120	41	attacker	attacker	PROPN
ajst-26222	120	42	a.	a.	NOUN
ajst-26222	120	43	query	query	NOUN
ajst-26222	120	44	:	:	PUNCT
ajst-26222	120	45	attacker	attacker	PROPN
ajst-26222	120	46	a	a	DET
ajst-26222	120	47	performs	perform	VERB
ajst-26222	120	48	a	a	DET
ajst-26222	120	49	polynomial	polynomial	ADJ
ajst-26222	120	50	bounded	bounded	ADJ
ajst-26222	120	51	subadaptive	subadaptive	ADJ
ajst-26222	120	52	oracle	oracle	PROPN
ajst-26222	120	53	query	query	NOUN
ajst-26222	120	54	.	.	PUNCT
ajst-26222	121	1	the	the	DET
ajst-26222	121	2	following	following	NOUN
ajst-26222	121	3	shows	show	VERB
ajst-26222	121	4	the	the	DET
ajst-26222	121	5	type	type	NOUN
ajst-26222	121	6	of	of	ADP
ajst-26222	121	7	query	query	NOUN
ajst-26222	121	8	of	of	ADP
ajst-26222	121	9	attacker	attacker	PROPN
ajst-26222	121	10	a.	a.	NOUN
ajst-26222	121	11	1	1	NUM
ajst-26222	121	12	)	)	PUNCT
ajst-26222	121	13	hash	hash	NOUN
ajst-26222	121	14	query	query	NOUN
ajst-26222	121	15	:	:	PUNCT
ajst-26222	121	16	attacker	attacker	NOUN
ajst-26222	121	17	a	a	DET
ajst-26222	121	18	performs	perform	VERB
ajst-26222	121	19	a	a	DET
ajst-26222	121	20	hash	hash	NOUN
ajst-26222	121	21	value	value	NOUN
ajst-26222	121	22	query	query	NOUN
ajst-26222	121	23	,	,	PUNCT
ajst-26222	121	24	and	and	CCONJ
ajst-26222	121	25	challenger	challenger	NOUN
ajst-26222	121	26	c	c	NOUN
ajst-26222	121	27	returns	return	VERB
ajst-26222	121	28	the	the	DET
ajst-26222	121	29	relative	relative	ADJ
ajst-26222	121	30	hash	hash	NOUN
ajst-26222	121	31	value	value	NOUN
ajst-26222	121	32	to	to	PART
ajst-26222	121	33	attacker	attacker	VERB
ajst-26222	121	34	a.	a.	NOUN
ajst-26222	121	35	2	2	NUM
ajst-26222	121	36	)	)	PUNCT
ajst-26222	121	37	private	private	ADJ
ajst-26222	121	38	key	key	ADJ
ajst-26222	121	39	extraction	extraction	NOUN
ajst-26222	121	40	query	query	NOUN
ajst-26222	121	41	:	:	PUNCT
ajst-26222	121	42	attacker	attacker	NOUN
ajst-26222	121	43	a	a	DET
ajst-26222	121	44	selects	select	NOUN
ajst-26222	121	45	an	an	DET
ajst-26222	121	46	attribute	attribute	NOUN
ajst-26222	121	47	set	set	VERB
ajst-26222	121	48	according	accord	VERB
ajst-26222	121	49	to	to	ADP
ajst-26222	121	50	his	his	PRON
ajst-26222	121	51	needs	need	NOUN
ajst-26222	121	52	,	,	PUNCT
ajst-26222	121	53	and	and	CCONJ
ajst-26222	121	54	asks	ask	VERB
ajst-26222	121	55	challenger	challenger	NOUN
ajst-26222	121	56	c	c	NOUN
ajst-26222	121	57	for	for	ADP
ajst-26222	121	58	the	the	DET
ajst-26222	121	59	private	private	ADJ
ajst-26222	121	60	key	key	NOUN
ajst-26222	121	61	of	of	ADP
ajst-26222	121	62	the	the	DET
ajst-26222	121	63	corresponding	corresponding	ADJ
ajst-26222	121	64	user	user	NOUN
ajst-26222	121	65	.	.	PUNCT
ajst-26222	122	1	challenger	challenger	NOUN
ajst-26222	122	2	c	c	PROPN
ajst-26222	122	3	generates	generate	VERB
ajst-26222	122	4	a	a	DET
ajst-26222	122	5	public	public	ADJ
ajst-26222	122	6	-	-	PUNCT
ajst-26222	122	7	private	private	ADJ
ajst-26222	122	8	key	key	ADJ
ajst-26222	122	9	pair	pair	NOUN
ajst-26222	122	10	,	,	PUNCT
ajst-26222	122	11	according	accord	VERB
ajst-26222	122	12	to	to	ADP
ajst-26222	122	13	the	the	DET
ajst-26222	122	14	key	key	ADJ
ajst-26222	122	15	generation	generation	NOUN
ajst-26222	122	16	algorithm	algorithm	NOUN
ajst-26222	122	17	,	,	PUNCT
ajst-26222	122	18	and	and	CCONJ
ajst-26222	122	19	sends	send	VERB
ajst-26222	122	20	,	,	PUNCT
ajst-26222	122	21	to	to	PART
ajst-26222	122	22	attacker	attacker	VERB
ajst-26222	122	23	a.	a.	NOUN
ajst-26222	122	24	3	3	NUM
ajst-26222	122	25	)	)	PUNCT
ajst-26222	122	26	signature	signature	NOUN
ajst-26222	122	27	query	query	NOUN
ajst-26222	122	28	:	:	PUNCT
ajst-26222	122	29	the	the	DET
ajst-26222	122	30	attacker	attacker	NOUN
ajst-26222	122	31	a	a	DET
ajst-26222	122	32	asks	ask	VERB
ajst-26222	122	33	the	the	DET
ajst-26222	122	34	challenger	challenger	NOUN
ajst-26222	122	35	c	c	NOUN
ajst-26222	122	36	for	for	ADP
ajst-26222	122	37	the	the	DET
ajst-26222	122	38	signature	signature	NOUN
ajst-26222	122	39	of	of	ADP
ajst-26222	122	40	the	the	DET
ajst-26222	122	41	message	message	NOUN
ajst-26222	122	42	m	m	VERB
ajst-26222	122	43	under	under	ADP
ajst-26222	122	44	the	the	DET
ajst-26222	122	45	attribute	attribute	NOUN
ajst-26222	122	46	set	set	VERB
ajst-26222	122	47	and	and	CCONJ
ajst-26222	122	48	the	the	DET
ajst-26222	122	49	receiver	receiver	ADJ
ajst-26222	122	50	attribute	attribute	NOUN
ajst-26222	122	51	set	set	VERB
ajst-26222	122	52	.	.	PUNCT
ajst-26222	123	1	the	the	DET
ajst-26222	123	2	challenger	challenger	NOUN
ajst-26222	123	3	c	c	PROPN
ajst-26222	123	4	runs	run	VERB
ajst-26222	123	5	the	the	DET
ajst-26222	123	6	signature	signature	NOUN
ajst-26222	123	7	algorithm	algorithm	NOUN
ajst-26222	123	8	,	,	PUNCT
ajst-26222	123	9	generates	generate	VERB
ajst-26222	123	10	the	the	DET
ajst-26222	123	11	corresponding	correspond	VERB
ajst-26222	123	12	signature	signature	NOUN
ajst-26222	123	13	and	and	CCONJ
ajst-26222	123	14	returns	return	VERB
ajst-26222	123	15	it	it	PRON
ajst-26222	123	16	to	to	ADP
ajst-26222	123	17	the	the	DET
ajst-26222	123	18	attacker	attacker	PROPN
ajst-26222	123	19	a.	a.	NOUN
ajst-26222	123	20	4	4	NUM
ajst-26222	123	21	)	)	PUNCT
ajst-26222	123	22	verification	verification	NOUN
ajst-26222	123	23	query	query	NOUN
ajst-26222	123	24	:	:	PUNCT
ajst-26222	123	25	after	after	ADP
ajst-26222	123	26	receiving	receive	VERB
ajst-26222	123	27	the	the	DET
ajst-26222	123	28	signature	signature	NOUN
ajst-26222	123	29	and	and	CCONJ
ajst-26222	123	30	the	the	DET
ajst-26222	123	31	message	message	NOUN
ajst-26222	123	32	from	from	ADP
ajst-26222	123	33	the	the	DET
ajst-26222	123	34	attacker	attacker	NOUN
ajst-26222	123	35	a	a	NOUN
ajst-26222	123	36	,	,	PUNCT
ajst-26222	123	37	the	the	DET
ajst-26222	123	38	challenger	challenger	NOUN
ajst-26222	123	39	c	c	NOUN
ajst-26222	123	40	runs	run	VERB
ajst-26222	123	41	the	the	DET
ajst-26222	123	42	verification	verification	NOUN
ajst-26222	123	43	algorithm	algorithm	NOUN
ajst-26222	123	44	.	.	PUNCT
ajst-26222	124	1	if	if	SCONJ
ajst-26222	124	2	the	the	DET
ajst-26222	124	3	verification	verification	NOUN
ajst-26222	124	4	is	be	AUX
ajst-26222	124	5	successful	successful	ADJ
ajst-26222	124	6	,	,	PUNCT
ajst-26222	124	7	it	it	PRON
ajst-26222	124	8	returns	return	VERB
ajst-26222	124	9	;	;	PUNCT
ajst-26222	124	10	otherwise	otherwise	ADV
ajst-26222	124	11	,	,	PUNCT
ajst-26222	124	12	it	it	PRON
ajst-26222	124	13	returns	return	VERB
ajst-26222	124	14	.	.	PUNCT
ajst-26222	125	1	challenge	challenge	NOUN
ajst-26222	125	2	:	:	PUNCT
ajst-26222	125	3	attacker	attacker	PROPN
ajst-26222	125	4	a	a	DET
ajst-26222	125	5	generates	generate	VERB
ajst-26222	125	6	a	a	DET
ajst-26222	125	7	signature	signature	NOUN
ajst-26222	125	8	∗	∗	NOUN
ajst-26222	125	9	with	with	ADP
ajst-26222	125	10	attribute	attribute	NOUN
ajst-26222	125	11	set	set	VERB
ajst-26222	125	12	′	′	NOUN
ajst-26222	125	13	and	and	CCONJ
ajst-26222	125	14	receiver	receiver	ADJ
ajst-26222	125	15	attribute	attribute	NOUN
ajst-26222	125	16	.	.	PUNCT
ajst-26222	126	1	if	if	SCONJ
ajst-26222	126	2	the	the	DET
ajst-26222	126	3	verification	verification	NOUN
ajst-26222	126	4	query	query	NOUN
ajst-26222	126	5	result	result	NOUN
ajst-26222	126	6	of	of	ADP
ajst-26222	126	7	is	be	AUX
ajst-26222	126	8	not	not	PART
ajst-26222	126	9	and	and	CCONJ
ajst-26222	126	10	,	,	PUNCT
ajst-26222	126	11	′	′	NOUN
ajst-26222	126	12	,	,	PUNCT
ajst-26222	126	13	is	be	AUX
ajst-26222	126	14	not	not	PART
ajst-26222	126	15	asked	ask	VERB
ajst-26222	126	16	by	by	ADP
ajst-26222	126	17	the	the	DET
ajst-26222	126	18	signature	signature	NOUN
ajst-26222	126	19	,	,	PUNCT
ajst-26222	126	20	attacker	attacker	NOUN
ajst-26222	126	21	a	a	DET
ajst-26222	126	22	wins	win	VERB
ajst-26222	126	23	the	the	DET
ajst-26222	126	24	unforgeable	unforgeable	ADJ
ajst-26222	126	25	game	game	NOUN
ajst-26222	126	26	.	.	PUNCT
ajst-26222	127	1	guess	guess	NOUN
ajst-26222	127	2	:	:	PUNCT
ajst-26222	127	3	attacker	attacker	PROPN
ajst-26222	127	4	a	a	DET
ajst-26222	127	5	fakes	fake	NOUN
ajst-26222	127	6	a	a	DET
ajst-26222	127	7	trusted	trust	VERB
ajst-26222	127	8	anonymous	anonymous	ADJ
ajst-26222	127	9	server	server	NOUN
ajst-26222	127	10	to	to	PART
ajst-26222	127	11	forge	forge	NOUN
ajst-26222	127	12	user	user	NOUN
ajst-26222	127	13	registration	registration	NOUN
ajst-26222	127	14	information	information	NOUN
ajst-26222	127	15	.	.	PUNCT
ajst-26222	128	1	during	during	ADP
ajst-26222	128	2	the	the	DET
ajst-26222	128	3	inquiry	inquiry	NOUN
ajst-26222	128	4	process	process	NOUN
ajst-26222	128	5	,	,	PUNCT
ajst-26222	128	6	because	because	SCONJ
ajst-26222	128	7	attacker	attacker	PROPN
ajst-26222	128	8	a	a	PRON
ajst-26222	128	9	can	can	AUX
ajst-26222	128	10	not	not	PART
ajst-26222	128	11	obtain	obtain	VERB
ajst-26222	128	12	the	the	DET
ajst-26222	128	13	system	system	NOUN
ajst-26222	128	14	master	master	NOUN
ajst-26222	128	15	key	key	NOUN
ajst-26222	128	16	,	,	PUNCT
ajst-26222	128	17	the	the	DET
ajst-26222	128	18	equation	equation	NOUN
ajst-26222	128	19	can	can	AUX
ajst-26222	128	20	not	not	PART
ajst-26222	128	21	be	be	AUX
ajst-26222	128	22	established	establish	VERB
ajst-26222	128	23	.	.	PUNCT
ajst-26222	129	1	if	if	SCONJ
ajst-26222	129	2	the	the	DET
ajst-26222	129	3	attacker	attacker	NOUN
ajst-26222	129	4	a	a	PRON
ajst-26222	129	5	tries	try	VERB
ajst-26222	129	6	to	to	PART
ajst-26222	129	7	obtain	obtain	VERB
ajst-26222	129	8	the	the	DET
ajst-26222	129	9	system	system	NOUN
ajst-26222	129	10	master	master	NOUN
ajst-26222	129	11	key	key	NOUN
ajst-26222	129	12	,	,	PUNCT
ajst-26222	129	13	he	he	PRON
ajst-26222	129	14	needs	need	VERB
ajst-26222	129	15	to	to	PART
ajst-26222	129	16	derive	derive	VERB
ajst-26222	129	17	the	the	DET
ajst-26222	129	18	private	private	ADJ
ajst-26222	129	19	key	key	NOUN
ajst-26222	129	20	through	through	ADP
ajst-26222	129	21	the	the	DET
ajst-26222	129	22	equation	equation	NOUN
ajst-26222	129	23	.	.	PUNCT
ajst-26222	130	1	the	the	DET
ajst-26222	130	2	solving	solving	NOUN
ajst-26222	130	3	problem	problem	NOUN
ajst-26222	130	4	is	be	AUX
ajst-26222	130	5	equivalent	equivalent	ADJ
ajst-26222	130	6	to	to	ADP
ajst-26222	130	7	solving	solve	VERB
ajst-26222	130	8	the	the	DET
ajst-26222	130	9	elliptic	elliptic	ADJ
ajst-26222	130	10	curve	curve	NOUN
ajst-26222	130	11	discrete	discrete	ADJ
ajst-26222	130	12	logarithm	logarithm	NOUN
ajst-26222	130	13	problem	problem	NOUN
ajst-26222	130	14	,	,	PUNCT
ajst-26222	130	15	that	that	ADV
ajst-26222	130	16	is	is	ADV
ajst-26222	130	17	,	,	PUNCT
ajst-26222	130	18	the	the	DET
ajst-26222	130	19	attacker	attacker	NOUN
ajst-26222	130	20	a	a	PRON
ajst-26222	130	21	can	can	AUX
ajst-26222	130	22	not	not	PART
ajst-26222	130	23	be	be	AUX
ajst-26222	130	24	in	in	ADP
ajst-26222	130	25	polynomial	polynomial	ADJ
ajst-26222	130	26	time	time	NOUN
ajst-26222	130	27	.	.	PUNCT
ajst-26222	131	1	ignore	ignore	VERB
ajst-26222	131	2	the	the	DET
ajst-26222	131	3	probability	probability	NOUN
ajst-26222	131	4	to	to	PART
ajst-26222	131	5	solve	solve	VERB
ajst-26222	131	6	the	the	DET
ajst-26222	131	7	elliptic	elliptic	ADJ
ajst-26222	131	8	curve	curve	NOUN
ajst-26222	131	9	discrete	discrete	ADJ
ajst-26222	131	10	logarithm	logarithm	NOUN
ajst-26222	131	11	problem	problem	NOUN
ajst-26222	131	12	.	.	PUNCT
ajst-26222	132	1	therefore	therefore	ADV
ajst-26222	132	2	,	,	PUNCT
ajst-26222	132	3	the	the	DET
ajst-26222	132	4	scheme	scheme	NOUN
ajst-26222	132	5	satisfies	satisfy	VERB
ajst-26222	132	6	unforgeability	unforgeability	NOUN
ajst-26222	132	7	.	.	PUNCT
ajst-26222	133	1	4.3	4.3	NUM
ajst-26222	133	2	.	.	PUNCT
ajst-26222	133	3	resistance	resistance	NOUN
ajst-26222	133	4	of	of	ADP
ajst-26222	133	5	impersonation	impersonation	NOUN
ajst-26222	133	6	attack	attack	NOUN
ajst-26222	133	7	on	on	ADP
ajst-26222	133	8	the	the	DET
ajst-26222	133	9	premise	premise	NOUN
ajst-26222	133	10	of	of	ADP
ajst-26222	133	11	solution	solution	NOUN
ajst-26222	133	12	of	of	ADP
ajst-26222	133	13	the	the	DET
ajst-26222	133	14	elliptic	elliptic	ADJ
ajst-26222	133	15	curve	curve	NOUN
ajst-26222	133	16	discrete	discrete	ADJ
ajst-26222	133	17	logarithm	logarithm	NOUN
ajst-26222	133	18	problem	problem	NOUN
ajst-26222	133	19	(	(	PUNCT
ajst-26222	133	20	ecdlp	ecdlp	NOUN
ajst-26222	133	21	)	)	PUNCT
ajst-26222	133	22	is	be	AUX
ajst-26222	133	23	difficult	difficult	ADJ
ajst-26222	133	24	,	,	PUNCT
ajst-26222	133	25	attacker	attacker	NOUN
ajst-26222	133	26	a	a	PRON
ajst-26222	133	27	can	can	AUX
ajst-26222	133	28	not	not	PART
ajst-26222	133	29	impersonate	impersonate	VERB
ajst-26222	133	30	a	a	DET
ajst-26222	133	31	user	user	NOUN
ajst-26222	133	32	to	to	PART
ajst-26222	133	33	send	send	VERB
ajst-26222	133	34	a	a	DET
ajst-26222	133	35	signature	signature	NOUN
ajst-26222	133	36	in	in	ADP
ajst-26222	133	37	polynomial	polynomial	ADJ
ajst-26222	133	38	time	time	NOUN
ajst-26222	133	39	,	,	PUNCT
ajst-26222	133	40	that	that	ADV
ajst-26222	133	41	is	is	ADV
ajst-26222	133	42	,	,	PUNCT
ajst-26222	133	43	the	the	DET
ajst-26222	133	44	scheme	scheme	NOUN
ajst-26222	133	45	is	be	AUX
ajst-26222	133	46	resistant	resistant	ADJ
ajst-26222	133	47	to	to	ADP
ajst-26222	133	48	impersonation	impersonation	NOUN
ajst-26222	133	49	attacks	attack	NOUN
ajst-26222	133	50	.	.	PUNCT
ajst-26222	134	1	the	the	DET
ajst-26222	134	2	following	follow	VERB
ajst-26222	134	3	is	be	AUX
ajst-26222	134	4	the	the	DET
ajst-26222	134	5	proof	proof	NOUN
ajst-26222	134	6	:	:	PUNCT
ajst-26222	134	7	proof	proof	NOUN
ajst-26222	134	8	:	:	PUNCT
ajst-26222	134	9	if	if	SCONJ
ajst-26222	134	10	the	the	DET
ajst-26222	134	11	attacker	attacker	NOUN
ajst-26222	134	12	a	a	PRON
ajst-26222	134	13	tries	try	VERB
ajst-26222	134	14	to	to	PART
ajst-26222	134	15	impersonate	impersonate	VERB
ajst-26222	134	16	the	the	DET
ajst-26222	134	17	user	user	NOUN
ajst-26222	134	18	and	and	CCONJ
ajst-26222	134	19	send	send	VERB
ajst-26222	134	20	the	the	DET
ajst-26222	134	21	signature	signature	NOUN
ajst-26222	134	22	to	to	ADP
ajst-26222	134	23	the	the	DET
ajst-26222	134	24	lbs	lbs	NOUN
ajst-26222	134	25	server	server	NOUN
ajst-26222	134	26	successfully	successfully	ADV
ajst-26222	134	27	in	in	ADP
ajst-26222	134	28	polynomial	polynomial	ADJ
ajst-26222	134	29	time	time	NOUN
ajst-26222	134	30	,	,	PUNCT
ajst-26222	134	31	he	he	PRON
ajst-26222	134	32	needs	need	VERB
ajst-26222	134	33	to	to	PART
ajst-26222	134	34	confirm	confirm	VERB
ajst-26222	134	35	to	to	ADP
ajst-26222	134	36	the	the	DET
ajst-26222	134	37	lbs	lbs	NOUN
ajst-26222	134	38	server	server	NOUN
ajst-26222	134	39	that	that	SCONJ
ajst-26222	134	40	the	the	DET
ajst-26222	134	41	equation	equation	NOUN
ajst-26222	134	42	holds	hold	VERB
ajst-26222	134	43	,	,	PUNCT
ajst-26222	134	44	that	that	ADV
ajst-26222	134	45	is	is	ADV
ajst-26222	134	46	,	,	PUNCT
ajst-26222	134	47	the	the	DET
ajst-26222	134	48	attacker	attacker	NOUN
ajst-26222	134	49	must	must	AUX
ajst-26222	134	50	know	know	VERB
ajst-26222	134	51	the	the	PRON
ajst-26222	134	52	and	and	CCONJ
ajst-26222	134	53	the	the	DET
ajst-26222	134	54	system	system	NOUN
ajst-26222	134	55	master	master	NOUN
ajst-26222	134	56	key	key	NOUN
ajst-26222	134	57	.	.	PUNCT
ajst-26222	135	1	to	to	PART
ajst-26222	135	2	obtain	obtain	VERB
ajst-26222	135	3	the	the	PRON
ajst-26222	135	4	and	and	CCONJ
ajst-26222	135	5	the	the	DET
ajst-26222	135	6	system	system	NOUN
ajst-26222	135	7	master	master	NOUN
ajst-26222	135	8	key	key	NOUN
ajst-26222	135	9	,	,	PUNCT
ajst-26222	135	10	the	the	DET
ajst-26222	135	11	attacker	attacker	NOUN
ajst-26222	135	12	a	a	DET
ajst-26222	135	13	needs	need	NOUN
ajst-26222	135	14	to	to	PART
ajst-26222	135	15	obtain	obtain	VERB
ajst-26222	135	16	the	the	DET
ajst-26222	135	17	random	random	ADJ
ajst-26222	135	18	number	number	NOUN
ajst-26222	135	19	and	and	CCONJ
ajst-26222	135	20	the	the	DET
ajst-26222	135	21	user	user	NOUN
ajst-26222	135	22	private	private	ADJ
ajst-26222	135	23	key	key	NOUN
ajst-26222	135	24	,	,	PUNCT
ajst-26222	135	25	and	and	CCONJ
ajst-26222	135	26	solve	solve	VERB
ajst-26222	135	27	the	the	PRON
ajst-26222	135	28	according	accord	VERB
ajst-26222	135	29	to	to	ADP
ajst-26222	135	30	.	.	PUNCT
ajst-26222	136	1	because	because	SCONJ
ajst-26222	136	2	and	and	CCONJ
ajst-26222	136	3	keep	keep	VERB
ajst-26222	136	4	the	the	DET
ajst-26222	136	5	attacker	attacker	NOUN
ajst-26222	136	6	a	a	DET
ajst-26222	136	7	secret	secret	NOUN
ajst-26222	136	8	,	,	PUNCT
ajst-26222	136	9	solving	solving	NOUN
ajst-26222	136	10	is	be	AUX
ajst-26222	136	11	equivalent	equivalent	ADJ
ajst-26222	136	12	to	to	ADP
ajst-26222	136	13	solving	solve	VERB
ajst-26222	136	14	the	the	DET
ajst-26222	136	15	elliptic	elliptic	ADJ
ajst-26222	136	16	curve	curve	NOUN
ajst-26222	136	17	discrete	discrete	ADJ
ajst-26222	136	18	logarithm	logarithm	NOUN
ajst-26222	136	19	problem	problem	NOUN
ajst-26222	136	20	.	.	PUNCT
ajst-26222	137	1	therefore	therefore	ADV
ajst-26222	137	2	,	,	PUNCT
ajst-26222	137	3	the	the	DET
ajst-26222	137	4	program	program	NOUN
ajst-26222	137	5	is	be	AUX
ajst-26222	137	6	resistant	resistant	ADJ
ajst-26222	137	7	to	to	ADP
ajst-26222	137	8	impersonation	impersonation	NOUN
ajst-26222	137	9	attacks	attack	NOUN
ajst-26222	137	10	.	.	PUNCT
ajst-26222	138	1	5	5	X
ajst-26222	138	2	.	.	X
ajst-26222	138	3	analysis	analysis	NOUN
ajst-26222	138	4	on	on	ADP
ajst-26222	138	5	trajectory	trajectory	NOUN
ajst-26222	138	6	similarity	similarity	NOUN
ajst-26222	138	7	the	the	DET
ajst-26222	138	8	environment	environment	NOUN
ajst-26222	138	9	of	of	ADP
ajst-26222	138	10	simulation	simulation	NOUN
ajst-26222	138	11	experiment	experiment	NOUN
ajst-26222	138	12	is	be	AUX
ajst-26222	138	13	intel	intel	PROPN
ajst-26222	138	14	i913900hx	i913900hx	PROPN
ajst-26222	138	15	2.20	2.20	NUM
ajst-26222	138	16	ghz	ghz	NOUN
ajst-26222	138	17	cpu	cpu	NOUN
ajst-26222	138	18	,	,	PUNCT
ajst-26222	138	19	16	16	NUM
ajst-26222	138	20	gb	gb	NOUN
ajst-26222	138	21	ram	ram	NOUN
ajst-26222	138	22	,	,	PUNCT
ajst-26222	138	23	windows	window	VERB
ajst-26222	138	24	11	11	NUM
ajst-26222	138	25	operation	operation	NOUN
ajst-26222	138	26	system	system	NOUN
ajst-26222	138	27	,	,	PUNCT
ajst-26222	138	28	matlab	matlab	PROPN
ajst-26222	138	29	simulation	simulation	NOUN
ajst-26222	138	30	software	software	NOUN
ajst-26222	138	31	and	and	CCONJ
ajst-26222	138	32	moving	move	VERB
ajst-26222	138	33	object	object	NOUN
ajst-26222	138	34	generator	generator	NOUN
ajst-26222	138	35	thomas	thomas	PROPN
ajst-26222	138	36	brinkhoff	brinkhoff	PROPN
ajst-26222	138	37	environment	environment	PROPN
ajst-26222	138	38	.	.	PUNCT
ajst-26222	139	1	generate	generate	VERB
ajst-26222	139	2	a	a	DET
ajst-26222	139	3	large	large	ADJ
ajst-26222	139	4	number	number	NOUN
ajst-26222	139	5	of	of	ADP
ajst-26222	139	6	trajectory	trajectory	NOUN
ajst-26222	139	7	data	datum	NOUN
ajst-26222	139	8	of	of	ADP
ajst-26222	139	9	moving	move	VERB
ajst-26222	139	10	objects	object	NOUN
ajst-26222	139	11	through	through	ADP
ajst-26222	139	12	thomas	thomas	PROPN
ajst-26222	139	13	brinkhoff	brinkhoff	PROPN
ajst-26222	139	14	,	,	PUNCT
ajst-26222	139	15	randomly	randomly	ADV
ajst-26222	139	16	select	select	VERB
ajst-26222	139	17	a	a	DET
ajst-26222	139	18	moving	move	VERB
ajst-26222	139	19	object	object	NOUN
ajst-26222	139	20	,	,	PUNCT
ajst-26222	139	21	generate	generate	VERB
ajst-26222	139	22	2	2	NUM
ajst-26222	139	23	noise	noise	NOUN
ajst-26222	139	24	trajectories	trajectory	NOUN
ajst-26222	139	25	through	through	ADP
ajst-26222	139	26	the	the	DET
ajst-26222	139	27	laplacian	laplacian	ADJ
ajst-26222	139	28	noise	noise	NOUN
ajst-26222	139	29	algorithm	algorithm	NOUN
ajst-26222	139	30	,	,	PUNCT
ajst-26222	139	31	and	and	CCONJ
ajst-26222	139	32	select	select	VERB
ajst-26222	139	33	1	1	NUM
ajst-26222	139	34	noise	noise	NOUN
ajst-26222	139	35	trajectories	trajectory	NOUN
ajst-26222	139	36	according	accord	VERB
ajst-26222	139	37	to	to	ADP
ajst-26222	139	38	the	the	DET
ajst-26222	139	39	trajectory	trajectory	NOUN
ajst-26222	139	40	similarity	similarity	NOUN
ajst-26222	139	41	algorithm	algorithm	NOUN
ajst-26222	139	42	to	to	PART
ajst-26222	139	43	achieve	achieve	VERB
ajst-26222	139	44	real	real	ADJ
ajst-26222	139	45	trajectory	trajectory	NOUN
ajst-26222	139	46	anonymity	anonymity	NOUN
ajst-26222	139	47	.	.	PUNCT
ajst-26222	140	1	5.1	5.1	NUM
ajst-26222	140	2	.	.	PUNCT
ajst-26222	141	1	anonymity	anonymity	NOUN
ajst-26222	141	2	the	the	DET
ajst-26222	141	3	trajectory	trajectory	NOUN
ajst-26222	141	4	similarity	similarity	NOUN
ajst-26222	141	5	reflects	reflect	VERB
ajst-26222	141	6	the	the	DET
ajst-26222	141	7	trajectory	trajectory	NOUN
ajst-26222	141	8	privacy	privacy	NOUN
ajst-26222	141	9	protection	protection	NOUN
ajst-26222	141	10	effect	effect	NOUN
ajst-26222	141	11	to	to	ADP
ajst-26222	141	12	a	a	DET
ajst-26222	141	13	certain	certain	ADJ
ajst-26222	141	14	extent	extent	NOUN
ajst-26222	141	15	.	.	PUNCT
ajst-26222	142	1	the	the	PRON
ajst-26222	142	2	smaller	small	ADJ
ajst-26222	142	3	the	the	DET
ajst-26222	142	4	trajectory	trajectory	NOUN
ajst-26222	142	5	similarity	similarity	NOUN
ajst-26222	142	6	is	be	AUX
ajst-26222	142	7	,	,	PUNCT
ajst-26222	142	8	the	the	PRON
ajst-26222	142	9	better	well	ADJ
ajst-26222	142	10	the	the	DET
ajst-26222	142	11	trajectory	trajectory	NOUN
ajst-26222	142	12	privacy	privacy	NOUN
ajst-26222	142	13	protection	protection	NOUN
ajst-26222	142	14	effect	effect	NOUN
ajst-26222	142	15	is	be	AUX
ajst-26222	142	16	.	.	PUNCT
ajst-26222	143	1	the	the	DET
ajst-26222	143	2	simulation	simulation	NOUN
ajst-26222	143	3	experiment	experiment	NOUN
ajst-26222	143	4	selects	select	NOUN
ajst-26222	143	5	,	,	PUNCT
ajst-26222	143	6	as	as	SCONJ
ajst-26222	143	7	shown	show	VERB
ajst-26222	143	8	in	in	ADP
ajst-26222	143	9	figure	figure	NOUN
ajst-26222	143	10	.	.	PUNCT
ajst-26222	144	1	2	2	NUM
ajst-26222	144	2	,	,	PUNCT
ajst-26222	144	3	with	with	ADP
ajst-26222	144	4	the	the	DET
ajst-26222	144	5	increase	increase	NOUN
ajst-26222	144	6	of	of	ADP
ajst-26222	144	7	,	,	PUNCT
ajst-26222	144	8	the	the	DET
ajst-26222	144	9	trajectory	trajectory	NOUN
ajst-26222	144	10	similarity	similarity	NOUN
ajst-26222	144	11	of	of	ADP
ajst-26222	144	12	this	this	DET
ajst-26222	144	13	scheme	scheme	NOUN
ajst-26222	144	14	and	and	CCONJ
ajst-26222	144	15	the	the	DET
ajst-26222	144	16	comparison	comparison	NOUN
ajst-26222	144	17	scheme	scheme	NOUN
ajst-26222	144	18	changes	change	NOUN
ajst-26222	144	19	little	little	ADJ
ajst-26222	144	20	.	.	PUNCT
ajst-26222	145	1	ref	ref	VERB
ajst-26222	145	2	.	.	PUNCT
ajst-26222	146	1	[	[	X
ajst-26222	146	2	8	8	NUM
ajst-26222	146	3	]	]	PUNCT
ajst-26222	146	4	considers	consider	VERB
ajst-26222	146	5	the	the	DET
ajst-26222	146	6	characteristics	characteristic	NOUN
ajst-26222	146	7	of	of	ADP
ajst-26222	146	8	user	user	NOUN
ajst-26222	146	9	behavior	behavior	NOUN
ajst-26222	146	10	patterns	pattern	NOUN
ajst-26222	146	11	and	and	CCONJ
ajst-26222	146	12	trajectory	trajectory	NOUN
ajst-26222	146	13	similarity	similarity	NOUN
ajst-26222	146	14	.	.	PUNCT
ajst-26222	147	1	according	accord	VERB
ajst-26222	147	2	to	to	ADP
ajst-26222	147	3	the	the	DET
ajst-26222	147	4	background	background	NOUN
ajst-26222	147	5	information	information	NOUN
ajst-26222	147	6	of	of	ADP
ajst-26222	147	7	the	the	DET
ajst-26222	147	8	user	user	NOUN
ajst-26222	147	9	's	's	PART
ajst-26222	147	10	area	area	NOUN
ajst-26222	147	11	,	,	PUNCT
ajst-26222	147	12	a	a	DET
ajst-26222	147	13	false	false	ADJ
ajst-26222	147	14	trajectory	trajectory	NOUN
ajst-26222	147	15	is	be	AUX
ajst-26222	147	16	constructed	construct	VERB
ajst-26222	147	17	by	by	ADP
ajst-26222	147	18	methods	method	NOUN
ajst-26222	147	19	such	such	ADJ
ajst-26222	147	20	as	as	ADP
ajst-26222	147	21	trajectory	trajectory	NOUN
ajst-26222	147	22	rotation	rotation	NOUN
ajst-26222	147	23	,	,	PUNCT
ajst-26222	147	24	which	which	PRON
ajst-26222	147	25	can	can	AUX
ajst-26222	147	26	effectively	effectively	ADV
ajst-26222	147	27	resist	resist	VERB
ajst-26222	147	28	background	background	NOUN
ajst-26222	147	29	knowledge	knowledge	NOUN
ajst-26222	147	30	attacks	attack	NOUN
ajst-26222	147	31	,	,	PUNCT
ajst-26222	147	32	and	and	CCONJ
ajst-26222	147	33	the	the	DET
ajst-26222	147	34	trajectory	trajectory	NOUN
ajst-26222	147	35	similarity	similarity	NOUN
ajst-26222	147	36	is	be	AUX
ajst-26222	147	37	relatively	relatively	ADV
ajst-26222	147	38	small	small	ADJ
ajst-26222	147	39	.	.	PUNCT
ajst-26222	148	1	ref	ref	NOUN
ajst-26222	148	2	.	.	PUNCT
ajst-26222	149	1	[	[	X
ajst-26222	149	2	11	11	NUM
ajst-26222	149	3	]	]	PUNCT
ajst-26222	149	4	scheme	scheme	NOUN
ajst-26222	149	5	considers	consider	VERB
ajst-26222	149	6	the	the	DET
ajst-26222	149	7	road	road	NOUN
ajst-26222	149	8	network	network	NOUN
ajst-26222	149	9	information	information	NOUN
ajst-26222	149	10	when	when	SCONJ
ajst-26222	149	11	generating	generate	VERB
ajst-26222	149	12	the	the	DET
ajst-26222	149	13	virtual	virtual	ADJ
ajst-26222	149	14	position	position	NOUN
ajst-26222	149	15	and	and	CCONJ
ajst-26222	149	16	generates	generate	VERB
ajst-26222	149	17	the	the	DET
ajst-26222	149	18	pseudo	pseudo	NOUN
ajst-26222	149	19	-	-	NOUN
ajst-26222	149	20	position	position	NOUN
ajst-26222	149	21	based	base	VERB
ajst-26222	149	22	on	on	ADP
ajst-26222	149	23	the	the	DET
ajst-26222	149	24	road	road	NOUN
ajst-26222	149	25	network	network	NOUN
ajst-26222	149	26	threshold	threshold	NOUN
ajst-26222	149	27	set	set	NOUN
ajst-26222	149	28	,	,	PUNCT
ajst-26222	149	29	and	and	CCONJ
ajst-26222	149	30	the	the	DET
ajst-26222	149	31	generated	generate	VERB
ajst-26222	149	32	pseudo	pseudo	NOUN
ajst-26222	149	33	-	-	NOUN
ajst-26222	149	34	trajectory	trajectory	NOUN
ajst-26222	149	35	has	have	VERB
ajst-26222	149	36	high	high	ADJ
ajst-26222	149	37	trajectory	trajectory	NOUN
ajst-26222	149	38	similarity	similarity	NOUN
ajst-26222	149	39	with	with	ADP
ajst-26222	149	40	the	the	DET
ajst-26222	149	41	real	real	ADJ
ajst-26222	149	42	trajectory	trajectory	NOUN
ajst-26222	149	43	.	.	PUNCT
ajst-26222	150	1	the	the	DET
ajst-26222	150	2	scheme	scheme	NOUN
ajst-26222	150	3	proposed	propose	VERB
ajst-26222	150	4	in	in	ADP
ajst-26222	150	5	this	this	DET
ajst-26222	150	6	paper	paper	NOUN
ajst-26222	150	7	generates	generate	VERB
ajst-26222	150	8	noise	noise	NOUN
ajst-26222	150	9	trajectories	trajectory	NOUN
ajst-26222	150	10	by	by	ADP
ajst-26222	150	11	adding	add	VERB
ajst-26222	150	12	laplacian	laplacian	ADJ
ajst-26222	150	13	noise	noise	NOUN
ajst-26222	150	14	to	to	ADP
ajst-26222	150	15	user	user	NOUN
ajst-26222	150	16	trajectories	trajectory	NOUN
ajst-26222	150	17	multiple	multiple	ADJ
ajst-26222	150	18	times	time	NOUN
ajst-26222	150	19	,	,	PUNCT
ajst-26222	150	20	and	and	CCONJ
ajst-26222	150	21	selects	select	VERB
ajst-26222	150	22	the	the	DET
ajst-26222	150	23	first	first	ADJ
ajst-26222	150	24	noise	noise	NOUN
ajst-26222	150	25	trajectories	trajectory	NOUN
ajst-26222	150	26	with	with	ADP
ajst-26222	150	27	less	less	ADJ
ajst-26222	150	28	similarity	similarity	NOUN
ajst-26222	150	29	according	accord	VERB
ajst-26222	150	30	to	to	ADP
ajst-26222	150	31	the	the	DET
ajst-26222	150	32	trajectory	trajectory	NOUN
ajst-26222	150	33	similarity	similarity	NOUN
ajst-26222	150	34	formula	formula	NOUN
ajst-26222	150	35	,	,	PUNCT
ajst-26222	150	36	and	and	CCONJ
ajst-26222	150	37	discards	discard	VERB
ajst-26222	150	38	the	the	DET
ajst-26222	150	39	ones	one	NOUN
ajst-26222	150	40	with	with	ADP
ajst-26222	150	41	greater	great	ADJ
ajst-26222	150	42	trajectories	trajectory	NOUN
ajst-26222	150	43	similarity	similarity	NOUN
ajst-26222	150	44	.	.	PUNCT
ajst-26222	151	1	noisy	noisy	ADJ
ajst-26222	151	2	trajectories	trajectory	NOUN
ajst-26222	151	3	,	,	PUNCT
ajst-26222	151	4	so	so	SCONJ
ajst-26222	151	5	this	this	DET
ajst-26222	151	6	scheme	scheme	NOUN
ajst-26222	151	7	has	have	VERB
ajst-26222	151	8	the	the	DET
ajst-26222	151	9	lowest	low	ADJ
ajst-26222	151	10	trajectory	trajectory	NOUN
ajst-26222	151	11	similarity	similarity	NOUN
ajst-26222	151	12	.	.	PUNCT
ajst-26222	152	1	225	225	NUM
ajst-26222	152	2	figure	figure	NOUN
ajst-26222	152	3	2	2	NUM
ajst-26222	152	4	.	.	PUNCT
ajst-26222	153	1	the	the	DET
ajst-26222	153	2	relationship	relationship	NOUN
ajst-26222	153	3	between	between	ADP
ajst-26222	153	4	k	k	PROPN
ajst-26222	153	5	and	and	CCONJ
ajst-26222	153	6	trajectory	trajectory	NOUN
ajst-26222	153	7	similarity	similarity	NOUN
ajst-26222	153	8	5.2	5.2	NUM
ajst-26222	153	9	.	.	PUNCT
ajst-26222	154	1	anonymity	anonymity	NOUN
ajst-26222	154	2	in	in	ADP
ajst-26222	154	3	the	the	DET
ajst-26222	154	4	case	case	NOUN
ajst-26222	154	5	of	of	ADP
ajst-26222	154	6	a	a	DET
ajst-26222	154	7	certain	certain	ADJ
ajst-26222	154	8	differential	differential	NOUN
ajst-26222	154	9	budget	budget	NOUN
ajst-26222	154	10	,	,	PUNCT
ajst-26222	154	11	the	the	DET
ajst-26222	154	12	relation	relation	NOUN
ajst-26222	154	13	between	between	ADP
ajst-26222	154	14	the	the	DET
ajst-26222	154	15	algorithm	algorithm	NOUN
ajst-26222	154	16	execution	execution	NOUN
ajst-26222	154	17	time	time	NOUN
ajst-26222	154	18	and	and	CCONJ
ajst-26222	154	19	of	of	ADP
ajst-26222	154	20	the	the	DET
ajst-26222	154	21	three	three	NUM
ajst-26222	154	22	schemes	scheme	NOUN
ajst-26222	154	23	is	be	AUX
ajst-26222	154	24	shown	show	VERB
ajst-26222	154	25	in	in	ADP
ajst-26222	154	26	figure	figure	NOUN
ajst-26222	154	27	.	.	PUNCT
ajst-26222	155	1	3	3	X
ajst-26222	155	2	.	.	X
ajst-26222	155	3	ref	ref	NOUN
ajst-26222	155	4	.	.	PUNCT
ajst-26222	156	1	[	[	X
ajst-26222	156	2	8	8	NUM
ajst-26222	156	3	]	]	PUNCT
ajst-26222	156	4	considers	consider	VERB
ajst-26222	156	5	multiple	multiple	ADJ
ajst-26222	156	6	factors	factor	NOUN
ajst-26222	156	7	such	such	ADJ
ajst-26222	156	8	as	as	ADP
ajst-26222	156	9	user	user	NOUN
ajst-26222	156	10	behavior	behavior	NOUN
ajst-26222	156	11	patterns	pattern	NOUN
ajst-26222	156	12	,	,	PUNCT
ajst-26222	156	13	generates	generate	VERB
ajst-26222	156	14	false	false	ADJ
ajst-26222	156	15	trajectories	trajectory	NOUN
ajst-26222	156	16	through	through	ADP
ajst-26222	156	17	trajectory	trajectory	NOUN
ajst-26222	156	18	rotation	rotation	NOUN
ajst-26222	156	19	,	,	PUNCT
ajst-26222	156	20	and	and	CCONJ
ajst-26222	156	21	needs	need	VERB
ajst-26222	156	22	to	to	PART
ajst-26222	156	23	traverse	traverse	VERB
ajst-26222	156	24	the	the	DET
ajst-26222	156	25	values	value	NOUN
ajst-26222	156	26	at	at	ADP
ajst-26222	156	27	each	each	DET
ajst-26222	156	28	time	time	NOUN
ajst-26222	156	29	point	point	NOUN
ajst-26222	156	30	corresponding	correspond	VERB
ajst-26222	156	31	to	to	ADP
ajst-26222	156	32	the	the	DET
ajst-26222	156	33	false	false	ADJ
ajst-26222	156	34	trajectories	trajectory	NOUN
ajst-26222	156	35	to	to	PART
ajst-26222	156	36	perform	perform	VERB
ajst-26222	156	37	corresponding	corresponding	ADJ
ajst-26222	156	38	offsets	offset	NOUN
ajst-26222	156	39	,	,	PUNCT
ajst-26222	156	40	and	and	CCONJ
ajst-26222	156	41	the	the	DET
ajst-26222	156	42	algorithm	algorithm	NOUN
ajst-26222	156	43	execution	execution	NOUN
ajst-26222	156	44	time	time	NOUN
ajst-26222	156	45	is	be	AUX
ajst-26222	156	46	long	long	ADJ
ajst-26222	156	47	.	.	PUNCT
ajst-26222	157	1	ref.[11	ref.[11	VERB
ajst-26222	157	2	]	]	PUNCT
ajst-26222	157	3	firstly	firstly	ADV
ajst-26222	157	4	constructs	construct	VERB
ajst-26222	157	5	an	an	DET
ajst-26222	157	6	adaptive	adaptive	ADJ
ajst-26222	157	7	threshold	threshold	NOUN
ajst-26222	157	8	set	set	VERB
ajst-26222	157	9	according	accord	VERB
ajst-26222	157	10	to	to	ADP
ajst-26222	157	11	the	the	DET
ajst-26222	157	12	road	road	NOUN
ajst-26222	157	13	network	network	NOUN
ajst-26222	157	14	information	information	NOUN
ajst-26222	157	15	;	;	PUNCT
ajst-26222	157	16	then	then	ADV
ajst-26222	157	17	,	,	PUNCT
ajst-26222	157	18	the	the	DET
ajst-26222	157	19	network	network	NOUN
ajst-26222	157	20	topology	topology	NOUN
ajst-26222	157	21	map	map	NOUN
ajst-26222	157	22	of	of	ADP
ajst-26222	157	23	the	the	DET
ajst-26222	157	24	road	road	NOUN
ajst-26222	157	25	network	network	NOUN
ajst-26222	157	26	is	be	AUX
ajst-26222	157	27	used	use	VERB
ajst-26222	157	28	as	as	ADP
ajst-26222	157	29	a	a	DET
ajst-26222	157	30	motion	motion	NOUN
ajst-26222	157	31	model	model	NOUN
ajst-26222	157	32	to	to	PART
ajst-26222	157	33	generate	generate	VERB
ajst-26222	157	34	virtual	virtual	ADJ
ajst-26222	157	35	trajectories	trajectory	NOUN
ajst-26222	157	36	,	,	PUNCT
ajst-26222	157	37	and	and	CCONJ
ajst-26222	157	38	the	the	DET
ajst-26222	157	39	execution	execution	NOUN
ajst-26222	157	40	time	time	NOUN
ajst-26222	157	41	of	of	ADP
ajst-26222	157	42	the	the	DET
ajst-26222	157	43	scheme	scheme	NOUN
ajst-26222	157	44	is	be	AUX
ajst-26222	157	45	relatively	relatively	ADV
ajst-26222	157	46	high	high	ADJ
ajst-26222	157	47	due	due	ADP
ajst-26222	157	48	to	to	ADP
ajst-26222	157	49	the	the	DET
ajst-26222	157	50	need	need	NOUN
ajst-26222	157	51	to	to	PART
ajst-26222	157	52	take	take	VERB
ajst-26222	157	53	into	into	ADP
ajst-26222	157	54	account	account	NOUN
ajst-26222	157	55	the	the	DET
ajst-26222	157	56	influence	influence	NOUN
ajst-26222	157	57	of	of	ADP
ajst-26222	157	58	the	the	DET
ajst-26222	157	59	road	road	NOUN
ajst-26222	157	60	network	network	NOUN
ajst-26222	157	61	constraints	constraint	NOUN
ajst-26222	157	62	when	when	SCONJ
ajst-26222	157	63	the	the	DET
ajst-26222	157	64	scheme	scheme	NOUN
ajst-26222	157	65	generates	generate	VERB
ajst-26222	157	66	virtual	virtual	ADJ
ajst-26222	157	67	trajectories	trajectory	NOUN
ajst-26222	157	68	.	.	PUNCT
ajst-26222	158	1	this	this	DET
ajst-26222	158	2	scheme	scheme	NOUN
ajst-26222	158	3	just	just	ADV
ajst-26222	158	4	adds	add	VERB
ajst-26222	158	5	noise	noise	NOUN
ajst-26222	158	6	to	to	ADP
ajst-26222	158	7	the	the	DET
ajst-26222	158	8	existing	exist	VERB
ajst-26222	158	9	trajectory	trajectory	NOUN
ajst-26222	158	10	and	and	CCONJ
ajst-26222	158	11	selects	select	VERB
ajst-26222	158	12	the	the	DET
ajst-26222	158	13	1	1	NUM
ajst-26222	158	14	noise	noise	NOUN
ajst-26222	158	15	trajectory	trajectory	NOUN
ajst-26222	158	16	through	through	ADP
ajst-26222	158	17	the	the	DET
ajst-26222	158	18	trajectory	trajectory	NOUN
ajst-26222	158	19	similarity	similarity	NOUN
ajst-26222	158	20	formula	formula	NOUN
ajst-26222	158	21	,	,	PUNCT
ajst-26222	158	22	without	without	ADP
ajst-26222	158	23	considering	consider	VERB
ajst-26222	158	24	other	other	ADJ
ajst-26222	158	25	factors	factor	NOUN
ajst-26222	158	26	,	,	PUNCT
ajst-26222	158	27	and	and	CCONJ
ajst-26222	158	28	the	the	DET
ajst-26222	158	29	algorithm	algorithm	NOUN
ajst-26222	158	30	has	have	VERB
ajst-26222	158	31	the	the	DET
ajst-26222	158	32	highest	high	ADJ
ajst-26222	158	33	execution	execution	NOUN
ajst-26222	158	34	efficiency	efficiency	NOUN
ajst-26222	158	35	.	.	PUNCT
ajst-26222	159	1	figure	figure	VERB
ajst-26222	159	2	3	3	NUM
ajst-26222	159	3	.	.	PUNCT
ajst-26222	160	1	the	the	DET
ajst-26222	160	2	relation	relation	NOUN
ajst-26222	160	3	between	between	ADP
ajst-26222	160	4	k	k	PROPN
ajst-26222	160	5	and	and	CCONJ
ajst-26222	160	6	algorithm	algorithm	NOUN
ajst-26222	160	7	execution	execution	NOUN
ajst-26222	160	8	time	time	NOUN
ajst-26222	160	9	the	the	DET
ajst-26222	160	10	relationship	relationship	NOUN
ajst-26222	160	11	between	between	ADP
ajst-26222	160	12	and	and	CCONJ
ajst-26222	160	13	and	and	CCONJ
ajst-26222	160	14	the	the	DET
ajst-26222	160	15	algorithm	algorithm	NOUN
ajst-26222	160	16	execution	execution	NOUN
ajst-26222	160	17	time	time	NOUN
ajst-26222	160	18	is	be	AUX
ajst-26222	160	19	shown	show	VERB
ajst-26222	160	20	in	in	ADP
ajst-26222	160	21	figure	figure	NOUN
ajst-26222	160	22	.	.	PUNCT
ajst-26222	161	1	4	4	X
ajst-26222	161	2	.	.	X
ajst-26222	161	3	when	when	SCONJ
ajst-26222	161	4	is	be	AUX
ajst-26222	161	5	constant	constant	ADJ
ajst-26222	161	6	,	,	PUNCT
ajst-26222	161	7	the	the	DET
ajst-26222	161	8	execution	execution	NOUN
ajst-26222	161	9	time	time	NOUN
ajst-26222	161	10	of	of	ADP
ajst-26222	161	11	the	the	DET
ajst-26222	161	12	algorithm	algorithm	NOUN
ajst-26222	161	13	increases	increase	VERB
ajst-26222	161	14	with	with	ADP
ajst-26222	161	15	the	the	DET
ajst-26222	161	16	increase	increase	NOUN
ajst-26222	161	17	of	of	ADP
ajst-26222	161	18	;	;	PUNCT
ajst-26222	161	19	when	when	SCONJ
ajst-26222	161	20	is	be	AUX
ajst-26222	161	21	constant	constant	ADJ
ajst-26222	161	22	,	,	PUNCT
ajst-26222	161	23	the	the	DET
ajst-26222	161	24	execution	execution	NOUN
ajst-26222	161	25	time	time	NOUN
ajst-26222	161	26	of	of	ADP
ajst-26222	161	27	the	the	DET
ajst-26222	161	28	algorithm	algorithm	NOUN
ajst-26222	161	29	changes	change	VERB
ajst-26222	161	30	little	little	ADJ
ajst-26222	161	31	with	with	ADP
ajst-26222	161	32	the	the	DET
ajst-26222	161	33	increase	increase	NOUN
ajst-26222	161	34	of	of	ADP
ajst-26222	161	35	.	.	PUNCT
ajst-26222	162	1	when	when	SCONJ
ajst-26222	162	2	5	5	NUM
ajst-26222	162	3	,	,	PUNCT
ajst-26222	162	4	with	with	ADP
ajst-26222	162	5	the	the	DET
ajst-26222	162	6	increase	increase	NOUN
ajst-26222	162	7	of	of	ADP
ajst-26222	162	8	,	,	PUNCT
ajst-26222	162	9	the	the	DET
ajst-26222	162	10	execution	execution	NOUN
ajst-26222	162	11	time	time	NOUN
ajst-26222	162	12	of	of	ADP
ajst-26222	162	13	the	the	DET
ajst-26222	162	14	algorithm	algorithm	NOUN
ajst-26222	162	15	fluctuates	fluctuate	VERB
ajst-26222	162	16	around	around	ADP
ajst-26222	162	17	30ms	30ms	NUM
ajst-26222	162	18	.	.	PUNCT
ajst-26222	163	1	when	when	SCONJ
ajst-26222	163	2	10	10	NUM
ajst-26222	163	3	,	,	PUNCT
ajst-26222	163	4	with	with	ADP
ajst-26222	163	5	the	the	DET
ajst-26222	163	6	increase	increase	NOUN
ajst-26222	163	7	of	of	ADP
ajst-26222	163	8	,	,	PUNCT
ajst-26222	163	9	the	the	DET
ajst-26222	163	10	execution	execution	NOUN
ajst-26222	163	11	time	time	NOUN
ajst-26222	163	12	of	of	ADP
ajst-26222	163	13	the	the	DET
ajst-26222	163	14	algorithm	algorithm	NOUN
ajst-26222	163	15	fluctuates	fluctuate	VERB
ajst-26222	163	16	around	around	ADP
ajst-26222	163	17	35ms	35ms	NUM
ajst-26222	163	18	.	.	PUNCT
ajst-26222	164	1	when	when	SCONJ
ajst-26222	164	2	15	15	NUM
ajst-26222	164	3	,	,	PUNCT
ajst-26222	164	4	with	with	ADP
ajst-26222	164	5	the	the	DET
ajst-26222	164	6	increase	increase	NOUN
ajst-26222	164	7	of	of	ADP
ajst-26222	164	8	,	,	PUNCT
ajst-26222	164	9	the	the	DET
ajst-26222	164	10	execution	execution	NOUN
ajst-26222	164	11	time	time	NOUN
ajst-26222	164	12	of	of	ADP
ajst-26222	164	13	the	the	DET
ajst-26222	164	14	algorithm	algorithm	NOUN
ajst-26222	164	15	fluctuates	fluctuate	VERB
ajst-26222	164	16	around	around	ADP
ajst-26222	164	17	38ms	38ms	NUM
ajst-26222	164	18	.	.	PUNCT
ajst-26222	165	1	because	because	SCONJ
ajst-26222	165	2	affects	affect	VERB
ajst-26222	165	3	the	the	DET
ajst-26222	165	4	size	size	NOUN
ajst-26222	165	5	of	of	ADP
ajst-26222	165	6	the	the	DET
ajst-26222	165	7	noise	noise	NOUN
ajst-26222	165	8	,	,	PUNCT
ajst-26222	165	9	and	and	CCONJ
ajst-26222	165	10	the	the	DET
ajst-26222	165	11	size	size	NOUN
ajst-26222	165	12	of	of	ADP
ajst-26222	165	13	the	the	DET
ajst-26222	165	14	noise	noise	NOUN
ajst-26222	165	15	has	have	VERB
ajst-26222	165	16	little	little	ADJ
ajst-26222	165	17	effect	effect	NOUN
ajst-26222	165	18	on	on	ADP
ajst-26222	165	19	the	the	DET
ajst-26222	165	20	execution	execution	NOUN
ajst-26222	165	21	time	time	NOUN
ajst-26222	165	22	of	of	ADP
ajst-26222	165	23	the	the	DET
ajst-26222	165	24	algorithm	algorithm	NOUN
ajst-26222	165	25	,	,	PUNCT
ajst-26222	165	26	has	have	VERB
ajst-26222	165	27	basically	basically	ADV
ajst-26222	165	28	no	no	DET
ajst-26222	165	29	effect	effect	NOUN
ajst-26222	165	30	on	on	ADP
ajst-26222	165	31	the	the	DET
ajst-26222	165	32	execution	execution	NOUN
ajst-26222	165	33	time	time	NOUN
ajst-26222	165	34	of	of	ADP
ajst-26222	165	35	the	the	DET
ajst-26222	165	36	algorithm	algorithm	NOUN
ajst-26222	165	37	.	.	PUNCT
ajst-26222	166	1	figure	figure	NOUN
ajst-26222	166	2	3	3	NUM
ajst-26222	166	3	.	.	PUNCT
ajst-26222	166	4	influence	influence	NOUN
ajst-26222	166	5	of	of	ADP
ajst-26222	166	6	k	k	PROPN
ajst-26222	166	7	and	and	CCONJ
ajst-26222	166	8	ε	ε	PROPN
ajst-26222	166	9	on	on	ADP
ajst-26222	166	10	the	the	DET
ajst-26222	166	11	algorithm	algorithm	NOUN
ajst-26222	166	12	execution	execution	NOUN
ajst-26222	166	13	time	time	NOUN
ajst-26222	166	14	6	6	NUM
ajst-26222	166	15	.	.	PUNCT
ajst-26222	167	1	analysis	analysis	NOUN
ajst-26222	167	2	on	on	ADP
ajst-26222	167	3	trajectory	trajectory	NOUN
ajst-26222	167	4	similarity	similarity	NOUN
ajst-26222	167	5	aiming	aim	VERB
ajst-26222	167	6	at	at	ADP
ajst-26222	167	7	the	the	DET
ajst-26222	167	8	security	security	NOUN
ajst-26222	167	9	and	and	CCONJ
ajst-26222	167	10	efficiency	efficiency	NOUN
ajst-26222	167	11	of	of	ADP
ajst-26222	167	12	mobile	mobile	ADJ
ajst-26222	167	13	terminal	terminal	PROPN
ajst-26222	167	14	user	user	PROPN
ajst-26222	167	15	trajectory	trajectory	PROPN
ajst-26222	167	16	privacy	privacy	NOUN
ajst-26222	167	17	protection	protection	NOUN
ajst-26222	167	18	in	in	ADP
ajst-26222	167	19	location	location	NOUN
ajst-26222	167	20	based	base	VERB
ajst-26222	167	21	services	service	NOUN
ajst-26222	167	22	,	,	PUNCT
ajst-26222	167	23	a	a	DET
ajst-26222	167	24	trajectory	trajectory	NOUN
ajst-26222	167	25	privacy	privacy	NOUN
ajst-26222	167	26	protection	protection	NOUN
ajst-26222	167	27	scheme	scheme	NOUN
ajst-26222	167	28	combining	combine	VERB
ajst-26222	167	29	anonymity	anonymity	NOUN
ajst-26222	167	30	and	and	CCONJ
ajst-26222	167	31	differential	differential	NOUN
ajst-26222	167	32	privacy	privacy	NOUN
ajst-26222	167	33	technology	technology	NOUN
ajst-26222	167	34	is	be	AUX
ajst-26222	167	35	proposed	propose	VERB
ajst-26222	167	36	.	.	PUNCT
ajst-26222	168	1	based	base	VERB
ajst-26222	168	2	on	on	ADP
ajst-26222	168	3	the	the	DET
ajst-26222	168	4	anonymity	anonymity	NOUN
ajst-26222	168	5	of	of	ADP
ajst-26222	168	6	user	user	NOUN
ajst-26222	168	7	identity	identity	NOUN
ajst-26222	168	8	,	,	PUNCT
ajst-26222	168	9	the	the	DET
ajst-26222	168	10	scheme	scheme	NOUN
ajst-26222	168	11	uses	use	VERB
ajst-26222	168	12	differential	differential	ADJ
ajst-26222	168	13	privacy	privacy	NOUN
ajst-26222	168	14	mechanism	mechanism	NOUN
ajst-26222	168	15	to	to	PART
ajst-26222	168	16	add	add	VERB
ajst-26222	168	17	laplacian	laplacian	ADJ
ajst-26222	168	18	noise	noise	NOUN
ajst-26222	168	19	to	to	ADP
ajst-26222	168	20	user	user	NOUN
ajst-26222	168	21	trajectories	trajectory	NOUN
ajst-26222	168	22	multiple	multiple	ADJ
ajst-26222	168	23	times	time	NOUN
ajst-26222	168	24	to	to	PART
ajst-26222	168	25	generate	generate	VERB
ajst-26222	168	26	noise	noise	NOUN
ajst-26222	168	27	trajectories	trajectory	NOUN
ajst-26222	168	28	,	,	PUNCT
ajst-26222	168	29	and	and	CCONJ
ajst-26222	168	30	selects	select	VERB
ajst-26222	168	31	noise	noise	VERB
ajst-26222	168	32	users	user	NOUN
ajst-26222	168	33	similar	similar	ADJ
ajst-26222	168	34	to	to	ADP
ajst-26222	168	35	user	user	NOUN
ajst-26222	168	36	trajectories	trajectory	NOUN
ajst-26222	168	37	according	accord	VERB
ajst-26222	168	38	to	to	ADP
ajst-26222	168	39	the	the	DET
ajst-26222	168	40	trajectory	trajectory	NOUN
ajst-26222	168	41	similarity	similarity	NOUN
ajst-26222	168	42	.	.	PUNCT
ajst-26222	169	1	the	the	DET
ajst-26222	169	2	noise	noise	NOUN
ajst-26222	169	3	users	user	NOUN
ajst-26222	169	4	and	and	CCONJ
ajst-26222	169	5	real	real	ADJ
ajst-26222	169	6	users	user	NOUN
ajst-26222	169	7	are	be	AUX
ajst-26222	169	8	set	set	VERB
ajst-26222	169	9	as	as	ADP
ajst-26222	169	10	the	the	DET
ajst-26222	169	11	anonymous	anonymous	PROPN
ajst-26222	169	12	user	user	NOUN
ajst-26222	169	13	group	group	NOUN
ajst-26222	169	14	,	,	PUNCT
ajst-26222	169	15	and	and	CCONJ
ajst-26222	169	16	the	the	DET
ajst-26222	169	17	lbs	lbs	NOUN
ajst-26222	169	18	service	service	NOUN
ajst-26222	169	19	is	be	AUX
ajst-26222	169	20	requested	request	VERB
ajst-26222	169	21	as	as	ADP
ajst-26222	169	22	the	the	DET
ajst-26222	169	23	anonymous	anonymous	PROPN
ajst-26222	169	24	user	user	NOUN
ajst-26222	169	25	group	group	NOUN
ajst-26222	169	26	,	,	PUNCT
ajst-26222	169	27	so	so	SCONJ
ajst-26222	169	28	as	as	SCONJ
ajst-26222	169	29	to	to	PART
ajst-26222	169	30	protect	protect	VERB
ajst-26222	169	31	the	the	DET
ajst-26222	169	32	privacy	privacy	NOUN
ajst-26222	169	33	of	of	ADP
ajst-26222	169	34	user	user	NOUN
ajst-26222	169	35	trajectories	trajectory	NOUN
ajst-26222	169	36	and	and	CCONJ
ajst-26222	169	37	ensure	ensure	VERB
ajst-26222	169	38	the	the	DET
ajst-26222	169	39	service	service	NOUN
ajst-26222	169	40	quality	quality	NOUN
ajst-26222	169	41	of	of	ADP
ajst-26222	169	42	lbs	lbs	NOUN
ajst-26222	169	43	users	user	NOUN
ajst-26222	169	44	.	.	PUNCT
ajst-26222	170	1	through	through	ADP
ajst-26222	170	2	security	security	NOUN
ajst-26222	170	3	analysis	analysis	NOUN
ajst-26222	170	4	,	,	PUNCT
ajst-26222	170	5	the	the	DET
ajst-26222	170	6	scheme	scheme	NOUN
ajst-26222	170	7	satisfies	satisfy	VERB
ajst-26222	170	8	the	the	DET
ajst-26222	170	9	security	security	NOUN
ajst-26222	170	10	features	feature	VERB
ajst-26222	170	11	such	such	ADJ
ajst-26222	170	12	as	as	ADP
ajst-26222	170	13	anonymity	anonymity	NOUN
ajst-26222	170	14	,	,	PUNCT
ajst-26222	170	15	unforgeability	unforgeability	NOUN
ajst-26222	170	16	and	and	CCONJ
ajst-26222	170	17	resistant	resistant	ADJ
ajst-26222	170	18	to	to	ADP
ajst-26222	170	19	impersonation	impersonation	NOUN
ajst-26222	170	20	attack	attack	NOUN
ajst-26222	170	21	.	.	PUNCT
ajst-26222	171	1	finally	finally	ADV
ajst-26222	171	2	,	,	PUNCT
ajst-26222	171	3	simulation	simulation	NOUN
ajst-26222	171	4	experiments	experiment	NOUN
ajst-26222	171	5	are	be	AUX
ajst-26222	171	6	carried	carry	VERB
ajst-26222	171	7	out	out	ADP
ajst-26222	171	8	on	on	ADP
ajst-26222	171	9	the	the	DET
ajst-26222	171	10	scheme	scheme	NOUN
ajst-26222	171	11	from	from	ADP
ajst-26222	171	12	the	the	DET
ajst-26222	171	13	aspects	aspect	NOUN
ajst-26222	171	14	of	of	ADP
ajst-26222	171	15	trajectory	trajectory	NOUN
ajst-26222	171	16	similarity	similarity	NOUN
ajst-26222	171	17	and	and	CCONJ
ajst-26222	171	18	efficiency	efficiency	NOUN
ajst-26222	171	19	.	.	PUNCT
ajst-26222	172	1	the	the	DET
ajst-26222	172	2	results	result	NOUN
ajst-26222	172	3	show	show	VERB
ajst-26222	172	4	that	that	SCONJ
ajst-26222	172	5	the	the	DET
ajst-26222	172	6	scheme	scheme	NOUN
ajst-26222	172	7	is	be	AUX
ajst-26222	172	8	superior	superior	ADJ
ajst-26222	172	9	to	to	ADP
ajst-26222	172	10	other	other	ADJ
ajst-26222	172	11	schemes	scheme	NOUN
ajst-26222	172	12	in	in	ADP
ajst-26222	172	13	terms	term	NOUN
ajst-26222	172	14	of	of	ADP
ajst-26222	172	15	trajectory	trajectory	NOUN
ajst-26222	172	16	similarity	similarity	NOUN
ajst-26222	172	17	and	and	CCONJ
ajst-26222	172	18	algorithm	algorithm	NOUN
ajst-26222	172	19	execution	execution	NOUN
ajst-26222	172	20	time	time	NOUN
ajst-26222	172	21	.	.	PUNCT
ajst-26222	173	1	therefore	therefore	ADV
ajst-26222	173	2	,	,	PUNCT
ajst-26222	173	3	the	the	DET
ajst-26222	173	4	proposed	propose	VERB
ajst-26222	173	5	scheme	scheme	NOUN
ajst-26222	173	6	has	have	VERB
ajst-26222	173	7	certain	certain	ADJ
ajst-26222	173	8	theoretical	theoretical	ADJ
ajst-26222	173	9	significance	significance	NOUN
ajst-26222	173	10	and	and	CCONJ
ajst-26222	173	11	application	application	NOUN
ajst-26222	173	12	value	value	NOUN
ajst-26222	173	13	in	in	ADP
ajst-26222	173	14	trajectory	trajectory	NOUN
ajst-26222	173	15	privacy	privacy	NOUN
ajst-26222	173	16	protection	protection	NOUN
ajst-26222	173	17	.	.	PUNCT
ajst-26222	174	1	acknowledgements	acknowledgement	NOUN
ajst-26222	174	2	this	this	DET
ajst-26222	174	3	work	work	NOUN
ajst-26222	174	4	was	be	AUX
ajst-26222	174	5	supported	support	VERB
ajst-26222	174	6	by	by	ADP
ajst-26222	174	7	the	the	DET
ajst-26222	174	8	national	national	ADJ
ajst-26222	174	9	natural	natural	PROPN
ajst-26222	174	10	science	science	PROPN
ajst-26222	174	11	foundation	foundation	PROPN
ajst-26222	174	12	of	of	ADP
ajst-26222	174	13	china	china	PROPN
ajst-26222	174	14	(	(	PUNCT
ajst-26222	174	15	61872126	61872126	NUM
ajst-26222	174	16	,	,	PUNCT
ajst-26222	174	17	62273290	62273290	NUM
ajst-26222	174	18	)	)	PUNCT
ajst-26222	174	19	;	;	PUNCT
ajst-26222	174	20	the	the	DET
ajst-26222	174	21	science	science	NOUN
ajst-26222	174	22	and	and	CCONJ
ajst-26222	174	23	technology	technology	NOUN
ajst-26222	174	24	research	research	NOUN
ajst-26222	174	25	program	program	NOUN
ajst-26222	174	26	of	of	ADP
ajst-26222	174	27	henan	henan	PROPN
ajst-26222	174	28	province	province	PROPN
ajst-26222	174	29	(	(	PUNCT
ajst-26222	174	30	212102210092	212102210092	NUM
ajst-26222	174	31	,	,	PUNCT
ajst-26222	174	32	222102210078	222102210078	NUM
ajst-26222	174	33	)	)	PUNCT
ajst-26222	174	34	references	reference	NOUN
ajst-26222	174	35	[	[	X
ajst-26222	174	36	1	1	NUM
ajst-26222	174	37	]	]	PUNCT
ajst-26222	174	38	qiu	qiu	PROPN
ajst-26222	174	39	g	g	PROPN
ajst-26222	174	40	,	,	PUNCT
ajst-26222	174	41	tang	tang	X
ajst-26222	174	42	g	g	PROPN
ajst-26222	174	43	,	,	PUNCT
ajst-26222	174	44	li	li	PROPN
ajst-26222	174	45	c	c	PROPN
ajst-26222	174	46	,	,	PUNCT
ajst-26222	174	47	et	et	PROPN
ajst-26222	174	48	al	al	PROPN
ajst-26222	174	49	.	.	PUNCT
ajst-26222	174	50	differentiated	differentiated	ADJ
ajst-26222	174	51	location	location	NOUN
ajst-26222	174	52	privacy	privacy	NOUN
ajst-26222	174	53	protection	protection	NOUN
ajst-26222	174	54	in	in	ADP
ajst-26222	174	55	mobile	mobile	ADJ
ajst-26222	174	56	communication	communication	NOUN
ajst-26222	174	57	services	service	NOUN
ajst-26222	174	58	:	:	PUNCT
ajst-26222	174	59	a	a	DET
ajst-26222	174	60	survey	survey	NOUN
ajst-26222	174	61	from	from	ADP
ajst-26222	174	62	the	the	DET
ajst-26222	174	63	semantic	semantic	ADJ
ajst-26222	174	64	perception	perception	NOUN
ajst-26222	174	65	perspective[j	perspective[j	PROPN
ajst-26222	174	66	]	]	PUNCT
ajst-26222	174	67	.	.	PUNCT
ajst-26222	175	1	acm	acm	PROPN
ajst-26222	175	2	computing	computing	NOUN
ajst-26222	175	3	surveys	survey	NOUN
ajst-26222	175	4	,	,	PUNCT
ajst-26222	175	5	2023	2023	NUM
ajst-26222	175	6	,	,	PUNCT
ajst-26222	175	7	56(3	56(3	NUM
ajst-26222	175	8	):	):	PUNCT
ajst-26222	175	9	1	1	NUM
ajst-26222	175	10	-	-	SYM
ajst-26222	175	11	36	36	NUM
ajst-26222	175	12	.	.	PUNCT
ajst-26222	176	1	[	[	X
ajst-26222	176	2	2	2	NUM
ajst-26222	176	3	]	]	X
ajst-26222	176	4	zhang	zhang	PROPN
ajst-26222	176	5	s	s	PROPN
ajst-26222	176	6	,	,	PUNCT
ajst-26222	176	7	li	li	PROPN
ajst-26222	176	8	m	m	PROPN
ajst-26222	176	9	,	,	PUNCT
ajst-26222	176	10	liang	liang	PROPN
ajst-26222	176	11	w	w	PROPN
ajst-26222	176	12	,	,	PUNCT
ajst-26222	176	13	et	et	PROPN
ajst-26222	176	14	al	al	PROPN
ajst-26222	176	15	.	.	PUNCT
ajst-26222	177	1	a	a	DET
ajst-26222	177	2	survey	survey	NOUN
ajst-26222	177	3	of	of	ADP
ajst-26222	177	4	dummy	dummy	NOUN
ajst-26222	177	5	-	-	PUNCT
ajst-26222	177	6	based	base	VERB
ajst-26222	177	7	location	location	NOUN
ajst-26222	177	8	privacy	privacy	NOUN
ajst-26222	177	9	protection	protection	NOUN
ajst-26222	177	10	techniques	technique	NOUN
ajst-26222	177	11	for	for	ADP
ajst-26222	177	12	location	location	NOUN
ajst-26222	177	13	-	-	PUNCT
ajst-26222	177	14	based	base	VERB
ajst-26222	177	15	services[j	services[j	PROPN
ajst-26222	177	16	]	]	PUNCT
ajst-26222	177	17	.	.	PUNCT
ajst-26222	178	1	sensors	sensor	NOUN
ajst-26222	178	2	,	,	PUNCT
ajst-26222	178	3	2022	2022	NUM
ajst-26222	178	4	,	,	PUNCT
ajst-26222	178	5	22(16	22(16	NUM
ajst-26222	178	6	):	):	PUNCT
ajst-26222	178	7	6141	6141	NUM
ajst-26222	178	8	.	.	PUNCT
ajst-26222	179	1	[	[	X
ajst-26222	179	2	3	3	X
ajst-26222	179	3	]	]	X
ajst-26222	179	4	jiang	jiang	PROPN
ajst-26222	179	5	h	h	PROPN
ajst-26222	179	6	,	,	PUNCT
ajst-26222	179	7	li	li	PROPN
ajst-26222	179	8	j	j	PROPN
ajst-26222	179	9	,	,	PUNCT
ajst-26222	179	10	zhao	zhao	PROPN
ajst-26222	179	11	p	p	X
ajst-26222	179	12	,	,	PUNCT
ajst-26222	179	13	et	et	PROPN
ajst-26222	179	14	al	al	PROPN
ajst-26222	179	15	.	.	PROPN
ajst-26222	179	16	location	location	PROPN
ajst-26222	179	17	privacy	privacy	NOUN
ajst-26222	179	18	-	-	PUNCT
ajst-26222	179	19	preserving	preserve	VERB
ajst-26222	179	20	mechanisms	mechanism	NOUN
ajst-26222	179	21	in	in	ADP
ajst-26222	179	22	location	location	NOUN
ajst-26222	179	23	-	-	PUNCT
ajst-26222	179	24	based	base	VERB
ajst-26222	179	25	services	service	NOUN
ajst-26222	179	26	:	:	PUNCT
ajst-26222	179	27	a	a	DET
ajst-26222	179	28	comprehensive	comprehensive	ADJ
ajst-26222	179	29	survey[j	survey[j	NOUN
ajst-26222	179	30	]	]	PUNCT
ajst-26222	179	31	.	.	PUNCT
ajst-26222	180	1	acm	acm	PROPN
ajst-26222	180	2	computing	computing	NOUN
ajst-26222	180	3	surveys	survey	NOUN
ajst-26222	180	4	(	(	PUNCT
ajst-26222	180	5	csur	csur	NOUN
ajst-26222	180	6	)	)	PUNCT
ajst-26222	180	7	,	,	PUNCT
ajst-26222	180	8	2021	2021	NUM
ajst-26222	180	9	,	,	PUNCT
ajst-26222	180	10	54(1	54(1	NUM
ajst-26222	180	11	):	):	PUNCT
ajst-26222	180	12	136	136	NUM
ajst-26222	180	13	.	.	PUNCT
ajst-26222	181	1	[	[	X
ajst-26222	181	2	4	4	NUM
ajst-26222	181	3	]	]	X
ajst-26222	181	4	cheng	cheng	PROPN
ajst-26222	181	5	s	s	PROPN
ajst-26222	181	6	,	,	PUNCT
ajst-26222	181	7	daochen	daochen	NOUN
ajst-26222	181	8	c	c	NOUN
ajst-26222	181	9	,	,	PUNCT
ajst-26222	181	10	shuiping	shuipe	VERB
ajst-26222	181	11	n	n	PRON
ajst-26222	181	12	i.	i.	PROPN
ajst-26222	181	13	k	k	PROPN
ajst-26222	181	14	anonymous	anonymous	PROPN
ajst-26222	181	15	trajectory	trajectory	PROPN
ajst-26222	181	16	privacy	privacy	PROPN
ajst-26222	181	17	protection	protection	NOUN
ajst-26222	181	18	scheme	scheme	NOUN
ajst-26222	181	19	of	of	ADP
ajst-26222	181	20	personalized	personalized	ADJ
ajst-26222	181	21	differential	differential	NOUN
ajst-26222	181	22	privacy[j	privacy[j	NOUN
ajst-26222	181	23	]	]	PUNCT
ajst-26222	181	24	.	.	PUNCT
ajst-26222	182	1	journal	journal	PROPN
ajst-26222	182	2	of	of	ADP
ajst-26222	182	3	beijing	beijing	PROPN
ajst-26222	182	4	university	university	PROPN
ajst-26222	182	5	of	of	ADP
ajst-26222	182	6	posts	post	NOUN
ajst-26222	182	7	and	and	CCONJ
ajst-26222	182	8	telecommunications	telecommunication	NOUN
ajst-26222	182	9	,	,	PUNCT
ajst-26222	182	10	2023	2023	NUM
ajst-26222	182	11	,	,	PUNCT
ajst-26222	182	12	46(3	46(3	NOUN
ajst-26222	182	13	):	):	PUNCT
ajst-26222	182	14	109	109	NUM
ajst-26222	182	15	.	.	PUNCT
ajst-26222	183	1	[	[	X
ajst-26222	183	2	5	5	X
ajst-26222	183	3	]	]	X
ajst-26222	183	4	sánchez	sánchez	NOUN
ajst-26222	183	5	p	p	NOUN
ajst-26222	183	6	,	,	PUNCT
ajst-26222	183	7	bellogín	bellogín	NOUN
ajst-26222	183	8	a.	a.	NOUN
ajst-26222	183	9	point	point	NOUN
ajst-26222	183	10	-	-	PUNCT
ajst-26222	183	11	of	of	ADP
ajst-26222	183	12	-	-	PUNCT
ajst-26222	183	13	interest	interest	NOUN
ajst-26222	183	14	recommender	recommender	NOUN
ajst-26222	183	15	systems	system	NOUN
ajst-26222	183	16	based	base	VERB
ajst-26222	183	17	on	on	ADP
ajst-26222	183	18	location	location	NOUN
ajst-26222	183	19	-	-	PUNCT
ajst-26222	183	20	based	base	VERB
ajst-26222	183	21	social	social	ADJ
ajst-26222	183	22	networks	network	NOUN
ajst-26222	183	23	:	:	PUNCT
ajst-26222	183	24	a	a	DET
ajst-26222	183	25	survey	survey	NOUN
ajst-26222	183	26	from	from	ADP
ajst-26222	183	27	an	an	DET
ajst-26222	183	28	0	0	NUM
ajst-26222	183	29	0.02	0.02	NUM
ajst-26222	183	30	0.04	0.04	NUM
ajst-26222	183	31	0.06	0.06	NUM
ajst-26222	183	32	0.08	0.08	NUM
ajst-26222	183	33	0.1	0.1	NUM
ajst-26222	183	34	0.12	0.12	NUM
ajst-26222	183	35	0.14	0.14	NUM
ajst-26222	183	36	0.16	0.16	NUM
ajst-26222	183	37	0.18	0.18	NUM
ajst-26222	183	38	2	2	NUM
ajst-26222	183	39	4	4	NUM
ajst-26222	183	40	6	6	NUM
ajst-26222	183	41	8	8	NUM
ajst-26222	183	42	10	10	NUM
ajst-26222	183	43	1	1	NUM
ajst-26222	183	44	2	2	NUM
ajst-26222	183	45	14	14	NUM
ajst-26222	183	46	16	16	NUM
ajst-26222	183	47	18	18	NUM
ajst-26222	183	48	20	20	NUM
ajst-26222	183	49	t	t	PROPN
ajst-26222	183	50	ra	ra	PROPN
ajst-26222	183	51	je	je	PROPN
ajst-26222	183	52	ct	ct	PROPN
ajst-26222	183	53	or	or	CCONJ
ajst-26222	183	54	y	y	PROPN
ajst-26222	183	55	si	si	PROPN
ajst-26222	183	56	m	m	VERB
ajst-26222	184	1	ila	ila	PROPN
ajst-26222	184	2	ri	ri	INTJ
ajst-26222	185	1	ty	ty	INTJ
ajst-26222	186	1	k	k	PROPN
ajst-26222	186	2	scheme	scheme	NOUN
ajst-26222	186	3	in	in	ADP
ajst-26222	186	4	ref	ref	NOUN
ajst-26222	186	5	.	.	PUNCT
ajst-26222	187	1	[	[	X
ajst-26222	187	2	8	8	NUM
ajst-26222	187	3	]	]	SYM
ajst-26222	187	4	scheme	scheme	NOUN
ajst-26222	187	5	in	in	ADP
ajst-26222	187	6	ref	ref	NOUN
ajst-26222	187	7	.	.	PUNCT
ajst-26222	188	1	[	[	X
ajst-26222	188	2	11	11	NUM
ajst-26222	188	3	]	]	PUNCT
ajst-26222	188	4	the	the	DET
ajst-26222	188	5	proposed	propose	VERB
ajst-26222	188	6	scheme	scheme	NOUN
ajst-26222	188	7	0	0	NUM
ajst-26222	188	8	50	50	NUM
ajst-26222	188	9	100	100	NUM
ajst-26222	188	10	150	150	NUM
ajst-26222	188	11	200	200	NUM
ajst-26222	188	12	250	250	NUM
ajst-26222	188	13	300	300	NUM
ajst-26222	188	14	350	350	NUM
ajst-26222	188	15	2	2	NUM
ajst-26222	188	16	4	4	NUM
ajst-26222	188	17	6	6	NUM
ajst-26222	188	18	8	8	NUM
ajst-26222	188	19	10	10	NUM
ajst-26222	188	20	12	12	NUM
ajst-26222	188	21	14	14	NUM
ajst-26222	188	22	16	16	NUM
ajst-26222	188	23	18	18	NUM
ajst-26222	188	24	20	20	NUM
ajst-26222	188	25	a	a	DET
ajst-26222	188	26	lg	lg	NOUN
ajst-26222	188	27	or	or	CCONJ
ajst-26222	188	28	it	it	PRON
ajst-26222	189	1	hm	hm	INTJ
ajst-26222	189	2	e	e	NOUN
ajst-26222	189	3	xe	xe	PROPN
ajst-26222	189	4	cu	cu	PROPN
ajst-26222	189	5	ti	ti	PROPN
ajst-26222	189	6	on	on	ADP
ajst-26222	189	7	t	t	PROPN
ajst-26222	190	1	i	i	PRON
ajst-26222	190	2	m	m	VERB
ajst-26222	190	3	e/	e/	VERB
ajst-26222	190	4	m	m	PROPN
ajst-26222	190	5	s	s	PROPN
ajst-26222	190	6	k	k	PROPN
ajst-26222	190	7	scheme	scheme	NOUN
ajst-26222	190	8	in	in	ADP
ajst-26222	190	9	ref	ref	NOUN
ajst-26222	190	10	.	.	PUNCT
ajst-26222	191	1	[	[	X
ajst-26222	191	2	8	8	NUM
ajst-26222	191	3	]	]	SYM
ajst-26222	191	4	scheme	scheme	NOUN
ajst-26222	191	5	in	in	ADP
ajst-26222	191	6	ref	ref	NOUN
ajst-26222	191	7	.	.	PUNCT
ajst-26222	192	1	[	[	X
ajst-26222	192	2	11	11	NUM
ajst-26222	192	3	]	]	PUNCT
ajst-26222	192	4	the	the	DET
ajst-26222	192	5	proposed	propose	VERB
ajst-26222	192	6	scheme	scheme	NOUN
ajst-26222	192	7	25	25	NUM
ajst-26222	192	8	27	27	NUM
ajst-26222	192	9	29	29	NUM
ajst-26222	192	10	31	31	NUM
ajst-26222	192	11	33	33	NUM
ajst-26222	192	12	35	35	NUM
ajst-26222	192	13	37	37	NUM
ajst-26222	192	14	39	39	NUM
ajst-26222	192	15	41	41	NUM
ajst-26222	192	16	0	0	NUM
ajst-26222	192	17	.25	.25	NUM
ajst-26222	192	18	0	0	NUM
ajst-26222	192	19	.5	.5	NUM
ajst-26222	192	20	0	0	NUM
ajst-26222	192	21	.7	.7	NUM
ajst-26222	192	22	5	5	NUM
ajst-26222	192	23	1	1	NUM
ajst-26222	192	24	1	1	NUM
ajst-26222	192	25	.2	.2	NUM
ajst-26222	192	26	5	5	NUM
ajst-26222	192	27	1	1	NUM
ajst-26222	192	28	.	.	PUNCT
ajst-26222	192	29	5	5	NUM
ajst-26222	192	30	1	1	NUM
ajst-26222	192	31	.	.	PUNCT
ajst-26222	193	1	75	75	NUM
ajst-26222	193	2	2	2	NUM
ajst-26222	193	3	2	2	NUM
ajst-26222	193	4	.	.	PUNCT
ajst-26222	194	1	25	25	NUM
ajst-26222	194	2	a	a	DET
ajst-26222	194	3	lg	lg	NOUN
ajst-26222	194	4	or	or	CCONJ
ajst-26222	194	5	ith	ith	NOUN
ajst-26222	194	6	m	m	PROPN
ajst-26222	194	7	e	e	PROPN
ajst-26222	194	8	xe	xe	PROPN
ajst-26222	194	9	cu	cu	PROPN
ajst-26222	194	10	tio	tio	PROPN
ajst-26222	194	11	n	n	PRON
ajst-26222	194	12	tim	tim	PROPN
ajst-26222	194	13	e/	e/	PROPN
ajst-26222	194	14	m	m	PROPN
ajst-26222	194	15	s	s	PROPN
ajst-26222	194	16	ε	ε	PROPN
ajst-26222	194	17	k=5	k=5	PROPN
ajst-26222	194	18	k=10	k=10	NOUN
ajst-26222	194	19	k=15	k=15	ADP
ajst-26222	194	20	226	226	NUM
ajst-26222	194	21	experimental	experimental	ADJ
ajst-26222	194	22	perspective[j	perspective[j	NOUN
ajst-26222	194	23	]	]	PUNCT
ajst-26222	194	24	.	.	PUNCT
ajst-26222	195	1	acm	acm	PROPN
ajst-26222	195	2	computing	computing	NOUN
ajst-26222	195	3	surveys	survey	NOUN
ajst-26222	195	4	(	(	PUNCT
ajst-26222	195	5	csur	csur	NOUN
ajst-26222	195	6	)	)	PUNCT
ajst-26222	195	7	,	,	PUNCT
ajst-26222	195	8	2022	2022	NUM
ajst-26222	195	9	,	,	PUNCT
ajst-26222	195	10	54(11s	54(11s	NUM
ajst-26222	195	11	):	):	PUNCT
ajst-26222	195	12	1	1	NUM
ajst-26222	195	13	-	-	SYM
ajst-26222	195	14	37	37	NUM
ajst-26222	195	15	.	.	PUNCT
ajst-26222	196	1	[	[	X
ajst-26222	196	2	6	6	NUM
ajst-26222	196	3	]	]	PUNCT
ajst-26222	196	4	mariana	mariana	PROPN
ajst-26222	196	5	c	c	PROPN
ajst-26222	196	6	,	,	PUNCT
ajst-26222	196	7	ricardo	ricardo	PROPN
ajst-26222	196	8	m	m	PROPN
ajst-26222	196	9	,	,	PUNCT
ajst-26222	196	10	vilela	vilela	NOUN
ajst-26222	196	11	jp	jp	NOUN
ajst-26222	196	12	.	.	PUNCT
ajst-26222	197	1	a	a	DET
ajst-26222	197	2	survey	survey	NOUN
ajst-26222	197	3	of	of	ADP
ajst-26222	197	4	privacypreserving	privacypreserve	VERB
ajst-26222	197	5	mechanisms	mechanism	NOUN
ajst-26222	197	6	for	for	ADP
ajst-26222	197	7	heterogeneous	heterogeneous	ADJ
ajst-26222	197	8	data	datum	NOUN
ajst-26222	197	9	types	type	NOUN
ajst-26222	197	10	.	.	PUNCT
ajst-26222	198	1	computer	computer	NOUN
ajst-26222	198	2	science	science	PROPN
ajst-26222	198	3	review	review	PROPN
ajst-26222	198	4	,	,	PUNCT
ajst-26222	198	5	2021	2021	NUM
ajst-26222	198	6	,	,	PUNCT
ajst-26222	198	7	41	41	NUM
ajst-26222	198	8	:	:	PUNCT
ajst-26222	198	9	15p	15p	NOUN
ajst-26222	198	10	.	.	PUNCT
ajst-26222	199	1	[	[	X
ajst-26222	199	2	7	7	NUM
ajst-26222	199	3	]	]	X
ajst-26222	199	4	wazirali	wazirali	PROPN
ajst-26222	199	5	r.	r.	PROPN
ajst-26222	199	6	a	a	DET
ajst-26222	199	7	review	review	NOUN
ajst-26222	199	8	on	on	ADP
ajst-26222	199	9	privacy	privacy	NOUN
ajst-26222	199	10	preservation	preservation	NOUN
ajst-26222	199	11	of	of	ADP
ajst-26222	199	12	locationbased	locationbase	VERB
ajst-26222	199	13	services	service	NOUN
ajst-26222	199	14	in	in	ADP
ajst-26222	199	15	internet	internet	NOUN
ajst-26222	199	16	of	of	ADP
ajst-26222	199	17	thing	thing	NOUN
ajst-26222	199	18	.	.	PUNCT
ajst-26222	200	1	intelligent	intelligent	ADJ
ajst-26222	200	2	automation	automation	NOUN
ajst-26222	200	3	and	and	CCONJ
ajst-26222	200	4	soft	soft	ADJ
ajst-26222	200	5	computing	computing	NOUN
ajst-26222	200	6	,	,	PUNCT
ajst-26222	200	7	2022	2022	NUM
ajst-26222	200	8	,	,	PUNCT
ajst-26222	200	9	31(2	31(2	NUM
ajst-26222	200	10	):	):	PUNCT
ajst-26222	200	11	767	767	NUM
ajst-26222	200	12	-	-	SYM
ajst-26222	200	13	779	779	NUM
ajst-26222	200	14	.	.	PUNCT
ajst-26222	201	1	[	[	X
ajst-26222	201	2	8	8	NUM
ajst-26222	201	3	]	]	X
ajst-26222	201	4	li	li	PROPN
ajst-26222	201	5	f	f	PROPN
ajst-26222	201	6	h	h	PROPN
ajst-26222	201	7	,	,	PUNCT
ajst-26222	201	8	zhang	zhang	PROPN
ajst-26222	201	9	c	c	PROPN
ajst-26222	201	10	,	,	PUNCT
ajst-26222	201	11	niu	niu	PROPN
ajst-26222	201	12	b	b	PROPN
ajst-26222	201	13	,	,	PUNCT
ajst-26222	201	14	et	et	PROPN
ajst-26222	202	1	al	al	PROPN
ajst-26222	202	2	.	.	PROPN
ajst-26222	202	3	efficient	efficient	ADJ
ajst-26222	202	4	scheme	scheme	NOUN
ajst-26222	202	5	for	for	ADP
ajst-26222	202	6	user	user	NOUN
ajst-26222	202	7	’s	’s	PART
ajst-26222	202	8	trajectory	trajectory	NOUN
ajst-26222	202	9	privacy[j	privacy[j	PROPN
ajst-26222	202	10	]	]	PUNCT
ajst-26222	202	11	.	.	PUNCT
ajst-26222	203	1	journal	journal	PROPN
ajst-26222	203	2	on	on	ADP
ajst-26222	203	3	communications	communication	NOUN
ajst-26222	203	4	,	,	PUNCT
ajst-26222	203	5	2015	2015	NUM
ajst-26222	203	6	,	,	PUNCT
ajst-26222	203	7	36(12	36(12	NUM
ajst-26222	203	8	):	):	PUNCT
ajst-26222	203	9	114	114	NUM
ajst-26222	203	10	-	-	SYM
ajst-26222	203	11	123	123	NUM
ajst-26222	203	12	.	.	PUNCT
ajst-26222	204	1	[	[	X
ajst-26222	204	2	9	9	NUM
ajst-26222	204	3	]	]	X
ajst-26222	204	4	tian	tian	PROPN
ajst-26222	204	5	j	j	PROPN
ajst-26222	204	6	,	,	PUNCT
ajst-26222	204	7	zhu	zhu	PROPN
ajst-26222	204	8	q.	q.	PROPN
ajst-26222	204	9	a	a	DET
ajst-26222	204	10	differential	differential	PROPN
ajst-26222	204	11	privacy	privacy	NOUN
ajst-26222	204	12	trajectory	trajectory	NOUN
ajst-26222	204	13	data	datum	NOUN
ajst-26222	204	14	storage	storage	NOUN
ajst-26222	204	15	and	and	CCONJ
ajst-26222	204	16	publishing	publishing	NOUN
ajst-26222	204	17	scheme	scheme	NOUN
ajst-26222	204	18	based	base	VERB
ajst-26222	204	19	on	on	ADP
ajst-26222	204	20	radix	radix	PROPN
ajst-26222	204	21	tree[j	tree[j	PROPN
ajst-26222	204	22	]	]	PUNCT
ajst-26222	204	23	.	.	PUNCT
ajst-26222	205	1	concurrency	concurrency	NOUN
ajst-26222	205	2	and	and	CCONJ
ajst-26222	205	3	computation	computation	NOUN
ajst-26222	205	4	:	:	PUNCT
ajst-26222	205	5	practice	practice	NOUN
ajst-26222	205	6	and	and	CCONJ
ajst-26222	205	7	experience	experience	NOUN
ajst-26222	205	8	,	,	PUNCT
ajst-26222	205	9	2023	2023	NUM
ajst-26222	205	10	:	:	PUNCT
ajst-26222	205	11	e7731	e7731	NOUN
ajst-26222	205	12	.	.	PUNCT
ajst-26222	206	1	[	[	X
ajst-26222	206	2	10	10	NUM
ajst-26222	206	3	]	]	X
ajst-26222	206	4	du	du	X
ajst-26222	206	5	x	x	X
ajst-26222	206	6	,	,	PUNCT
ajst-26222	206	7	zhu	zhu	PROPN
ajst-26222	206	8	h	h	NOUN
ajst-26222	206	9	,	,	PUNCT
ajst-26222	206	10	zheng	zheng	PROPN
ajst-26222	206	11	y	y	PROPN
ajst-26222	206	12	,	,	PUNCT
ajst-26222	206	13	et	et	PROPN
ajst-26222	206	14	al	al	PROPN
ajst-26222	206	15	.	.	PUNCT
ajst-26222	206	16	a	a	DET
ajst-26222	206	17	semantic	semantic	ADJ
ajst-26222	206	18	-	-	PUNCT
ajst-26222	206	19	preserving	preserve	VERB
ajst-26222	206	20	scheme	scheme	NOUN
ajst-26222	206	21	to	to	ADP
ajst-26222	206	22	trajectory	trajectory	NOUN
ajst-26222	206	23	synthesis	synthesis	NOUN
ajst-26222	206	24	using	use	VERB
ajst-26222	206	25	differential	differential	NOUN
ajst-26222	206	26	privacy[j	privacy[j	NOUN
ajst-26222	206	27	]	]	PUNCT
ajst-26222	206	28	.	.	PUNCT
ajst-26222	207	1	ieee	ieee	PROPN
ajst-26222	207	2	internet	internet	NOUN
ajst-26222	207	3	of	of	ADP
ajst-26222	207	4	things	thing	NOUN
ajst-26222	207	5	journal	journal	NOUN
ajst-26222	207	6	,	,	PUNCT
ajst-26222	207	7	2023	2023	NUM
ajst-26222	207	8	.	.	PUNCT
ajst-26222	208	1	[	[	X
ajst-26222	208	2	11	11	NUM
ajst-26222	208	3	]	]	X
ajst-26222	208	4	h.	h.	PROPN
ajst-26222	208	5	chen	chen	PROPN
ajst-26222	208	6	,	,	PUNCT
ajst-26222	208	7	s.	s.	PROPN
ajst-26222	208	8	li	li	PROPN
ajst-26222	208	9	and	and	CCONJ
ajst-26222	208	10	z.	z.	PROPN
ajst-26222	208	11	zhang	zhang	PROPN
ajst-26222	208	12	,	,	PUNCT
ajst-26222	208	13	"	"	PUNCT
ajst-26222	208	14	a	a	DET
ajst-26222	208	15	differential	differential	NOUN
ajst-26222	208	16	privacy	privacy	NOUN
ajst-26222	208	17	based	base	VERB
ajst-26222	208	18	(	(	PUNCT
ajst-26222	208	19	kψ)-anonymity	kψ)-anonymity	NOUN
ajst-26222	208	20	method	method	NOUN
ajst-26222	208	21	for	for	ADP
ajst-26222	208	22	trajectory	trajectory	NOUN
ajst-26222	208	23	data	datum	NOUN
ajst-26222	208	24	publishing	publishing	NOUN
ajst-26222	208	25	,	,	PUNCT
ajst-26222	208	26	"	"	PUNCT
ajst-26222	208	27	computers	computer	NOUN
ajst-26222	208	28	,	,	PUNCT
ajst-26222	208	29	materials	material	NOUN
ajst-26222	208	30	&	&	CCONJ
ajst-26222	208	31	continua	continua	PROPN
ajst-26222	208	32	,	,	PUNCT
ajst-26222	208	33	vol	vol	NOUN
ajst-26222	208	34	.	.	PROPN
ajst-26222	208	35	65	65	NUM
ajst-26222	208	36	,	,	PUNCT
ajst-26222	208	37	no.3	no.3	VERB
ajst-26222	208	38	,	,	PUNCT
ajst-26222	208	39	pp	pp	ADJ
ajst-26222	208	40	.	.	PUNCT
ajst-26222	209	1	2665	2665	NUM
ajst-26222	209	2	–	–	PUNCT
ajst-26222	209	3	2685	2685	NUM
ajst-26222	209	4	,	,	PUNCT
ajst-26222	209	5	2020	2020	NUM
ajst-26222	209	6	.	.	PUNCT
ajst-26222	210	1	[	[	X
ajst-26222	210	2	12	12	NUM
ajst-26222	210	3	]	]	X
ajst-26222	210	4	zhao	zhao	PROPN
ajst-26222	210	5	x	x	PROPN
ajst-26222	210	6	,	,	PUNCT
ajst-26222	210	7	pi	pi	PROPN
ajst-26222	210	8	d	d	PROPN
ajst-26222	210	9	,	,	PUNCT
ajst-26222	210	10	chen	chen	PROPN
ajst-26222	210	11	j.	j.	PROPN
ajst-26222	210	12	novel	novel	PROPN
ajst-26222	210	13	trajectory	trajectory	NOUN
ajst-26222	210	14	privacy	privacy	NOUN
ajst-26222	210	15	-	-	PUNCT
ajst-26222	210	16	preserving	preserve	VERB
ajst-26222	210	17	method	method	NOUN
ajst-26222	210	18	based	base	VERB
ajst-26222	210	19	on	on	ADP
ajst-26222	210	20	clustering	clustering	NOUN
ajst-26222	210	21	using	use	VERB
ajst-26222	210	22	differential	differential	NOUN
ajst-26222	210	23	privacy[j	privacy[j	NOUN
ajst-26222	210	24	]	]	PUNCT
ajst-26222	210	25	.	.	PUNCT
ajst-26222	211	1	expert	expert	NOUN
ajst-26222	211	2	systems	system	NOUN
ajst-26222	211	3	with	with	ADP
ajst-26222	211	4	applications	application	NOUN
ajst-26222	211	5	,	,	PUNCT
ajst-26222	211	6	2020	2020	NUM
ajst-26222	211	7	,	,	PUNCT
ajst-26222	211	8	149	149	NUM
ajst-26222	211	9	:	:	SYM
ajst-26222	211	10	113241	113241	NUM
ajst-26222	211	11	.	.	PUNCT
ajst-26222	212	1	[	[	X
ajst-26222	212	2	13	13	NUM
ajst-26222	212	3	]	]	X
ajst-26222	212	4	chen	chen	PROPN
ajst-26222	212	5	s	s	PROPN
ajst-26222	212	6	,	,	PUNCT
ajst-26222	212	7	fu	fu	PROPN
ajst-26222	212	8	a	a	NOUN
ajst-26222	212	9	,	,	PUNCT
ajst-26222	212	10	shen	shen	PROPN
ajst-26222	212	11	j	j	PROPN
ajst-26222	212	12	,	,	PUNCT
ajst-26222	212	13	et	et	PROPN
ajst-26222	212	14	al	al	PROPN
ajst-26222	212	15	.	.	PROPN
ajst-26222	212	16	rnn	rnn	PROPN
ajst-26222	212	17	-	-	PUNCT
ajst-26222	212	18	dp	dp	NOUN
ajst-26222	212	19	:	:	PUNCT
ajst-26222	212	20	a	a	DET
ajst-26222	212	21	new	new	ADJ
ajst-26222	212	22	differential	differential	NOUN
ajst-26222	212	23	privacy	privacy	NOUN
ajst-26222	212	24	scheme	scheme	NOUN
ajst-26222	212	25	base	base	NOUN
ajst-26222	212	26	on	on	ADP
ajst-26222	212	27	recurrent	recurrent	ADJ
ajst-26222	212	28	neural	neural	ADJ
ajst-26222	212	29	network	network	NOUN
ajst-26222	212	30	for	for	ADP
ajst-26222	212	31	dynamic	dynamic	ADJ
ajst-26222	212	32	trajectory	trajectory	NOUN
ajst-26222	212	33	privacy	privacy	NOUN
ajst-26222	212	34	protection[j	protection[j	PROPN
ajst-26222	212	35	]	]	PUNCT
ajst-26222	212	36	.	.	PUNCT
ajst-26222	212	37	journal	journal	PROPN
ajst-26222	212	38	of	of	ADP
ajst-26222	212	39	network	network	NOUN
ajst-26222	212	40	and	and	CCONJ
ajst-26222	212	41	computer	computer	NOUN
ajst-26222	212	42	applications	application	NOUN
ajst-26222	212	43	,	,	PUNCT
ajst-26222	212	44	2020	2020	NUM
ajst-26222	212	45	,	,	PUNCT
ajst-26222	212	46	168	168	NUM
ajst-26222	212	47	:	:	SYM
ajst-26222	212	48	102736	102736	NUM
ajst-26222	212	49	.	.	PUNCT
ajst-26222	213	1	[	[	X
ajst-26222	213	2	14	14	NUM
ajst-26222	213	3	]	]	PUNCT
ajst-26222	213	4	ou	ou	X
ajst-26222	213	5	l	l	NOUN
ajst-26222	213	6	,	,	PUNCT
ajst-26222	213	7	qin	qin	PROPN
ajst-26222	213	8	z	z	PROPN
ajst-26222	213	9	,	,	PUNCT
ajst-26222	213	10	liao	liao	PROPN
ajst-26222	213	11	s	s	PROPN
ajst-26222	213	12	,	,	PUNCT
ajst-26222	213	13	et	et	PROPN
ajst-26222	213	14	al	al	PROPN
ajst-26222	213	15	.	.	PUNCT
ajst-26222	214	1	releasing	release	VERB
ajst-26222	214	2	correlated	correlate	VERB
ajst-26222	214	3	trajectories	trajectory	NOUN
ajst-26222	214	4	:	:	PUNCT
ajst-26222	214	5	towards	towards	ADP
ajst-26222	214	6	high	high	ADJ
ajst-26222	214	7	utility	utility	NOUN
ajst-26222	214	8	and	and	CCONJ
ajst-26222	214	9	optimal	optimal	ADJ
ajst-26222	214	10	differential	differential	NOUN
ajst-26222	214	11	privacy[j	privacy[j	NOUN
ajst-26222	214	12	]	]	PUNCT
ajst-26222	214	13	.	.	PUNCT
ajst-26222	215	1	ieee	ieee	NOUN
ajst-26222	215	2	transactions	transaction	NOUN
ajst-26222	215	3	on	on	ADP
ajst-26222	215	4	dependable	dependable	ADJ
ajst-26222	215	5	and	and	CCONJ
ajst-26222	215	6	secure	secure	ADJ
ajst-26222	215	7	computing	computing	NOUN
ajst-26222	215	8	,	,	PUNCT
ajst-26222	215	9	2018	2018	NUM
ajst-26222	215	10	,	,	PUNCT
ajst-26222	215	11	17(5	17(5	NUM
ajst-26222	215	12	):	):	PUNCT
ajst-26222	215	13	1109	1109	NUM
ajst-26222	215	14	-	-	SYM
ajst-26222	215	15	1123	1123	NUM
ajst-26222	215	16	.	.	PUNCT
ajst-26222	216	1	[	[	X
ajst-26222	216	2	15	15	NUM
ajst-26222	216	3	]	]	X
ajst-26222	216	4	shang	shang	PROPN
ajst-26222	216	5	t	t	PROPN
ajst-26222	216	6	,	,	PUNCT
ajst-26222	216	7	zhao	zhao	PROPN
ajst-26222	216	8	z	z	PROPN
ajst-26222	216	9	,	,	PUNCT
ajst-26222	216	10	ren	ren	PROPN
ajst-26222	216	11	x	x	SYM
ajst-26222	216	12	,	,	PUNCT
ajst-26222	216	13	et	et	PROPN
ajst-26222	216	14	al	al	PROPN
ajst-26222	216	15	.	.	PROPN
ajst-26222	216	16	differential	differential	ADJ
ajst-26222	216	17	identifiability	identifiability	NOUN
ajst-26222	216	18	clustering	cluster	VERB
ajst-26222	216	19	algorithms	algorithm	NOUN
ajst-26222	216	20	for	for	ADP
ajst-26222	216	21	big	big	ADJ
ajst-26222	216	22	data	datum	NOUN
ajst-26222	216	23	analysis[j	analysis[j	PROPN
ajst-26222	216	24	]	]	PUNCT
ajst-26222	216	25	.	.	PUNCT
ajst-26222	217	1	science	science	PROPN
ajst-26222	217	2	china	china	PROPN
ajst-26222	217	3	information	information	PROPN
ajst-26222	217	4	sciences	sciences	PROPN
ajst-26222	217	5	,	,	PUNCT
ajst-26222	217	6	2021	2021	NUM
ajst-26222	217	7	,	,	PUNCT
ajst-26222	217	8	64	64	NUM
ajst-26222	217	9	:	:	SYM
ajst-26222	217	10	1	1	NUM
ajst-26222	217	11	-	-	SYM
ajst-26222	217	12	18	18	NUM
ajst-26222	217	13	.	.	PUNCT
ajst-26222	218	1	[	[	X
ajst-26222	218	2	16	16	NUM
ajst-26222	218	3	]	]	PUNCT
ajst-26222	218	4	dwork	dwork	PROPN
ajst-26222	218	5	c	c	PROPN
ajst-26222	218	6	,	,	PUNCT
ajst-26222	218	7	roth	roth	PROPN
ajst-26222	218	8	a.	a.	NOUN
ajst-26222	218	9	the	the	DET
ajst-26222	218	10	algorithmic	algorithmic	ADJ
ajst-26222	218	11	foundations	foundation	NOUN
ajst-26222	218	12	of	of	ADP
ajst-26222	218	13	differential	differential	NOUN
ajst-26222	218	14	privacy[j	privacy[j	PROPN
ajst-26222	218	15	]	]	PUNCT
ajst-26222	218	16	.	.	PUNCT
ajst-26222	219	1	foundations	foundation	NOUN
ajst-26222	219	2	and	and	CCONJ
ajst-26222	219	3	trends	trend	NOUN
ajst-26222	219	4	®	®	NOUN
ajst-26222	219	5	in	in	ADP
ajst-26222	219	6	theoretical	theoretical	ADJ
ajst-26222	219	7	computer	computer	NOUN
ajst-26222	219	8	science	science	NOUN
ajst-26222	219	9	,	,	PUNCT
ajst-26222	219	10	2014	2014	NUM
ajst-26222	219	11	,	,	PUNCT
ajst-26222	219	12	9(3–4	9(3–4	NUM
ajst-26222	219	13	):	):	PUNCT
ajst-26222	219	14	211	211	NUM
ajst-26222	219	15	-	-	SYM
ajst-26222	219	16	407	407	NUM
ajst-26222	219	17	.	.	PUNCT
ajst-26222	220	1	[	[	X
ajst-26222	220	2	17	17	NUM
ajst-26222	220	3	]	]	X
ajst-26222	220	4	fernandes	fernandes	PROPN
ajst-26222	220	5	n	n	CCONJ
ajst-26222	220	6	,	,	PUNCT
ajst-26222	220	7	mciver	mciver	SCONJ
ajst-26222	220	8	a	a	X
ajst-26222	220	9	,	,	PUNCT
ajst-26222	220	10	morgan	morgan	PROPN
ajst-26222	220	11	c.	c.	PROPN
ajst-26222	220	12	the	the	DET
ajst-26222	220	13	laplace	laplace	NOUN
ajst-26222	220	14	mechanism	mechanism	NOUN
ajst-26222	220	15	has	have	VERB
ajst-26222	220	16	optimal	optimal	ADJ
ajst-26222	220	17	utility	utility	NOUN
ajst-26222	220	18	for	for	ADP
ajst-26222	220	19	differential	differential	ADJ
ajst-26222	220	20	privacy	privacy	NOUN
ajst-26222	220	21	over	over	ADP
ajst-26222	220	22	continuous	continuous	ADJ
ajst-26222	220	23	queries[c]//2021	queries[c]//2021	PROPN
ajst-26222	220	24	36th	36th	ADJ
ajst-26222	220	25	annual	annual	ADJ
ajst-26222	220	26	acm	acm	NOUN
ajst-26222	220	27	/	/	SYM
ajst-26222	220	28	ieee	ieee	NOUN
ajst-26222	220	29	symposium	symposium	NOUN
ajst-26222	220	30	on	on	ADP
ajst-26222	220	31	logic	logic	NOUN
ajst-26222	220	32	in	in	ADP
ajst-26222	220	33	computer	computer	NOUN
ajst-26222	220	34	science	science	NOUN
ajst-26222	220	35	(	(	PUNCT
ajst-26222	220	36	lics	lic	NOUN
ajst-26222	220	37	)	)	PUNCT
ajst-26222	220	38	.	.	PUNCT
ajst-26222	221	1	ieee	ieee	NOUN
ajst-26222	221	2	,	,	PUNCT
ajst-26222	221	3	2021	2021	NUM
ajst-26222	221	4	:	:	PUNCT
ajst-26222	221	5	1	1	NUM
ajst-26222	221	6	-	-	SYM
ajst-26222	221	7	12	12	NUM
ajst-26222	221	8	.	.	PUNCT