id sid tid token lemma pos ajst-4783 1 1 academic academic ADJ ajst-4783 1 2 journal journal NOUN ajst-4783 1 3 of of ADP ajst-4783 1 4 science science NOUN ajst-4783 1 5 and and CCONJ ajst-4783 1 6 technology technology NOUN ajst-4783 1 7 issn issn NOUN ajst-4783 1 8 : : PUNCT ajst-4783 1 9 2771 2771 NUM ajst-4783 1 10 - - SYM ajst-4783 1 11 3032 3032 NUM ajst-4783 1 12 | | NOUN ajst-4783 1 13 vol vol NOUN ajst-4783 1 14 . . PROPN ajst-4783 2 1 4 4 NUM ajst-4783 2 2 , , PUNCT ajst-4783 2 3 no no INTJ ajst-4783 2 4 . . NOUN ajst-4783 2 5 3 3 NUM ajst-4783 2 6 , , PUNCT ajst-4783 2 7 2022 2022 NUM ajst-4783 2 8 42 42 NUM ajst-4783 2 9 differential differential NOUN ajst-4783 2 10 privacy‐based privacy‐base VERB ajst-4783 2 11 personalized personalize VERB ajst-4783 2 12 recommendation recommendation NOUN ajst-4783 2 13 service service NOUN ajst-4783 2 14 for for ADP ajst-4783 2 15 " " PUNCT ajst-4783 2 16 helping help VERB ajst-4783 2 17 farmers farmer NOUN ajst-4783 2 18 " " PUNCT ajst-4783 2 19 tourism tourism NOUN ajst-4783 2 20 in in ADP ajst-4783 2 21 guizhou guizhou PROPN ajst-4783 2 22 province province PROPN ajst-4783 2 23 zifang zifang PROPN ajst-4783 2 24 xiao xiao PROPN ajst-4783 2 25 , , PUNCT ajst-4783 2 26 ting ting PROPN ajst-4783 2 27 li li PROPN ajst-4783 2 28 and and CCONJ ajst-4783 2 29 zhuo zhuo PROPN ajst-4783 2 30 liu liu PROPN ajst-4783 2 31 school school PROPN ajst-4783 2 32 of of ADP ajst-4783 2 33 mathematics mathematic NOUN ajst-4783 2 34 and and CCONJ ajst-4783 2 35 big big ADJ ajst-4783 2 36 data datum NOUN ajst-4783 2 37 , , PUNCT ajst-4783 2 38 guizhou guizhou PROPN ajst-4783 2 39 education education PROPN ajst-4783 2 40 university university PROPN ajst-4783 2 41 , , PUNCT ajst-4783 2 42 guizhou guizhou PROPN ajst-4783 2 43 550000 550000 NUM ajst-4783 2 44 , , PUNCT ajst-4783 2 45 china china PROPN ajst-4783 2 46 abstract abstract NOUN ajst-4783 2 47 : : PUNCT ajst-4783 2 48 the the DET ajst-4783 2 49 revitalization revitalization NOUN ajst-4783 2 50 of of ADP ajst-4783 2 51 the the DET ajst-4783 2 52 countryside countryside NOUN ajst-4783 2 53 is be AUX ajst-4783 2 54 an an DET ajst-4783 2 55 important important ADJ ajst-4783 2 56 strategy strategy NOUN ajst-4783 2 57 proposed propose VERB ajst-4783 2 58 in in ADP ajst-4783 2 59 the the DET ajst-4783 2 60 report report NOUN ajst-4783 2 61 of of ADP ajst-4783 2 62 the the DET ajst-4783 2 63 19th 19th ADJ ajst-4783 2 64 party party NOUN ajst-4783 2 65 congress congress PROPN ajst-4783 2 66 . . PUNCT ajst-4783 3 1 rural rural ADJ ajst-4783 3 2 tourism tourism NOUN ajst-4783 3 3 in in ADP ajst-4783 3 4 guizhou guizhou PROPN ajst-4783 3 5 province province PROPN ajst-4783 3 6 is be AUX ajst-4783 3 7 the the DET ajst-4783 3 8 key key NOUN ajst-4783 3 9 to to ADP ajst-4783 3 10 the the DET ajst-4783 3 11 development development NOUN ajst-4783 3 12 of of ADP ajst-4783 3 13 " " PUNCT ajst-4783 3 14 big big ADJ ajst-4783 3 15 tourism tourism NOUN ajst-4783 3 16 " " PUNCT ajst-4783 3 17 in in ADP ajst-4783 3 18 the the DET ajst-4783 3 19 14th 14th ADJ ajst-4783 3 20 five five NUM ajst-4783 3 21 - - PUNCT ajst-4783 3 22 year year NOUN ajst-4783 3 23 plan plan NOUN ajst-4783 3 24 of of ADP ajst-4783 3 25 the the DET ajst-4783 3 26 province province NOUN ajst-4783 3 27 , , PUNCT ajst-4783 3 28 and and CCONJ ajst-4783 3 29 also also ADV ajst-4783 3 30 the the DET ajst-4783 3 31 driving drive VERB ajst-4783 3 32 force force NOUN ajst-4783 3 33 of of ADP ajst-4783 3 34 rural rural ADJ ajst-4783 3 35 revitalization revitalization NOUN ajst-4783 3 36 . . PUNCT ajst-4783 4 1 most most ADJ ajst-4783 4 2 of of ADP ajst-4783 4 3 the the DET ajst-4783 4 4 current current ADJ ajst-4783 4 5 rural rural ADJ ajst-4783 4 6 tourism tourism NOUN ajst-4783 4 7 personalized personalize VERB ajst-4783 4 8 recommendation recommendation NOUN ajst-4783 4 9 systems system NOUN ajst-4783 4 10 rely rely VERB ajst-4783 4 11 on on ADP ajst-4783 4 12 user user NOUN ajst-4783 4 13 information information NOUN ajst-4783 4 14 , , PUNCT ajst-4783 4 15 and and CCONJ ajst-4783 4 16 the the DET ajst-4783 4 17 exposure exposure NOUN ajst-4783 4 18 of of ADP ajst-4783 4 19 sensitive sensitive ADJ ajst-4783 4 20 user user NOUN ajst-4783 4 21 information information NOUN ajst-4783 4 22 has have AUX ajst-4783 4 23 become become VERB ajst-4783 4 24 an an DET ajst-4783 4 25 obstacle obstacle NOUN ajst-4783 4 26 to to ADP ajst-4783 4 27 the the DET ajst-4783 4 28 development development NOUN ajst-4783 4 29 of of ADP ajst-4783 4 30 smart smart ADJ ajst-4783 4 31 tourism tourism NOUN ajst-4783 4 32 . . PUNCT ajst-4783 5 1 through through ADP ajst-4783 5 2 the the DET ajst-4783 5 3 genetic genetic ADJ ajst-4783 5 4 matrix matrix NOUN ajst-4783 5 5 decomposition decomposition NOUN ajst-4783 5 6 recommendation recommendation NOUN ajst-4783 5 7 algorithm algorithm NOUN ajst-4783 5 8 based base VERB ajst-4783 5 9 on on ADP ajst-4783 5 10 satisfying satisfy VERB ajst-4783 5 11 differential differential ADJ ajst-4783 5 12 privacy privacy NOUN ajst-4783 5 13 protection protection NOUN ajst-4783 5 14 and and CCONJ ajst-4783 5 15 differential differential NOUN ajst-4783 5 16 privacy privacy NOUN ajst-4783 5 17 recommendation recommendation NOUN ajst-4783 5 18 algorithm algorithm NOUN ajst-4783 5 19 for for ADP ajst-4783 5 20 sparse sparse ADJ ajst-4783 5 21 data datum NOUN ajst-4783 5 22 , , PUNCT ajst-4783 5 23 privacy privacy NOUN ajst-4783 5 24 protection protection NOUN ajst-4783 5 25 of of ADP ajst-4783 5 26 similarity similarity NOUN ajst-4783 5 27 calculation calculation NOUN ajst-4783 5 28 , , PUNCT ajst-4783 5 29 accuracy accuracy NOUN ajst-4783 5 30 of of ADP ajst-4783 5 31 recommendation recommendation NOUN ajst-4783 5 32 and and CCONJ ajst-4783 5 33 data datum NOUN ajst-4783 5 34 security security NOUN ajst-4783 5 35 are be AUX ajst-4783 5 36 realized realize VERB ajst-4783 5 37 . . PUNCT ajst-4783 6 1 actively actively ADV ajst-4783 6 2 develop develop VERB ajst-4783 6 3 secure secure ADJ ajst-4783 6 4 and and CCONJ ajst-4783 6 5 personalized personalized ADJ ajst-4783 6 6 rural rural ADJ ajst-4783 6 7 tourism tourism NOUN ajst-4783 6 8 recommendations recommendation NOUN ajst-4783 6 9 so so SCONJ ajst-4783 6 10 that that SCONJ ajst-4783 6 11 the the DET ajst-4783 6 12 majority majority NOUN ajst-4783 6 13 of of ADP ajst-4783 6 14 farmers farmer NOUN ajst-4783 6 15 can can AUX ajst-4783 6 16 benefit benefit VERB ajst-4783 6 17 from from ADP ajst-4783 6 18 them they PRON ajst-4783 6 19 . . PUNCT ajst-4783 7 1 keywords keyword NOUN ajst-4783 7 2 : : PUNCT ajst-4783 7 3 rural rural ADJ ajst-4783 7 4 tourism tourism NOUN ajst-4783 7 5 , , PUNCT ajst-4783 7 6 genetic genetic ADJ ajst-4783 7 7 matrix matrix NOUN ajst-4783 7 8 decomposition decomposition NOUN ajst-4783 7 9 recommendation recommendation NOUN ajst-4783 7 10 algorithm algorithm NOUN ajst-4783 7 11 satisfying satisfying NOUN ajst-4783 7 12 differential differential PROPN ajst-4783 7 13 privacy privacy NOUN ajst-4783 7 14 preservation preservation NOUN ajst-4783 7 15 , , PUNCT ajst-4783 7 16 differential differential NOUN ajst-4783 7 17 privacy privacy NOUN ajst-4783 7 18 recommendation recommendation NOUN ajst-4783 7 19 algorithm algorithm NOUN ajst-4783 7 20 for for ADP ajst-4783 7 21 sparse sparse ADJ ajst-4783 7 22 data datum NOUN ajst-4783 7 23 . . PUNCT ajst-4783 8 1 1 1 X ajst-4783 8 2 . . X ajst-4783 8 3 introduction introduction NOUN ajst-4783 8 4 guizhou guizhou PROPN ajst-4783 8 5 will will AUX ajst-4783 8 6 usher usher PROPN ajst-4783 8 7 in in ADP ajst-4783 8 8 a a DET ajst-4783 8 9 new new ADJ ajst-4783 8 10 historical historical ADJ ajst-4783 8 11 opportunity opportunity NOUN ajst-4783 8 12 , , PUNCT ajst-4783 8 13 according accord VERB ajst-4783 8 14 to to ADP ajst-4783 8 15 the the DET ajst-4783 8 16 document document NOUN ajst-4783 8 17 " " PUNCT ajst-4783 8 18 opinions opinion NOUN ajst-4783 8 19 on on ADP ajst-4783 8 20 supporting support VERB ajst-4783 8 21 guizhou guizhou NOUN ajst-4783 8 22 to to PART ajst-4783 8 23 break break VERB ajst-4783 8 24 new new ADJ ajst-4783 8 25 ground ground NOUN ajst-4783 8 26 in in ADP ajst-4783 8 27 the the DET ajst-4783 8 28 new new ADJ ajst-4783 8 29 era era NOUN ajst-4783 8 30 of of ADP ajst-4783 8 31 western western ADJ ajst-4783 8 32 development development NOUN ajst-4783 8 33 " " PUNCT ajst-4783 8 34 on on ADP ajst-4783 8 35 . . PUNCT ajst-4783 9 1 tourism tourism NOUN ajst-4783 9 2 , , PUNCT ajst-4783 9 3 as as ADP ajst-4783 9 4 the the DET ajst-4783 9 5 characteristic characteristic ADJ ajst-4783 9 6 advantageous advantageous ADJ ajst-4783 9 7 industry industry NOUN ajst-4783 9 8 of of ADP ajst-4783 9 9 guizhou guizhou PROPN ajst-4783 9 10 and and CCONJ ajst-4783 9 11 the the DET ajst-4783 9 12 new new ADJ ajst-4783 9 13 pillar pillar NOUN ajst-4783 9 14 industry industry NOUN ajst-4783 9 15 that that PRON ajst-4783 9 16 can can AUX ajst-4783 9 17 pull pull VERB ajst-4783 9 18 regional regional ADJ ajst-4783 9 19 affluence affluence NOUN ajst-4783 9 20 and and CCONJ ajst-4783 9 21 achieve achieve VERB ajst-4783 9 22 sustainable sustainable ADJ ajst-4783 9 23 development development NOUN ajst-4783 9 24 , , PUNCT ajst-4783 9 25 has have AUX ajst-4783 9 26 been be AUX ajst-4783 9 27 confirmed confirm VERB ajst-4783 9 28 by by ADP ajst-4783 9 29 more more ADJ ajst-4783 9 30 and and CCONJ ajst-4783 9 31 more more ADJ ajst-4783 9 32 practice practice NOUN ajst-4783 9 33 and and CCONJ ajst-4783 9 34 recognized recognize VERB ajst-4783 9 35 by by ADP ajst-4783 9 36 the the DET ajst-4783 9 37 government government NOUN ajst-4783 9 38 , , PUNCT ajst-4783 9 39 industry industry NOUN ajst-4783 9 40 and and CCONJ ajst-4783 9 41 farmers farmer NOUN ajst-4783 9 42 . . PUNCT ajst-4783 10 1 therefore therefore ADV ajst-4783 10 2 , , PUNCT ajst-4783 10 3 it it PRON ajst-4783 10 4 is be AUX ajst-4783 10 5 more more ADV ajst-4783 10 6 important important ADJ ajst-4783 10 7 to to PART ajst-4783 10 8 seize seize VERB ajst-4783 10 9 the the DET ajst-4783 10 10 opportunity opportunity NOUN ajst-4783 10 11 of of ADP ajst-4783 10 12 western western ADJ ajst-4783 10 13 development development NOUN ajst-4783 10 14 and and CCONJ ajst-4783 10 15 achieve achieve VERB ajst-4783 10 16 a a DET ajst-4783 10 17 key key ADJ ajst-4783 10 18 breakthrough breakthrough NOUN ajst-4783 10 19 . . PUNCT ajst-4783 11 1 based base VERB ajst-4783 11 2 on on ADP ajst-4783 11 3 this this DET ajst-4783 11 4 paper paper NOUN ajst-4783 11 5 , , PUNCT ajst-4783 11 6 we we PRON ajst-4783 11 7 study study VERB ajst-4783 11 8 the the DET ajst-4783 11 9 personalized personalized ADJ ajst-4783 11 10 recommendation recommendation NOUN ajst-4783 11 11 service service NOUN ajst-4783 11 12 of of ADP ajst-4783 11 13 " " PUNCT ajst-4783 11 14 helping help VERB ajst-4783 11 15 farmers farmer NOUN ajst-4783 11 16 " " PUNCT ajst-4783 11 17 tourism tourism NOUN ajst-4783 11 18 in in ADP ajst-4783 11 19 guizhou guizhou PROPN ajst-4783 11 20 province province NOUN ajst-4783 11 21 based base VERB ajst-4783 11 22 on on ADP ajst-4783 11 23 differential differential ADJ ajst-4783 11 24 privacy privacy NOUN ajst-4783 11 25 , , PUNCT ajst-4783 11 26 and and CCONJ ajst-4783 11 27 provide provide VERB ajst-4783 11 28 " " PUNCT ajst-4783 11 29 personalized personalized ADJ ajst-4783 11 30 and and CCONJ ajst-4783 11 31 customized customize VERB ajst-4783 11 32 guizhou guizhou NOUN ajst-4783 11 33 tour tour NOUN ajst-4783 11 34 " " PUNCT ajst-4783 11 35 service service NOUN ajst-4783 11 36 for for ADP ajst-4783 11 37 groups group NOUN ajst-4783 11 38 of of ADP ajst-4783 11 39 all all DET ajst-4783 11 40 levels level NOUN ajst-4783 11 41 to to PART ajst-4783 11 42 form form VERB ajst-4783 11 43 scale scale NOUN ajst-4783 11 44 benefits benefit NOUN ajst-4783 11 45 . . PUNCT ajst-4783 12 1 differential differential NOUN ajst-4783 12 2 privacy[1 privacy[1 PROPN ajst-4783 12 3 ] ] PUNCT ajst-4783 12 4 is be AUX ajst-4783 12 5 a a DET ajst-4783 12 6 new new ADJ ajst-4783 12 7 secrecy secrecy NOUN ajst-4783 12 8 system system NOUN ajst-4783 12 9 based base VERB ajst-4783 12 10 on on ADP ajst-4783 12 11 stochastic stochastic ADJ ajst-4783 12 12 chaos chaos NOUN ajst-4783 12 13 techniques technique NOUN ajst-4783 12 14 , , PUNCT ajst-4783 12 15 which which PRON ajst-4783 12 16 strictly strictly ADV ajst-4783 12 17 applies apply VERB ajst-4783 12 18 mathematical mathematical ADJ ajst-4783 12 19 definitions definition NOUN ajst-4783 12 20 . . PUNCT ajst-4783 13 1 it it PRON ajst-4783 13 2 can can AUX ajst-4783 13 3 quantify quantify VERB ajst-4783 13 4 users user NOUN ajst-4783 13 5 ' ' PART ajst-4783 13 6 privacy privacy NOUN ajst-4783 13 7 and and CCONJ ajst-4783 13 8 also also ADV ajst-4783 13 9 defend defend VERB ajst-4783 13 10 against against ADP ajst-4783 13 11 background background NOUN ajst-4783 13 12 knowledge knowledge NOUN ajst-4783 13 13 attacks attack NOUN ajst-4783 13 14 and and CCONJ ajst-4783 13 15 synthetic synthetic ADJ ajst-4783 13 16 attacks attack NOUN ajst-4783 13 17 from from ADP ajst-4783 13 18 attackers[2 attackers[2 PROPN ajst-4783 13 19 ] ] PUNCT ajst-4783 13 20 . . PUNCT ajst-4783 14 1 differential differential PROPN ajst-4783 14 2 privacy privacy NOUN ajst-4783 14 3 is be AUX ajst-4783 14 4 increasingly increasingly ADV ajst-4783 14 5 used use VERB ajst-4783 14 6 in in ADP ajst-4783 14 7 data datum NOUN ajst-4783 14 8 mining mining NOUN ajst-4783 14 9 , , PUNCT ajst-4783 14 10 data datum NOUN ajst-4783 14 11 distribution distribution NOUN ajst-4783 14 12 , , PUNCT ajst-4783 14 13 and and CCONJ ajst-4783 14 14 location location NOUN ajst-4783 14 15 services service NOUN ajst-4783 14 16 , , PUNCT ajst-4783 14 17 and and CCONJ ajst-4783 14 18 has have VERB ajst-4783 14 19 significant significant ADJ ajst-4783 14 20 advantages advantage NOUN ajst-4783 14 21 over over ADP ajst-4783 14 22 other other ADJ ajst-4783 14 23 privacy privacy NOUN ajst-4783 14 24 - - PUNCT ajst-4783 14 25 preserving preserve VERB ajst-4783 14 26 techniques technique NOUN ajst-4783 14 27 such such ADJ ajst-4783 14 28 as as ADP ajst-4783 14 29 random random ADJ ajst-4783 14 30 interference interference NOUN ajst-4783 14 31 and and CCONJ ajst-4783 14 32 data datum NOUN ajst-4783 14 33 exchange exchange NOUN ajst-4783 14 34 for for ADP ajst-4783 14 35 privacy privacy NOUN ajst-4783 14 36 protection protection NOUN ajst-4783 14 37 of of ADP ajst-4783 14 38 clustering cluster VERB ajst-4783 14 39 analysis analysis NOUN ajst-4783 15 1 data[4 data[4 PROPN ajst-4783 15 2 ] ] PUNCT ajst-4783 15 3 . . PUNCT ajst-4783 16 1 differential differential PROPN ajst-4783 16 2 privacy privacy NOUN ajst-4783 16 3 has have VERB ajst-4783 16 4 robust robust ADJ ajst-4783 16 5 privacypreserving privacypreserving NOUN ajst-4783 16 6 capability capability NOUN ajst-4783 16 7 , , PUNCT ajst-4783 16 8 but but CCONJ ajst-4783 16 9 it it PRON ajst-4783 16 10 requires require VERB ajst-4783 16 11 a a DET ajst-4783 16 12 third third ADJ ajst-4783 16 13 party party NOUN ajst-4783 16 14 that that PRON ajst-4783 16 15 can can AUX ajst-4783 16 16 be be AUX ajst-4783 16 17 trusted trust VERB ajst-4783 16 18 to to PART ajst-4783 16 19 handle handle VERB ajst-4783 16 20 these these DET ajst-4783 16 21 data datum NOUN ajst-4783 16 22 , , PUNCT ajst-4783 16 23 while while SCONJ ajst-4783 16 24 data datum NOUN ajst-4783 16 25 leakage leakage NOUN ajst-4783 16 26 caused[7 caused[7 NOUN ajst-4783 16 27 ] ] PUNCT ajst-4783 16 28 by by ADP ajst-4783 16 29 the the DET ajst-4783 16 30 third third ADJ ajst-4783 16 31 party party NOUN ajst-4783 16 32 is be AUX ajst-4783 16 33 numerous numerous ADJ ajst-4783 16 34 , , PUNCT ajst-4783 16 35 such such ADJ ajst-4783 16 36 as as SCONJ ajst-4783 16 37 the the DET ajst-4783 16 38 current current ADJ ajst-4783 16 39 rural rural ADJ ajst-4783 16 40 tourism tourism NOUN ajst-4783 16 41 personalized personalize VERB ajst-4783 16 42 recommendation recommendation NOUN ajst-4783 16 43 system system NOUN ajst-4783 16 44 mostly mostly ADV ajst-4783 16 45 relies rely VERB ajst-4783 16 46 on on ADP ajst-4783 16 47 user user NOUN ajst-4783 16 48 information information NOUN ajst-4783 16 49 , , PUNCT ajst-4783 16 50 and and CCONJ ajst-4783 16 51 the the DET ajst-4783 16 52 exposure exposure NOUN ajst-4783 16 53 of of ADP ajst-4783 16 54 sensitive sensitive ADJ ajst-4783 16 55 user user NOUN ajst-4783 16 56 information information NOUN ajst-4783 16 57 becomes become VERB ajst-4783 16 58 an an DET ajst-4783 16 59 obstacle obstacle NOUN ajst-4783 16 60 to to ADP ajst-4783 16 61 tourism tourism NOUN ajst-4783 16 62 development development NOUN ajst-4783 16 63 , , PUNCT ajst-4783 16 64 which which PRON ajst-4783 16 65 not not PART ajst-4783 16 66 only only ADV ajst-4783 16 67 causes cause VERB ajst-4783 16 68 the the DET ajst-4783 16 69 leakage leakage NOUN ajst-4783 16 70 of of ADP ajst-4783 16 71 user user NOUN ajst-4783 16 72 privacy privacy NOUN ajst-4783 16 73 information information NOUN ajst-4783 16 74 , , PUNCT ajst-4783 16 75 but but CCONJ ajst-4783 16 76 also also ADV ajst-4783 16 77 seriously seriously ADV ajst-4783 16 78 damages damage VERB ajst-4783 16 79 the the DET ajst-4783 16 80 reputation reputation NOUN ajst-4783 16 81 of of ADP ajst-4783 16 82 tourism tourism NOUN ajst-4783 16 83 software software NOUN ajst-4783 16 84 this this PRON ajst-4783 16 85 not not PART ajst-4783 16 86 only only ADV ajst-4783 16 87 causes cause VERB ajst-4783 16 88 the the DET ajst-4783 16 89 leakage leakage NOUN ajst-4783 16 90 of of ADP ajst-4783 16 91 user user NOUN ajst-4783 16 92 privacy privacy NOUN ajst-4783 16 93 information[9 information[9 PROPN ajst-4783 16 94 ] ] PUNCT ajst-4783 16 95 , , PUNCT ajst-4783 16 96 but but CCONJ ajst-4783 16 97 also also ADV ajst-4783 16 98 seriously seriously ADV ajst-4783 16 99 damages damage VERB ajst-4783 16 100 the the DET ajst-4783 16 101 reputation reputation NOUN ajst-4783 16 102 of of ADP ajst-4783 16 103 tourism tourism NOUN ajst-4783 16 104 software software NOUN ajst-4783 16 105 . . PUNCT ajst-4783 17 1 on on ADP ajst-4783 17 2 the the DET ajst-4783 17 3 premise premise NOUN ajst-4783 17 4 of of ADP ajst-4783 17 5 ensuring ensure VERB ajst-4783 17 6 the the DET ajst-4783 17 7 availability availability NOUN ajst-4783 17 8 of of ADP ajst-4783 17 9 data datum NOUN ajst-4783 17 10 , , PUNCT ajst-4783 17 11 but but CCONJ ajst-4783 17 12 also also ADV ajst-4783 17 13 to to PART ajst-4783 17 14 meet meet VERB ajst-4783 17 15 the the DET ajst-4783 17 16 two two NUM ajst-4783 17 17 algorithms algorithm NOUN ajst-4783 17 18 . . PUNCT ajst-4783 18 1 by by ADP ajst-4783 18 2 perturbing perturb VERB ajst-4783 18 3 the the DET ajst-4783 18 4 data datum NOUN ajst-4783 18 5 at at ADP ajst-4783 18 6 the the DET ajst-4783 18 7 user user NOUN ajst-4783 18 8 side side NOUN ajst-4783 18 9 , , PUNCT ajst-4783 18 10 the the DET ajst-4783 18 11 de de ADJ ajst-4783 18 12 - - ADJ ajst-4783 18 13 third third ADJ ajst-4783 18 14 party party NOUN ajst-4783 18 15 protection protection NOUN ajst-4783 18 16 of of ADP ajst-4783 18 17 user user NOUN ajst-4783 18 18 privacy privacy NOUN ajst-4783 18 19 is be AUX ajst-4783 18 20 achieved achieve VERB ajst-4783 18 21 . . PUNCT ajst-4783 19 1 in in ADP ajst-4783 19 2 addition addition NOUN ajst-4783 19 3 , , PUNCT ajst-4783 19 4 differential differential ADJ ajst-4783 19 5 privacy privacy NOUN ajst-4783 19 6 techniques technique NOUN ajst-4783 19 7 can can AUX ajst-4783 19 8 still still ADV ajst-4783 19 9 provide provide VERB ajst-4783 19 10 effective effective ADJ ajst-4783 19 11 protection protection NOUN ajst-4783 19 12 when when SCONJ ajst-4783 19 13 an an DET ajst-4783 19 14 attacker attacker NOUN ajst-4783 19 15 knows know VERB ajst-4783 19 16 all all DET ajst-4783 19 17 records record NOUN ajst-4783 19 18 except except SCONJ ajst-4783 19 19 sensitive sensitive ADJ ajst-4783 19 20 ones one NOUN ajst-4783 19 21 . . PUNCT ajst-4783 20 1 the the DET ajst-4783 20 2 effect effect NOUN ajst-4783 20 3 is be AUX ajst-4783 20 4 that that SCONJ ajst-4783 20 5 user user NOUN ajst-4783 20 6 records record NOUN ajst-4783 20 7 can can AUX ajst-4783 20 8 be be AUX ajst-4783 20 9 masked mask VERB ajst-4783 20 10 , , PUNCT ajst-4783 20 11 guaranteeing guarantee VERB ajst-4783 20 12 privacy privacy NOUN ajst-4783 20 13 security security NOUN ajst-4783 20 14 while while SCONJ ajst-4783 20 15 safeguarding safeguard VERB ajst-4783 20 16 the the DET ajst-4783 20 17 availability availability NOUN ajst-4783 20 18 of of ADP ajst-4783 20 19 data datum NOUN ajst-4783 20 20 . . PUNCT ajst-4783 21 1 it it PRON ajst-4783 21 2 not not PART ajst-4783 21 3 only only ADV ajst-4783 21 4 allows allow VERB ajst-4783 21 5 users user NOUN ajst-4783 21 6 to to PART ajst-4783 21 7 experience experience VERB ajst-4783 21 8 personalized personalized ADJ ajst-4783 21 9 travel travel NOUN ajst-4783 21 10 recommendation recommendation NOUN ajst-4783 21 11 service service NOUN ajst-4783 21 12 but but CCONJ ajst-4783 21 13 also also ADV ajst-4783 21 14 protects protect VERB ajst-4783 21 15 users user NOUN ajst-4783 21 16 ' ' PART ajst-4783 21 17 information information NOUN ajst-4783 21 18 security security NOUN ajst-4783 21 19 , , PUNCT ajst-4783 21 20 so so SCONJ ajst-4783 21 21 that that SCONJ ajst-4783 21 22 tourists tourist NOUN ajst-4783 21 23 from from ADP ajst-4783 21 24 all all ADV ajst-4783 21 25 over over ADP ajst-4783 21 26 the the DET ajst-4783 21 27 world world NOUN ajst-4783 21 28 can can AUX ajst-4783 21 29 realize realize VERB ajst-4783 21 30 " " PUNCT ajst-4783 21 31 easy easy ADJ ajst-4783 21 32 travel travel NOUN ajst-4783 21 33 " " PUNCT ajst-4783 21 34 , , PUNCT ajst-4783 21 35 " " PUNCT ajst-4783 21 36 safe safe ADJ ajst-4783 21 37 travel travel NOUN ajst-4783 21 38 " " PUNCT ajst-4783 21 39 and and CCONJ ajst-4783 21 40 " " PUNCT ajst-4783 21 41 enjoyable enjoyable ADJ ajst-4783 21 42 travel travel NOUN ajst-4783 21 43 " " PUNCT ajst-4783 21 44 when when SCONJ ajst-4783 21 45 they they PRON ajst-4783 21 46 come come VERB ajst-4783 21 47 to to ADP ajst-4783 21 48 guizhou guizhou NOUN ajst-4783 21 49 . . PUNCT ajst-4783 22 1 the the DET ajst-4783 22 2 service service NOUN ajst-4783 22 3 of of ADP ajst-4783 22 4 " " PUNCT ajst-4783 22 5 easy easy ADJ ajst-4783 22 6 tour tour NOUN ajst-4783 22 7 " " PUNCT ajst-4783 22 8 , , PUNCT ajst-4783 22 9 " " PUNCT ajst-4783 22 10 safe safe ADJ ajst-4783 22 11 tour tour NOUN ajst-4783 22 12 " " PUNCT ajst-4783 22 13 and and CCONJ ajst-4783 22 14 " " PUNCT ajst-4783 22 15 enjoy enjoy VERB ajst-4783 22 16 tour tour NOUN ajst-4783 22 17 " " PUNCT ajst-4783 22 18 is be AUX ajst-4783 22 19 available available ADJ ajst-4783 22 20 . . PUNCT ajst-4783 23 1 2 2 X ajst-4783 23 2 . . X ajst-4783 23 3 data datum NOUN ajst-4783 23 4 sources source NOUN ajst-4783 23 5 and and CCONJ ajst-4783 23 6 research research NOUN ajst-4783 23 7 methods method NOUN ajst-4783 23 8 2.1 2.1 NUM ajst-4783 23 9 . . PUNCT ajst-4783 24 1 data datum NOUN ajst-4783 24 2 source source NOUN ajst-4783 24 3 as as SCONJ ajst-4783 24 4 shown show VERB ajst-4783 24 5 in in ADP ajst-4783 24 6 the the DET ajst-4783 24 7 figure figure NOUN ajst-4783 24 8 1 1 NUM ajst-4783 24 9 , , PUNCT ajst-4783 24 10 the the DET ajst-4783 24 11 big big ADJ ajst-4783 24 12 difference difference NOUN ajst-4783 24 13 between between ADP ajst-4783 24 14 the the DET ajst-4783 24 15 data datum NOUN ajst-4783 24 16 of of ADP ajst-4783 24 17 famous famous ADJ ajst-4783 24 18 tourist tourist NOUN ajst-4783 24 19 attractions attraction NOUN ajst-4783 24 20 and and CCONJ ajst-4783 24 21 non non ADJ ajst-4783 24 22 - - ADJ ajst-4783 24 23 famous famous ADJ ajst-4783 24 24 tourist tourist NOUN ajst-4783 24 25 attractions attraction NOUN ajst-4783 24 26 in in ADP ajst-4783 24 27 each each DET ajst-4783 24 28 city city NOUN ajst-4783 24 29 of of ADP ajst-4783 24 30 guizhou guizhou PROPN ajst-4783 24 31 province province PROPN ajst-4783 24 32 . . PUNCT ajst-4783 25 1 it it PRON ajst-4783 25 2 can can AUX ajst-4783 25 3 be be AUX ajst-4783 25 4 seen see VERB ajst-4783 25 5 that that SCONJ ajst-4783 25 6 guizhou guizhou NOUN ajst-4783 25 7 province province NOUN ajst-4783 25 8 is be AUX ajst-4783 25 9 very very ADV ajst-4783 25 10 rich rich ADJ ajst-4783 25 11 in in ADP ajst-4783 25 12 tourism tourism NOUN ajst-4783 25 13 resources resource NOUN ajst-4783 25 14 , , PUNCT ajst-4783 25 15 especially especially ADV ajst-4783 25 16 karst karst PROPN ajst-4783 25 17 landscapes landscape NOUN ajst-4783 25 18 . . PUNCT ajst-4783 26 1 however however ADV ajst-4783 26 2 , , PUNCT ajst-4783 26 3 due due ADP ajst-4783 26 4 to to ADP ajst-4783 26 5 the the DET ajst-4783 26 6 lack lack NOUN ajst-4783 26 7 of of ADP ajst-4783 26 8 good good ADJ ajst-4783 26 9 promotion promotion NOUN ajst-4783 26 10 channels channel NOUN ajst-4783 26 11 , , PUNCT ajst-4783 26 12 these these DET ajst-4783 26 13 attention attention NOUN ajst-4783 26 14 is be AUX ajst-4783 26 15 not not PART ajst-4783 26 16 high high ADJ ajst-4783 26 17 . . PUNCT ajst-4783 27 1 through through ADP ajst-4783 27 2 market market NOUN ajst-4783 27 3 research research NOUN ajst-4783 27 4 and and CCONJ ajst-4783 27 5 analysis analysis NOUN ajst-4783 27 6 it it PRON ajst-4783 27 7 is be AUX ajst-4783 27 8 known know VERB ajst-4783 27 9 that that SCONJ ajst-4783 27 10 there there PRON ajst-4783 27 11 are be VERB ajst-4783 27 12 more more ADJ ajst-4783 27 13 than than ADP ajst-4783 27 14 1000 1000 NUM ajst-4783 27 15 developable developable ADJ ajst-4783 27 16 tourist tourist NOUN ajst-4783 27 17 attractions attraction NOUN ajst-4783 27 18 in in ADP ajst-4783 27 19 the the DET ajst-4783 27 20 province province NOUN ajst-4783 27 21 . . PUNCT ajst-4783 28 1 here here ADV ajst-4783 28 2 , , PUNCT ajst-4783 28 3 there there PRON ajst-4783 28 4 are be VERB ajst-4783 28 5 towering tower VERB ajst-4783 28 6 wondrous wondrous ADJ ajst-4783 28 7 peaks peak NOUN ajst-4783 28 8 everywhere everywhere ADV ajst-4783 28 9 , , PUNCT ajst-4783 28 10 strange strange ADJ ajst-4783 28 11 rocks rock NOUN ajst-4783 28 12 , , PUNCT ajst-4783 28 13 splashing splash VERB ajst-4783 28 14 mountain mountain NOUN ajst-4783 28 15 springs spring NOUN ajst-4783 28 16 , , PUNCT ajst-4783 28 17 vast vast ADJ ajst-4783 28 18 lakes lake NOUN ajst-4783 28 19 and and CCONJ ajst-4783 28 20 marshes marsh NOUN ajst-4783 28 21 , , PUNCT ajst-4783 28 22 ancient ancient ADJ ajst-4783 28 23 caves cave NOUN ajst-4783 28 24 , , PUNCT ajst-4783 28 25 all all PRON ajst-4783 28 26 showing show VERB ajst-4783 28 27 the the DET ajst-4783 28 28 unique unique ADJ ajst-4783 28 29 , , PUNCT ajst-4783 28 30 ancient ancient ADJ ajst-4783 28 31 and and CCONJ ajst-4783 28 32 mysterious mysterious ADJ ajst-4783 28 33 charm charm NOUN ajst-4783 28 34 of of ADP ajst-4783 28 35 guizhou guizhou PROPN ajst-4783 28 36 plateau plateau NOUN ajst-4783 28 37 . . PUNCT ajst-4783 29 1 therefore therefore ADV ajst-4783 29 2 , , PUNCT ajst-4783 29 3 it it PRON ajst-4783 29 4 is be AUX ajst-4783 29 5 more more ADV ajst-4783 29 6 important important ADJ ajst-4783 29 7 to to PART ajst-4783 29 8 seize seize VERB ajst-4783 29 9 the the DET ajst-4783 29 10 opportunity opportunity NOUN ajst-4783 29 11 of of ADP ajst-4783 29 12 western western ADJ ajst-4783 29 13 development development NOUN ajst-4783 29 14 and and CCONJ ajst-4783 29 15 achieve achieve VERB ajst-4783 29 16 key key ADJ ajst-4783 29 17 breakthroughs breakthrough NOUN ajst-4783 29 18 . . PUNCT ajst-4783 30 1 on on ADP ajst-4783 30 2 the the DET ajst-4783 30 3 basis basis NOUN ajst-4783 30 4 of of ADP ajst-4783 30 5 this this PRON ajst-4783 30 6 , , PUNCT ajst-4783 30 7 we we PRON ajst-4783 30 8 will will AUX ajst-4783 30 9 study study VERB ajst-4783 30 10 the the DET ajst-4783 30 11 personalized personalized ADJ ajst-4783 30 12 recommendation recommendation NOUN ajst-4783 30 13 service service NOUN ajst-4783 30 14 of of ADP ajst-4783 30 15 " " PUNCT ajst-4783 30 16 helping help VERB ajst-4783 30 17 farmers farmer NOUN ajst-4783 30 18 " " PUNCT ajst-4783 30 19 tourism tourism NOUN ajst-4783 30 20 in in ADP ajst-4783 30 21 guizhou guizhou PROPN ajst-4783 30 22 province province NOUN ajst-4783 30 23 based base VERB ajst-4783 30 24 on on ADP ajst-4783 30 25 differential differential ADJ ajst-4783 30 26 privacy privacy NOUN ajst-4783 30 27 , , PUNCT ajst-4783 30 28 and and CCONJ ajst-4783 30 29 provide provide VERB ajst-4783 30 30 " " PUNCT ajst-4783 30 31 personalized personalized ADJ ajst-4783 30 32 and and CCONJ ajst-4783 30 33 customized customize VERB ajst-4783 30 34 guizhou guizhou NOUN ajst-4783 30 35 tour tour NOUN ajst-4783 30 36 " " PUNCT ajst-4783 30 37 service service NOUN ajst-4783 30 38 for for ADP ajst-4783 30 39 groups group NOUN ajst-4783 30 40 at at ADP ajst-4783 30 41 all all DET ajst-4783 30 42 levels level NOUN ajst-4783 30 43 to to PART ajst-4783 30 44 form form VERB ajst-4783 30 45 scale scale NOUN ajst-4783 30 46 benefits benefit NOUN ajst-4783 30 47 . . PUNCT ajst-4783 31 1 at at ADP ajst-4783 31 2 the the DET ajst-4783 31 3 same same ADJ ajst-4783 31 4 time time NOUN ajst-4783 31 5 , , PUNCT ajst-4783 31 6 based base VERB ajst-4783 31 7 on on ADP ajst-4783 31 8 the the DET ajst-4783 31 9 two two NUM ajst-4783 31 10 algorithms algorithm NOUN ajst-4783 31 11 , , PUNCT ajst-4783 31 12 we we PRON ajst-4783 31 13 will will AUX ajst-4783 31 14 actively actively ADV ajst-4783 31 15 develop develop VERB ajst-4783 31 16 personalized personalized ADJ ajst-4783 31 17 tourism tourism NOUN ajst-4783 31 18 , , PUNCT ajst-4783 31 19 safe safe ADJ ajst-4783 31 20 tourism tourism NOUN ajst-4783 31 21 and and CCONJ ajst-4783 31 22 rural rural ADJ ajst-4783 31 23 tourism tourism NOUN ajst-4783 31 24 , , PUNCT ajst-4783 31 25 so so SCONJ ajst-4783 31 26 that that SCONJ ajst-4783 31 27 all all DET ajst-4783 31 28 farmers farmer NOUN ajst-4783 31 29 can can AUX ajst-4783 31 30 benefit benefit VERB ajst-4783 31 31 from from ADP ajst-4783 31 32 the the DET ajst-4783 31 33 development development NOUN ajst-4783 31 34 of of ADP ajst-4783 31 35 rural rural ADJ ajst-4783 31 36 tourism tourism NOUN ajst-4783 31 37 . . PUNCT ajst-4783 32 1 43 43 NUM ajst-4783 32 2 figure figure NOUN ajst-4783 32 3 1 1 NUM ajst-4783 32 4 . . PUNCT ajst-4783 32 5 statistics statistic NOUN ajst-4783 32 6 of of ADP ajst-4783 32 7 tourist tourist NOUN ajst-4783 32 8 attractions attraction NOUN ajst-4783 32 9 by by ADP ajst-4783 32 10 city city NOUN ajst-4783 32 11 in in ADP ajst-4783 32 12 guizhou guizhou PROPN ajst-4783 32 13 province province PROPN ajst-4783 32 14 2.2 2.2 NUM ajst-4783 32 15 . . PUNCT ajst-4783 33 1 research research NOUN ajst-4783 33 2 methodology methodology NOUN ajst-4783 33 3 at at ADP ajst-4783 33 4 present present ADJ ajst-4783 33 5 , , PUNCT ajst-4783 33 6 more more ADJ ajst-4783 33 7 than than ADP ajst-4783 33 8 90 90 NUM ajst-4783 33 9 % % NOUN ajst-4783 33 10 of of ADP ajst-4783 33 11 the the DET ajst-4783 33 12 travel travel NOUN ajst-4783 33 13 platforms platform NOUN ajst-4783 33 14 on on ADP ajst-4783 33 15 the the DET ajst-4783 33 16 market market NOUN ajst-4783 33 17 , , PUNCT ajst-4783 33 18 personalized personalized ADJ ajst-4783 33 19 travel travel NOUN ajst-4783 33 20 need need VERB ajst-4783 33 21 to to PART ajst-4783 33 22 obtain obtain VERB ajst-4783 33 23 the the DET ajst-4783 33 24 user user NOUN ajst-4783 33 25 's 's PART ajst-4783 33 26 personal personal ADJ ajst-4783 33 27 information information NOUN ajst-4783 33 28 for for ADP ajst-4783 33 29 data data NOUN ajst-4783 33 30 mining mining NOUN ajst-4783 33 31 and and CCONJ ajst-4783 33 32 data datum NOUN ajst-4783 33 33 analysis analysis NOUN ajst-4783 33 34 , , PUNCT ajst-4783 33 35 if if SCONJ ajst-4783 33 36 you you PRON ajst-4783 33 37 want want VERB ajst-4783 33 38 to to PART ajst-4783 33 39 achieve achieve VERB ajst-4783 33 40 intelligent intelligent ADJ ajst-4783 33 41 and and CCONJ ajst-4783 33 42 accurate accurate ADJ ajst-4783 33 43 analysis analysis NOUN ajst-4783 33 44 of of ADP ajst-4783 33 45 personal personal ADJ ajst-4783 33 46 recommendations recommendation NOUN ajst-4783 33 47 , , PUNCT ajst-4783 33 48 for for ADP ajst-4783 33 49 the the DET ajst-4783 33 50 user user NOUN ajst-4783 33 51 's 's PART ajst-4783 33 52 " " PUNCT ajst-4783 33 53 attention attention NOUN ajst-4783 33 54 " " PUNCT ajst-4783 33 55 , , PUNCT ajst-4783 33 56 " " PUNCT ajst-4783 33 57 collection collection NOUN ajst-4783 33 58 " " PUNCT ajst-4783 33 59 , , PUNCT ajst-4783 33 60 " " PUNCT ajst-4783 33 61 search search NOUN ajst-4783 33 62 " " PUNCT ajst-4783 33 63 , , PUNCT ajst-4783 33 64 " " PUNCT ajst-4783 33 65 browsing browse VERB ajst-4783 33 66 preferences preference NOUN ajst-4783 33 67 " " PUNCT ajst-4783 33 68 and and CCONJ ajst-4783 33 69 other other ADJ ajst-4783 33 70 network network NOUN ajst-4783 33 71 behavior behavior NOUN ajst-4783 33 72 data datum NOUN ajst-4783 33 73 is be AUX ajst-4783 33 74 the the DET ajst-4783 33 75 " " PUNCT ajst-4783 33 76 cornerstone cornerstone NOUN ajst-4783 33 77 " " PUNCT ajst-4783 33 78 of of ADP ajst-4783 33 79 personalized personalized ADJ ajst-4783 33 80 recommendations recommendation NOUN ajst-4783 33 81 . . PUNCT ajst-4783 34 1 " " PUNCT ajst-4783 34 2 search search NOUN ajst-4783 34 3 " " PUNCT ajst-4783 34 4 , , PUNCT ajst-4783 34 5 " " PUNCT ajst-4783 34 6 browsing browse VERB ajst-4783 34 7 preferences preference NOUN ajst-4783 34 8 " " PUNCT ajst-4783 34 9 and and CCONJ ajst-4783 34 10 other other ADJ ajst-4783 34 11 network network NOUN ajst-4783 34 12 behavior behavior NOUN ajst-4783 34 13 data datum NOUN ajst-4783 34 14 analysis analysis NOUN ajst-4783 34 15 , , PUNCT ajst-4783 34 16 is be AUX ajst-4783 34 17 the the DET ajst-4783 34 18 " " PUNCT ajst-4783 34 19 cornerstone cornerstone NOUN ajst-4783 34 20 " " PUNCT ajst-4783 34 21 of of ADP ajst-4783 34 22 personalized personalized ADJ ajst-4783 34 23 recommendations recommendation NOUN ajst-4783 34 24 , , PUNCT ajst-4783 34 25 and and CCONJ ajst-4783 34 26 at at ADP ajst-4783 34 27 the the DET ajst-4783 34 28 same same ADJ ajst-4783 34 29 time time NOUN ajst-4783 34 30 also also ADV ajst-4783 34 31 meet meet VERB ajst-4783 34 32 the the DET ajst-4783 34 33 need need NOUN ajst-4783 34 34 for for ADP ajst-4783 34 35 a a DET ajst-4783 34 36 large large ADJ ajst-4783 34 37 number number NOUN ajst-4783 34 38 of of ADP ajst-4783 34 39 users user NOUN ajst-4783 34 40 of of ADP ajst-4783 34 41 big big ADJ ajst-4783 34 42 data datum NOUN ajst-4783 34 43 as as ADP ajst-4783 34 44 the the DET ajst-4783 34 45 algorithm algorithm NOUN ajst-4783 34 46 of of ADP ajst-4783 34 47 support support NOUN ajst-4783 34 48 for for ADP ajst-4783 34 49 algorithms algorithm NOUN ajst-4783 34 50 . . PUNCT ajst-4783 35 1 however however ADV ajst-4783 35 2 , , PUNCT ajst-4783 35 3 if if SCONJ ajst-4783 35 4 a a DET ajst-4783 35 5 large large ADJ ajst-4783 35 6 amount amount NOUN ajst-4783 35 7 of of ADP ajst-4783 35 8 data datum NOUN ajst-4783 35 9 is be AUX ajst-4783 35 10 obtained obtain VERB ajst-4783 35 11 without without ADP ajst-4783 35 12 encryption encryption NOUN ajst-4783 35 13 algorithm algorithm NOUN ajst-4783 35 14 , , PUNCT ajst-4783 35 15 it it PRON ajst-4783 35 16 may may AUX ajst-4783 35 17 lead lead VERB ajst-4783 35 18 to to ADP ajst-4783 35 19 the the DET ajst-4783 35 20 risk risk NOUN ajst-4783 35 21 of of ADP ajst-4783 35 22 user user NOUN ajst-4783 35 23 privacy privacy NOUN ajst-4783 35 24 leakage leakage NOUN ajst-4783 35 25 . . PUNCT ajst-4783 36 1 the the DET ajst-4783 36 2 research research NOUN ajst-4783 36 3 involves involve VERB ajst-4783 36 4 personalized personalized ADJ ajst-4783 36 5 recommendation recommendation NOUN ajst-4783 36 6 , , PUNCT ajst-4783 36 7 tourism tourism NOUN ajst-4783 36 8 management management NOUN ajst-4783 36 9 , , PUNCT ajst-4783 36 10 privacy privacy NOUN ajst-4783 36 11 information information NOUN ajst-4783 36 12 protection protection NOUN ajst-4783 36 13 and and CCONJ ajst-4783 36 14 other other ADJ ajst-4783 36 15 fields field NOUN ajst-4783 36 16 , , PUNCT ajst-4783 36 17 and and CCONJ ajst-4783 36 18 is be AUX ajst-4783 36 19 a a DET ajst-4783 36 20 cross cross ADJ ajst-4783 36 21 - - ADJ ajst-4783 36 22 disciplinary disciplinary ADJ ajst-4783 36 23 research research NOUN ajst-4783 36 24 combining combine VERB ajst-4783 36 25 tourism tourism NOUN ajst-4783 36 26 science science NOUN ajst-4783 36 27 and and CCONJ ajst-4783 36 28 information information NOUN ajst-4783 36 29 security security NOUN ajst-4783 36 30 technology technology NOUN ajst-4783 36 31 . . PUNCT ajst-4783 37 1 the the DET ajst-4783 37 2 research research NOUN ajst-4783 37 3 starts start VERB ajst-4783 37 4 from from ADP ajst-4783 37 5 the the DET ajst-4783 37 6 perspective perspective NOUN ajst-4783 37 7 of of ADP ajst-4783 37 8 " " PUNCT ajst-4783 37 9 data datum NOUN ajst-4783 37 10 " " PUNCT ajst-4783 37 11 and and CCONJ ajst-4783 37 12 " " PUNCT ajst-4783 37 13 user user NOUN ajst-4783 37 14 " " PUNCT ajst-4783 37 15 , , PUNCT ajst-4783 37 16 and and CCONJ ajst-4783 37 17 constructs construct VERB ajst-4783 37 18 a a DET ajst-4783 37 19 personalized personalized ADJ ajst-4783 37 20 privacy privacy NOUN ajst-4783 37 21 protection protection NOUN ajst-4783 37 22 requirement requirement NOUN ajst-4783 37 23 model model NOUN ajst-4783 37 24 based base VERB ajst-4783 37 25 on on ADP ajst-4783 37 26 two two NUM ajst-4783 37 27 aspects aspect NOUN ajst-4783 37 28 : : PUNCT ajst-4783 37 29 data datum NOUN ajst-4783 37 30 value value NOUN ajst-4783 37 31 and and CCONJ ajst-4783 37 32 user user NOUN ajst-4783 37 33 personalization personalization NOUN ajst-4783 37 34 . . PUNCT ajst-4783 38 1 secondly secondly ADV ajst-4783 38 2 , , PUNCT ajst-4783 38 3 based base VERB ajst-4783 38 4 on on ADP ajst-4783 38 5 the the DET ajst-4783 38 6 premise premise NOUN ajst-4783 38 7 of of ADP ajst-4783 38 8 two two NUM ajst-4783 38 9 algorithms algorithm NOUN ajst-4783 38 10 , , PUNCT ajst-4783 38 11 another another DET ajst-4783 38 12 personalized personalized ADJ ajst-4783 38 13 recommendation recommendation NOUN ajst-4783 38 14 model model NOUN ajst-4783 38 15 is be AUX ajst-4783 38 16 constructed construct VERB ajst-4783 38 17 considering consider VERB ajst-4783 38 18 the the DET ajst-4783 38 19 privacy privacy NOUN ajst-4783 38 20 protection protection NOUN ajst-4783 38 21 of of ADP ajst-4783 38 22 users user NOUN ajst-4783 38 23 . . PUNCT ajst-4783 39 1 finally finally ADV ajst-4783 39 2 , , PUNCT ajst-4783 39 3 game game NOUN ajst-4783 39 4 theory theory NOUN ajst-4783 39 5 is be AUX ajst-4783 39 6 used use VERB ajst-4783 39 7 to to PART ajst-4783 39 8 reconcile reconcile VERB ajst-4783 39 9 the the DET ajst-4783 39 10 contradictory contradictory ADJ ajst-4783 39 11 relationship relationship NOUN ajst-4783 39 12 between between ADP ajst-4783 39 13 personalized personalized ADJ ajst-4783 39 14 recommendation recommendation NOUN ajst-4783 39 15 quality quality NOUN ajst-4783 39 16 and and CCONJ ajst-4783 39 17 privacy privacy NOUN ajst-4783 39 18 protection protection NOUN ajst-4783 39 19 . . PUNCT ajst-4783 40 1 this this DET ajst-4783 40 2 project project NOUN ajst-4783 40 3 extends extend VERB ajst-4783 40 4 the the DET ajst-4783 40 5 connotation connotation NOUN ajst-4783 40 6 of of ADP ajst-4783 40 7 personalized personalized ADJ ajst-4783 40 8 recommendation recommendation NOUN ajst-4783 40 9 service service NOUN ajst-4783 40 10 and and CCONJ ajst-4783 40 11 promotes promote VERB ajst-4783 40 12 the the DET ajst-4783 40 13 theoretical theoretical ADJ ajst-4783 40 14 analysis analysis NOUN ajst-4783 40 15 of of ADP ajst-4783 40 16 the the DET ajst-4783 40 17 interaction interaction NOUN ajst-4783 40 18 between between ADP ajst-4783 40 19 " " PUNCT ajst-4783 40 20 data datum NOUN ajst-4783 40 21 value value NOUN ajst-4783 40 22 discovery discovery NOUN ajst-4783 40 23 personalized personalize VERB ajst-4783 40 24 recommendation recommendation NOUN ajst-4783 40 25 service service NOUN ajst-4783 40 26 privacy privacy NOUN ajst-4783 40 27 protection protection NOUN ajst-4783 40 28 tourism tourism NOUN ajst-4783 40 29 " " PUNCT ajst-4783 40 30 , , PUNCT ajst-4783 40 31 and and CCONJ ajst-4783 40 32 enriches enrich VERB ajst-4783 40 33 and and CCONJ ajst-4783 40 34 improves improve VERB ajst-4783 40 35 the the DET ajst-4783 40 36 theories theory NOUN ajst-4783 40 37 and and CCONJ ajst-4783 40 38 methods method NOUN ajst-4783 40 39 related relate VERB ajst-4783 40 40 to to ADP ajst-4783 40 41 data datum NOUN ajst-4783 40 42 analysis analysis NOUN ajst-4783 40 43 and and CCONJ ajst-4783 40 44 decision decision NOUN ajst-4783 40 45 making making NOUN ajst-4783 40 46 in in ADP ajst-4783 40 47 the the DET ajst-4783 40 48 tourism tourism NOUN ajst-4783 40 49 industry industry NOUN ajst-4783 40 50 . . PUNCT ajst-4783 41 1 the the DET ajst-4783 41 2 theoretical theoretical ADJ ajst-4783 41 3 research research NOUN ajst-4783 41 4 results result NOUN ajst-4783 41 5 are be AUX ajst-4783 41 6 applied apply VERB ajst-4783 41 7 to to ADP ajst-4783 41 8 the the DET ajst-4783 41 9 tourism tourism NOUN ajst-4783 41 10 fields field NOUN ajst-4783 41 11 that that PRON ajst-4783 41 12 need need VERB ajst-4783 41 13 development development NOUN ajst-4783 41 14 such such ADJ ajst-4783 41 15 as as ADP ajst-4783 41 16 data data NOUN ajst-4783 41 17 protection protection NOUN ajst-4783 41 18 , , PUNCT ajst-4783 41 19 route route NOUN ajst-4783 41 20 recommendation recommendation NOUN ajst-4783 41 21 , , PUNCT ajst-4783 41 22 personalized personalized ADJ ajst-4783 41 23 recommendation recommendation NOUN ajst-4783 41 24 , , PUNCT ajst-4783 41 25 information information NOUN ajst-4783 41 26 prediction prediction NOUN ajst-4783 41 27 and and CCONJ ajst-4783 41 28 decision decision NOUN ajst-4783 41 29 making making NOUN ajst-4783 41 30 in in ADP ajst-4783 41 31 big big ADJ ajst-4783 41 32 tourism tourism NOUN ajst-4783 41 33 . . PUNCT ajst-4783 42 1 the the DET ajst-4783 42 2 application application NOUN ajst-4783 42 3 results result NOUN ajst-4783 42 4 can can AUX ajst-4783 42 5 not not PART ajst-4783 42 6 only only ADV ajst-4783 42 7 provide provide VERB ajst-4783 42 8 users user NOUN ajst-4783 42 9 with with ADP ajst-4783 42 10 personalized personalized ADJ ajst-4783 42 11 recommendations recommendation NOUN ajst-4783 42 12 for for ADP ajst-4783 42 13 tourism tourism NOUN ajst-4783 42 14 services service NOUN ajst-4783 42 15 , , PUNCT ajst-4783 42 16 nonheritage nonheritage NOUN ajst-4783 42 17 cultural cultural ADJ ajst-4783 42 18 experience experience NOUN ajst-4783 42 19 services service NOUN ajst-4783 42 20 , , PUNCT ajst-4783 42 21 agricultural agricultural ADJ ajst-4783 42 22 products product NOUN ajst-4783 42 23 purchase purchase NOUN ajst-4783 42 24 services service NOUN ajst-4783 42 25 and and CCONJ ajst-4783 42 26 decision decision NOUN ajst-4783 42 27 support support NOUN ajst-4783 42 28 , , PUNCT ajst-4783 42 29 and and CCONJ ajst-4783 42 30 help help VERB ajst-4783 42 31 agricultural agricultural ADJ ajst-4783 42 32 merchants merchant NOUN ajst-4783 42 33 understand understand VERB ajst-4783 42 34 users user NOUN ajst-4783 42 35 ' ' PART ajst-4783 42 36 travel travel NOUN ajst-4783 42 37 preferences preference NOUN ajst-4783 42 38 and and CCONJ ajst-4783 42 39 shopping shopping NOUN ajst-4783 42 40 needs need NOUN ajst-4783 42 41 . . PUNCT ajst-4783 43 1 moreover moreover ADV ajst-4783 43 2 , , PUNCT ajst-4783 43 3 it it PRON ajst-4783 43 4 can can AUX ajst-4783 43 5 technically technically ADV ajst-4783 43 6 prevent prevent VERB ajst-4783 43 7 the the DET ajst-4783 43 8 leakage leakage NOUN ajst-4783 43 9 and and CCONJ ajst-4783 43 10 abuse abuse NOUN ajst-4783 43 11 of of ADP ajst-4783 43 12 private private ADJ ajst-4783 43 13 sensitive sensitive ADJ ajst-4783 43 14 information information NOUN ajst-4783 43 15 in in ADP ajst-4783 43 16 the the DET ajst-4783 43 17 data data NOUN ajst-4783 43 18 application application NOUN ajst-4783 43 19 , , PUNCT ajst-4783 43 20 so so SCONJ ajst-4783 43 21 as as SCONJ ajst-4783 43 22 to to PART ajst-4783 43 23 effectively effectively ADV ajst-4783 43 24 play play VERB ajst-4783 43 25 the the DET ajst-4783 43 26 value value NOUN ajst-4783 43 27 of of ADP ajst-4783 43 28 data datum NOUN ajst-4783 43 29 within within ADP ajst-4783 43 30 a a DET ajst-4783 43 31 reasonable reasonable ADJ ajst-4783 43 32 and and CCONJ ajst-4783 43 33 legitimate legitimate ADJ ajst-4783 43 34 scope scope NOUN ajst-4783 43 35 , , PUNCT ajst-4783 43 36 enhance enhance VERB ajst-4783 43 37 the the DET ajst-4783 43 38 satisfaction satisfaction NOUN ajst-4783 43 39 of of ADP ajst-4783 43 40 tourists tourist NOUN ajst-4783 43 41 , , PUNCT ajst-4783 43 42 and and CCONJ ajst-4783 43 43 create create VERB ajst-4783 43 44 a a DET ajst-4783 43 45 satisfactory satisfactory ADJ ajst-4783 43 46 and and CCONJ ajst-4783 43 47 safe safe ADJ ajst-4783 43 48 " " PUNCT ajst-4783 43 49 guizhou guizhou NOUN ajst-4783 43 50 tour tour NOUN ajst-4783 43 51 " " PUNCT ajst-4783 43 52 . . PUNCT ajst-4783 44 1 3 3 X ajst-4783 44 2 . . X ajst-4783 44 3 research research NOUN ajst-4783 44 4 results result NOUN ajst-4783 44 5 and and CCONJ ajst-4783 44 6 analysis analysis NOUN ajst-4783 44 7 an an DET ajst-4783 44 8 active active ADJ ajst-4783 44 9 recommendation recommendation NOUN ajst-4783 44 10 system system NOUN ajst-4783 44 11 based base VERB ajst-4783 44 12 on on ADP ajst-4783 44 13 a a DET ajst-4783 44 14 situational situational ADJ ajst-4783 44 15 awareness awareness NOUN ajst-4783 44 16 model model NOUN ajst-4783 44 17 , , PUNCT ajst-4783 44 18 which which PRON ajst-4783 44 19 focuses focus VERB ajst-4783 44 20 on on ADP ajst-4783 44 21 different different ADJ ajst-4783 44 22 environmental environmental ADJ ajst-4783 44 23 elements element NOUN ajst-4783 44 24 and and CCONJ ajst-4783 44 25 the the DET ajst-4783 44 26 interests[12 interests[12 NOUN ajst-4783 44 27 ] ] PUNCT ajst-4783 44 28 of of ADP ajst-4783 44 29 the the DET ajst-4783 44 30 user user NOUN ajst-4783 44 31 . . PUNCT ajst-4783 45 1 for for ADP ajst-4783 45 2 the the DET ajst-4783 45 3 recommendation recommendation NOUN ajst-4783 45 4 of of ADP ajst-4783 45 5 travel travel NOUN ajst-4783 45 6 itineraries itinerary NOUN ajst-4783 45 7 , , PUNCT ajst-4783 45 8 travel travel VERB ajst-4783 45 9 photos[12]of photos[12]of VERB ajst-4783 45 10 users user NOUN ajst-4783 45 11 on on ADP ajst-4783 45 12 social social ADJ ajst-4783 45 13 networking networking NOUN ajst-4783 45 14 sites site NOUN ajst-4783 45 15 can can AUX ajst-4783 45 16 be be AUX ajst-4783 45 17 analyzed analyze VERB ajst-4783 45 18 . . PUNCT ajst-4783 46 1 the the DET ajst-4783 46 2 system system NOUN ajst-4783 46 3 is be AUX ajst-4783 46 4 based base VERB ajst-4783 46 5 on on ADP ajst-4783 46 6 a a DET ajst-4783 46 7 bayesian bayesian NOUN ajst-4783 46 8 learning learn VERB ajst-4783 46 9 model[14 model[14 X ajst-4783 46 10 ] ] X ajst-4783 46 11 and and CCONJ ajst-4783 46 12 user user NOUN ajst-4783 46 13 interest interest NOUN ajst-4783 46 14 models model NOUN ajst-4783 46 15 etc[13 etc[13 PROPN ajst-4783 46 16 ] ] PUNCT ajst-4783 46 17 . . PUNCT ajst-4783 47 1 for for ADP ajst-4783 47 2 travel travel NOUN ajst-4783 47 3 recommendation recommendation NOUN ajst-4783 47 4 , , PUNCT ajst-4783 47 5 from from ADP ajst-4783 47 6 the the DET ajst-4783 47 7 current current ADJ ajst-4783 47 8 research research NOUN ajst-4783 47 9 , , PUNCT ajst-4783 47 10 as as SCONJ ajst-4783 47 11 most most ADJ ajst-4783 47 12 of of ADP ajst-4783 47 13 the the DET ajst-4783 47 14 recommendation recommendation NOUN ajst-4783 47 15 systems system NOUN ajst-4783 47 16 rely rely VERB ajst-4783 47 17 on on ADP ajst-4783 47 18 user user NOUN ajst-4783 47 19 's 's PART ajst-4783 47 20 information information NOUN ajst-4783 47 21 , , PUNCT ajst-4783 47 22 the the DET ajst-4783 47 23 identification identification NOUN ajst-4783 47 24 of of ADP ajst-4783 47 25 user user NOUN ajst-4783 47 26 's 's PART ajst-4783 47 27 location location NOUN ajst-4783 47 28 and and CCONJ ajst-4783 47 29 the the DET ajst-4783 47 30 exposure exposure NOUN ajst-4783 47 31 of of ADP ajst-4783 47 32 sensitive sensitive ADJ ajst-4783 47 33 information information NOUN ajst-4783 47 34 have have AUX ajst-4783 47 35 become become VERB ajst-4783 47 36 the the DET ajst-4783 47 37 biggest big ADJ ajst-4783 47 38 obstacles obstacle NOUN ajst-4783 47 39 for for ADP ajst-4783 47 40 the the DET ajst-4783 47 41 current current ADJ ajst-4783 47 42 project project NOUN ajst-4783 47 43 . . PUNCT ajst-4783 48 1 to to PART ajst-4783 48 2 address address VERB ajst-4783 48 3 this this DET ajst-4783 48 4 problem problem NOUN ajst-4783 48 5 , , PUNCT ajst-4783 48 6 the the DET ajst-4783 48 7 two two NUM ajst-4783 48 8 algorithms algorithm NOUN ajst-4783 48 9 based base VERB ajst-4783 48 10 on on ADP ajst-4783 48 11 the the DET ajst-4783 48 12 ability ability NOUN ajst-4783 48 13 to to PART ajst-4783 48 14 achieve achieve VERB ajst-4783 48 15 privacy privacy NOUN ajst-4783 48 16 protection protection NOUN ajst-4783 48 17 of of ADP ajst-4783 48 18 similarity similarity NOUN ajst-4783 48 19 calculation calculation NOUN ajst-4783 48 20 , , PUNCT ajst-4783 48 21 the the DET ajst-4783 48 22 accuracy accuracy NOUN ajst-4783 48 23 of of ADP ajst-4783 48 24 recommendations recommendation NOUN ajst-4783 48 25 and and CCONJ ajst-4783 48 26 data datum NOUN ajst-4783 48 27 security security NOUN ajst-4783 48 28 . . PUNCT ajst-4783 49 1 6 6 NUM ajst-4783 49 2 18 18 NUM ajst-4783 49 3 20 20 NUM ajst-4783 49 4 12 12 NUM ajst-4783 49 5 16 16 NUM ajst-4783 49 6 19 19 NUM ajst-4783 49 7 10 10 NUM ajst-4783 49 8 20 20 NUM ajst-4783 49 9 3 3 NUM ajst-4783 49 10 49 49 NUM ajst-4783 49 11 182 182 NUM ajst-4783 49 12 147 147 NUM ajst-4783 49 13 104 104 NUM ajst-4783 49 14 213 213 NUM ajst-4783 49 15 254 254 NUM ajst-4783 49 16 113 113 NUM ajst-4783 49 17 203 203 NUM ajst-4783 49 18 286 286 NUM ajst-4783 49 19 0 0 NUM ajst-4783 49 20 50 50 NUM ajst-4783 49 21 100 100 NUM ajst-4783 49 22 150 150 NUM ajst-4783 49 23 200 200 NUM ajst-4783 49 24 250 250 NUM ajst-4783 49 25 300 300 NUM ajst-4783 49 26 350 350 NUM ajst-4783 49 27 statistics statistic NOUN ajst-4783 49 28 of of ADP ajst-4783 49 29 tourist tourist NOUN ajst-4783 49 30 attractions attraction NOUN ajst-4783 49 31 by by ADP ajst-4783 49 32 city city NOUN ajst-4783 49 33 in in ADP ajst-4783 49 34 guizhou guizhou PROPN ajst-4783 49 35 province province PROPN ajst-4783 49 36 famous famous ADJ ajst-4783 49 37 attractions attraction NOUN ajst-4783 49 38 non non ADJ ajst-4783 49 39 - - ADJ ajst-4783 49 40 famous famous ADJ ajst-4783 49 41 attractions attraction NOUN ajst-4783 49 42 44 44 NUM ajst-4783 49 43 3.1 3.1 NUM ajst-4783 49 44 . . PUNCT ajst-4783 50 1 a a DET ajst-4783 50 2 study study NOUN ajst-4783 50 3 of of ADP ajst-4783 50 4 content content NOUN ajst-4783 50 5 - - PUNCT ajst-4783 50 6 based base VERB ajst-4783 50 7 information information NOUN ajst-4783 50 8 retrieval retrieval NOUN ajst-4783 50 9 and and CCONJ ajst-4783 50 10 information information NOUN ajst-4783 50 11 filtering filter VERB ajst-4783 50 12 content content NOUN ajst-4783 50 13 - - PUNCT ajst-4783 50 14 based base VERB ajst-4783 50 15 recommendation recommendation NOUN ajst-4783 50 16 is be AUX ajst-4783 50 17 a a DET ajst-4783 50 18 technology technology NOUN ajst-4783 50 19 based base VERB ajst-4783 50 20 on on ADP ajst-4783 50 21 information information NOUN ajst-4783 50 22 retrieval retrieval NOUN ajst-4783 50 23 and and CCONJ ajst-4783 50 24 information information NOUN ajst-4783 50 25 filtering filtering NOUN ajst-4783 50 26 , , PUNCT ajst-4783 50 27 and and CCONJ ajst-4783 50 28 it it PRON ajst-4783 50 29 has have AUX ajst-4783 50 30 become become VERB ajst-4783 50 31 a a DET ajst-4783 50 32 mainstream mainstream NOUN ajst-4783 50 33 personalized personalize VERB ajst-4783 50 34 recommendation recommendation NOUN ajst-4783 50 35 method method NOUN ajst-4783 50 36 . . PUNCT ajst-4783 51 1 the the DET ajst-4783 51 2 content content NOUN ajst-4783 51 3 - - PUNCT ajst-4783 51 4 based base VERB ajst-4783 51 5 recommendation recommendation NOUN ajst-4783 51 6 system system NOUN ajst-4783 51 7 is be AUX ajst-4783 51 8 based base VERB ajst-4783 51 9 on on ADP ajst-4783 51 10 the the DET ajst-4783 51 11 content content NOUN ajst-4783 51 12 of of ADP ajst-4783 51 13 text text NOUN ajst-4783 51 14 , , PUNCT ajst-4783 51 15 and and CCONJ ajst-4783 51 16 provides provide VERB ajst-4783 51 17 similar similar ADJ ajst-4783 51 18 information information NOUN ajst-4783 51 19 to to ADP ajst-4783 51 20 users user NOUN ajst-4783 51 21 by by ADP ajst-4783 51 22 comparing compare VERB ajst-4783 51 23 the the DET ajst-4783 51 24 similarity similarity NOUN ajst-4783 51 25 of of ADP ajst-4783 51 26 resources resource NOUN ajst-4783 51 27 and and CCONJ ajst-4783 51 28 resources resource NOUN ajst-4783 51 29 , , PUNCT ajst-4783 51 30 resources resource NOUN ajst-4783 51 31 and and CCONJ ajst-4783 51 32 users user NOUN ajst-4783 51 33 ' ' PART ajst-4783 51 34 interests interest NOUN ajst-4783 51 35 for for ADP ajst-4783 51 36 comparison comparison NOUN ajst-4783 51 37 . . PUNCT ajst-4783 52 1 3.2 3.2 NUM ajst-4783 52 2 . . PUNCT ajst-4783 52 3 research research NOUN ajst-4783 52 4 on on ADP ajst-4783 52 5 collaborative collaborative ADJ ajst-4783 52 6 content content NOUN ajst-4783 52 7 - - PUNCT ajst-4783 52 8 based base VERB ajst-4783 52 9 recommendation recommendation NOUN ajst-4783 52 10 by by ADP ajst-4783 52 11 filtering filter VERB ajst-4783 52 12 out out ADP ajst-4783 52 13 information information NOUN ajst-4783 52 14 using use VERB ajst-4783 52 15 similarity similarity NOUN ajst-4783 52 16 and and CCONJ ajst-4783 52 17 then then ADV ajst-4783 52 18 recommending recommend VERB ajst-4783 52 19 users user NOUN ajst-4783 52 20 to to ADP ajst-4783 52 21 those those PRON ajst-4783 52 22 with with ADP ajst-4783 52 23 the the DET ajst-4783 52 24 same same ADJ ajst-4783 52 25 preferences preference NOUN ajst-4783 52 26 and and CCONJ ajst-4783 52 27 parameter parameter NOUN ajst-4783 52 28 settings setting NOUN ajst-4783 52 29 , , PUNCT ajst-4783 52 30 it it PRON ajst-4783 52 31 can can AUX ajst-4783 52 32 also also ADV ajst-4783 52 33 help help VERB ajst-4783 52 34 users user NOUN ajst-4783 52 35 discover discover VERB ajst-4783 52 36 hidden hidden ADJ ajst-4783 52 37 and and CCONJ ajst-4783 52 38 undiscovered undiscovered ADJ ajst-4783 52 39 interests interest NOUN ajst-4783 52 40 by by ADP ajst-4783 52 41 guessing guess VERB ajst-4783 52 42 what what PRON ajst-4783 52 43 information information NOUN ajst-4783 52 44 they they PRON ajst-4783 52 45 like like VERB ajst-4783 52 46 . . PUNCT ajst-4783 53 1 4 4 X ajst-4783 53 2 . . NOUN ajst-4783 53 3 differential differential PROPN ajst-4783 53 4 privacy privacy NOUN ajst-4783 53 5 algorithm algorithm NOUN ajst-4783 53 6 based base VERB ajst-4783 53 7 on on ADP ajst-4783 53 8 the the DET ajst-4783 53 9 basic basic ADJ ajst-4783 53 10 principle principle NOUN ajst-4783 53 11 of of ADP ajst-4783 53 12 differential differential ADJ ajst-4783 53 13 privacy privacy NOUN ajst-4783 53 14 on on ADP ajst-4783 53 15 the the DET ajst-4783 53 16 genetic genetic ADJ ajst-4783 53 17 matrix matrix NOUN ajst-4783 53 18 decomposition decomposition NOUN ajst-4783 53 19 recommendation recommendation NOUN ajst-4783 53 20 algorithm algorithm NOUN ajst-4783 53 21 for for ADP ajst-4783 53 22 differential differential NOUN ajst-4783 53 23 privacy privacy NOUN ajst-4783 53 24 and and CCONJ ajst-4783 53 25 the the DET ajst-4783 53 26 differential differential PROPN ajst-4783 53 27 privacy privacy NOUN ajst-4783 53 28 non non ADJ ajst-4783 53 29 - - ADJ ajst-4783 53 30 negative negative ADJ ajst-4783 53 31 matrix matrix NOUN ajst-4783 53 32 decomposition decomposition NOUN ajst-4783 53 33 recommendation recommendation NOUN ajst-4783 53 34 algorithm algorithm NOUN ajst-4783 53 35 for for ADP ajst-4783 53 36 sparse sparse ADJ ajst-4783 53 37 data datum NOUN ajst-4783 53 38 are be AUX ajst-4783 53 39 given give VERB ajst-4783 53 40 to to PART ajst-4783 53 41 encrypt encrypt VERB ajst-4783 53 42 sensitive sensitive ADJ ajst-4783 53 43 information information NOUN ajst-4783 53 44 and and CCONJ ajst-4783 53 45 personalize personalize VERB ajst-4783 53 46 the the DET ajst-4783 53 47 recommendation recommendation NOUN ajst-4783 53 48 . . PUNCT ajst-4783 54 1 a a DET ajst-4783 54 2 key key ADJ ajst-4783 54 3 part part NOUN ajst-4783 54 4 of of ADP ajst-4783 54 5 the the DET ajst-4783 54 6 differential differential ADJ ajst-4783 54 7 privacy privacy NOUN ajst-4783 54 8 algorithm[11 algorithm[11 X ajst-4783 54 9 ] ] X ajst-4783 54 10 is be AUX ajst-4783 54 11 to to PART ajst-4783 54 12 decompose decompose VERB ajst-4783 54 13 the the DET ajst-4783 54 14 matrices matrix NOUN ajst-4783 54 15 of of ADP ajst-4783 54 16 differential differential ADJ ajst-4783 54 17 privacy privacy NOUN ajst-4783 54 18 . . PUNCT ajst-4783 55 1 the the DET ajst-4783 55 2 main main ADJ ajst-4783 55 3 contributions contribution NOUN ajst-4783 55 4 of of ADP ajst-4783 55 5 this this DET ajst-4783 55 6 paper paper NOUN ajst-4783 55 7 are be AUX ajst-4783 55 8 as as SCONJ ajst-4783 55 9 follows follow VERB ajst-4783 55 10 : : PUNCT ajst-4783 55 11 ( ( PUNCT ajst-4783 55 12 1 1 X ajst-4783 55 13 ) ) PUNCT ajst-4783 55 14 the the DET ajst-4783 55 15 matrix matrix NOUN ajst-4783 55 16 decomposition decomposition NOUN ajst-4783 55 17 is be AUX ajst-4783 55 18 transformed transform VERB ajst-4783 55 19 into into ADP ajst-4783 55 20 two two NUM ajst-4783 55 21 alternating alternate VERB ajst-4783 55 22 user user NOUN ajst-4783 55 23 hidden hide VERB ajst-4783 55 24 factor factor NOUN ajst-4783 55 25 and and CCONJ ajst-4783 55 26 item item NOUN ajst-4783 55 27 hidden hide VERB ajst-4783 55 28 factor factor NOUN ajst-4783 55 29 optimization optimization NOUN ajst-4783 55 30 problems problem NOUN ajst-4783 55 31 , , PUNCT ajst-4783 55 32 which which PRON ajst-4783 55 33 solve solve VERB ajst-4783 55 34 the the DET ajst-4783 55 35 problems problem NOUN ajst-4783 55 36 of of ADP ajst-4783 55 37 high high ADJ ajst-4783 55 38 dimensionality dimensionality NOUN ajst-4783 55 39 of of ADP ajst-4783 55 40 the the DET ajst-4783 55 41 solution solution NOUN ajst-4783 55 42 space space NOUN ajst-4783 55 43 and and CCONJ ajst-4783 55 44 nonconvexity nonconvexity NOUN ajst-4783 55 45 in in ADP ajst-4783 55 46 the the DET ajst-4783 55 47 optimization optimization NOUN ajst-4783 55 48 in in ADP ajst-4783 55 49 the the DET ajst-4783 55 50 solution solution NOUN ajst-4783 55 51 process process NOUN ajst-4783 55 52 . . PUNCT ajst-4783 56 1 ( ( PUNCT ajst-4783 56 2 2 2 X ajst-4783 56 3 ) ) PUNCT ajst-4783 56 4 the the DET ajst-4783 56 5 genetic genetic ADJ ajst-4783 56 6 algorithm algorithm NOUN ajst-4783 56 7 variation variation NOUN ajst-4783 56 8 process process NOUN ajst-4783 56 9 is be AUX ajst-4783 56 10 redesigned redesign VERB ajst-4783 56 11 to to PART ajst-4783 56 12 improve improve VERB ajst-4783 56 13 the the DET ajst-4783 56 14 solution solution NOUN ajst-4783 56 15 efficiency efficiency NOUN ajst-4783 56 16 by by ADP ajst-4783 56 17 considering consider VERB ajst-4783 56 18 the the DET ajst-4783 56 19 different different ADJ ajst-4783 56 20 degrees degree NOUN ajst-4783 56 21 of of ADP ajst-4783 56 22 user user NOUN ajst-4783 56 23 or or CCONJ ajst-4783 56 24 project project NOUN ajst-4783 56 25 bias bias NOUN ajst-4783 56 26 on on ADP ajst-4783 56 27 the the DET ajst-4783 56 28 hidden hide VERB ajst-4783 56 29 factor factor NOUN ajst-4783 56 30 ; ; PUNCT ajst-4783 56 31 on on ADP ajst-4783 56 32 this this DET ajst-4783 56 33 basis basis NOUN ajst-4783 56 34 , , PUNCT ajst-4783 56 35 an an DET ajst-4783 56 36 improved improve VERB ajst-4783 56 37 exponential exponential ADJ ajst-4783 56 38 enhancement enhancement NOUN ajst-4783 56 39 mechanism mechanism NOUN ajst-4783 56 40 is be AUX ajst-4783 56 41 proposed propose VERB ajst-4783 56 42 , , PUNCT ajst-4783 56 43 which which PRON ajst-4783 56 44 reduces reduce VERB ajst-4783 56 45 the the DET ajst-4783 56 46 influence influence NOUN ajst-4783 56 47 of of ADP ajst-4783 56 48 interference interference NOUN ajst-4783 56 49 on on ADP ajst-4783 56 50 the the DET ajst-4783 56 51 algorithm algorithm NOUN ajst-4783 56 52 by by ADP ajst-4783 56 53 using use VERB ajst-4783 56 54 the the DET ajst-4783 56 55 enhanced enhanced ADJ ajst-4783 56 56 exponential exponential ADJ ajst-4783 56 57 mechanism mechanism NOUN ajst-4783 56 58 , , PUNCT ajst-4783 56 59 and and CCONJ ajst-4783 56 60 also also ADV ajst-4783 56 61 can can AUX ajst-4783 56 62 well well ADV ajst-4783 56 63 balance balance VERB ajst-4783 56 64 the the DET ajst-4783 56 65 privacy privacy NOUN ajst-4783 56 66 protection protection NOUN ajst-4783 56 67 and and CCONJ ajst-4783 56 68 algorithm algorithm NOUN ajst-4783 56 69 efficiency efficiency NOUN ajst-4783 56 70 . . PUNCT ajst-4783 57 1 definition definition NOUN ajst-4783 57 2 1 1 NUM ajst-4783 57 3 : : PUNCT ajst-4783 57 4 set set VERB ajst-4783 57 5 up up ADP ajst-4783 57 6 two two NUM ajst-4783 57 7 data datum NOUN ajst-4783 57 8 sets set NOUN ajst-4783 57 9 d d NOUN ajst-4783 57 10 and and CCONJ ajst-4783 57 11 d d NOUN ajst-4783 57 12 ' ' X ajst-4783 57 13 , , PUNCT ajst-4783 57 14 with with ADP ajst-4783 57 15 at at ADP ajst-4783 57 16 most most ADV ajst-4783 57 17 one one NUM ajst-4783 57 18 record record NOUN ajst-4783 57 19 . . PUNCT ajst-4783 58 1 given give VERB ajst-4783 58 2 a a DET ajst-4783 58 3 random random ADJ ajst-4783 58 4 function function NOUN ajst-4783 58 5 k k NOUN ajst-4783 58 6 , , PUNCT ajst-4783 58 7 and and CCONJ ajst-4783 58 8 this this DET ajst-4783 58 9 function function NOUN ajst-4783 58 10 provides provide VERB ajst-4783 58 11 Ξ΅ Ξ΅ NOUN ajst-4783 58 12 - - PUNCT ajst-4783 58 13 differential differential NOUN ajst-4783 58 14 privacy privacy NOUN ajst-4783 58 15 protection protection NOUN ajst-4783 58 16 , , PUNCT ajst-4783 58 17 it it PRON ajst-4783 58 18 holds hold VERB ajst-4783 58 19 for for ADP ajst-4783 58 20 all all DET ajst-4783 58 21 a a PRON ajst-4783 58 22 within within ADP ajst-4783 58 23 the the DET ajst-4783 58 24 range range NOUN ajst-4783 58 25 of of ADP ajst-4783 58 26 values value NOUN ajst-4783 58 27 of of ADP ajst-4783 58 28 the the DET ajst-4783 58 29 function function NOUN ajst-4783 58 30 k k NOUN ajst-4783 58 31 , , PUNCT ajst-4783 58 32 i.e. i.e. X ajst-4783 58 33 , , PUNCT ajst-4783 58 34 a a DET ajst-4783 58 35 range(k range(k NOUN ajst-4783 58 36 ) ) PUNCT ajst-4783 58 37 . . PUNCT ajst-4783 59 1 where where SCONJ ajst-4783 59 2 r r X ajst-4783 59 3 [ [ X ajst-4783 59 4 ] ] X ajst-4783 59 5 is be AUX ajst-4783 59 6 the the DET ajst-4783 59 7 risk risk NOUN ajst-4783 59 8 of of ADP ajst-4783 59 9 disclosure disclosure NOUN ajst-4783 59 10 of of ADP ajst-4783 59 11 the the DET ajst-4783 59 12 event event NOUN ajst-4783 59 13 , , PUNCT ajst-4783 59 14 controlled control VERB ajst-4783 59 15 by by ADP ajst-4783 59 16 the the DET ajst-4783 59 17 value value NOUN ajst-4783 59 18 of of ADP ajst-4783 59 19 the the DET ajst-4783 59 20 random random ADJ ajst-4783 59 21 function function NOUN ajst-4783 59 22 . . PUNCT ajst-4783 60 1 is be AUX ajst-4783 60 2 the the DET ajst-4783 60 3 privacy privacy NOUN ajst-4783 60 4 protection protection NOUN ajst-4783 60 5 budget budget NOUN ajst-4783 60 6 parameter parameter NOUN ajst-4783 60 7 , , PUNCT ajst-4783 60 8 the the DET ajst-4783 60 9 magnitude magnitude NOUN ajst-4783 60 10 of of ADP ajst-4783 60 11 the the DET ajst-4783 60 12 value value NOUN ajst-4783 60 13 of of ADP ajst-4783 60 14 which which PRON ajst-4783 60 15 directly directly ADV ajst-4783 60 16 determines determine VERB ajst-4783 60 17 the the DET ajst-4783 60 18 level level NOUN ajst-4783 60 19 of of ADP ajst-4783 60 20 privacy privacy NOUN ajst-4783 60 21 protection protection NOUN ajst-4783 60 22 π›²π‘Ÿ π›²π‘Ÿ PROPN ajst-4783 60 23 𝛫 𝛫 PROPN ajst-4783 60 24 𝐷 𝐷 NOUN ajst-4783 60 25 ∈ ∈ NOUN ajst-4783 60 26 𝛒 𝛒 PRON ajst-4783 60 27 π›²π‘Ÿ π›²π‘Ÿ PROPN ajst-4783 60 28 𝛫 𝛫 PROPN ajst-4783 60 29 𝐷 𝐷 PROPN ajst-4783 60 30 ∈ ∈ NOUN ajst-4783 60 31 𝛒 𝛒 NOUN ajst-4783 60 32 𝑒 𝑒 PROPN ajst-4783 60 33 π›²π‘Ÿ π›²π‘Ÿ PROPN ajst-4783 60 34 𝛫 𝛫 PROPN ajst-4783 60 35 𝐷 𝐷 PROPN ajst-4783 60 36 ∈ ∈ NOUN ajst-4783 60 37 𝛒 𝛒 NOUN ajst-4783 60 38 ( ( PUNCT ajst-4783 60 39 1 1 NUM ajst-4783 60 40 ) ) PUNCT ajst-4783 60 41 improved improve VERB ajst-4783 60 42 privacy privacy NOUN ajst-4783 60 43 genetic genetic ADJ ajst-4783 60 44 algorithm algorithm NOUN ajst-4783 60 45 ( ( PUNCT ajst-4783 60 46 aprivgene aprivgene NOUN ajst-4783 60 47 ) ) PUNCT ajst-4783 60 48 input input NOUN ajst-4783 60 49 : : PUNCT ajst-4783 60 50 to to PART ajst-4783 60 51 improve improve VERB ajst-4783 60 52 the the DET ajst-4783 60 53 rating rating NOUN ajst-4783 60 54 prediction prediction NOUN ajst-4783 60 55 accuracy accuracy NOUN ajst-4783 60 56 , , PUNCT ajst-4783 60 57 the the DET ajst-4783 60 58 user user NOUN ajst-4783 60 59 rating rating NOUN ajst-4783 60 60 matrix matrix NOUN ajst-4783 60 61 r r NOUN ajst-4783 60 62 is be AUX ajst-4783 60 63 preprocessed preprocesse VERB ajst-4783 60 64 , , PUNCT ajst-4783 60 65 i.e. i.e. X ajst-4783 60 66 , , PUNCT ajst-4783 60 67 the the DET ajst-4783 60 68 boundary boundary ADJ ajst-4783 60 69 parameter parameter NOUN ajst-4783 60 70 is be AUX ajst-4783 60 71 set set VERB ajst-4783 60 72 to to PART ajst-4783 60 73 b. b. VERB ajst-4783 60 74 the the DET ajst-4783 60 75 ratings rating NOUN ajst-4783 60 76 are be AUX ajst-4783 60 77 transformed transform VERB ajst-4783 60 78 to to ADP ajst-4783 60 79 the the DET ajst-4783 60 80 range range NOUN ajst-4783 61 1 [ [ X ajst-4783 61 2 -b -b X ajst-4783 61 3 , , PUNCT ajst-4783 61 4 b b NOUN ajst-4783 61 5 ] ] X ajst-4783 61 6 to to PART ajst-4783 61 7 obtain obtain VERB ajst-4783 61 8 a a DET ajst-4783 61 9 new new ADJ ajst-4783 61 10 user user NOUN ajst-4783 61 11 rating rating NOUN ajst-4783 61 12 matrix matrix NOUN ajst-4783 61 13 r. r. PROPN ajst-4783 61 14 then then ADV ajst-4783 61 15 , , PUNCT ajst-4783 61 16 the the DET ajst-4783 61 17 matrix matrix NOUN ajst-4783 61 18 r r NOUN ajst-4783 61 19 is be AUX ajst-4783 61 20 decomposed decompose VERB ajst-4783 61 21 by by ADP ajst-4783 61 22 a a DET ajst-4783 61 23 hidden hide VERB ajst-4783 61 24 factor factor NOUN ajst-4783 61 25 , , PUNCT ajst-4783 61 26 i.e. i.e. X ajst-4783 61 27 𝑃 𝑃 NOUN ajst-4783 61 28 , , PUNCT ajst-4783 61 29 𝑄 𝑄 NOUN ajst-4783 61 30 π‘Žπ‘Ÿπ‘” π‘Žπ‘Ÿπ‘” NOUN ajst-4783 61 31 , , PUNCT ajst-4783 61 32 π‘šπ‘–π‘› π‘šπ‘–π‘› NOUN ajst-4783 61 33 βˆ‘ βˆ‘ PROPN ajst-4783 61 34 𝑅 𝑅 PROPN ajst-4783 61 35 𝑃 𝑃 NOUN ajst-4783 61 36 𝑄 𝑄 PROPN ajst-4783 61 37 , , PUNCT ajst-4783 61 38 ∈ ∈ PROPN ajst-4783 61 39 ( ( PUNCT ajst-4783 61 40 2 2 NUM ajst-4783 61 41 ) ) PUNCT ajst-4783 61 42 4.1 4.1 NUM ajst-4783 61 43 . . PUNCT ajst-4783 62 1 privacy privacy NOUN ajst-4783 62 2 protection protection NOUN ajst-4783 62 3 budget budget NOUN ajst-4783 62 4 from from ADP ajst-4783 62 5 definition definition NOUN ajst-4783 62 6 1 1 NUM ajst-4783 62 7 , , PUNCT ajst-4783 62 8 it it PRON ajst-4783 62 9 is be AUX ajst-4783 62 10 clear clear ADJ ajst-4783 62 11 that that SCONJ ajst-4783 62 12 the the DET ajst-4783 62 13 privacy privacy NOUN ajst-4783 62 14 - - PUNCT ajst-4783 62 15 preserving preserve VERB ajst-4783 62 16 budget budget NOUN ajst-4783 62 17 is be AUX ajst-4783 62 18 a a DET ajst-4783 62 19 key key ADJ ajst-4783 62 20 element element NOUN ajst-4783 62 21 in in ADP ajst-4783 62 22 order order NOUN ajst-4783 62 23 for for SCONJ ajst-4783 62 24 the the DET ajst-4783 62 25 inequality inequality NOUN ajst-4783 62 26 to to PART ajst-4783 62 27 hold hold VERB ajst-4783 62 28 . . PUNCT ajst-4783 63 1 when when SCONJ ajst-4783 63 2 the the DET ajst-4783 63 3 value value NOUN ajst-4783 63 4 of of ADP ajst-4783 63 5 0 0 NUM ajst-4783 63 6 , , PUNCT ajst-4783 63 7 the the DET ajst-4783 63 8 level level NOUN ajst-4783 63 9 of of ADP ajst-4783 63 10 privacy privacy NOUN ajst-4783 63 11 protection protection NOUN ajst-4783 63 12 is be AUX ajst-4783 63 13 the the DET ajst-4783 63 14 highest high ADJ ajst-4783 63 15 level level NOUN ajst-4783 63 16 at at ADP ajst-4783 63 17 this this DET ajst-4783 63 18 time time NOUN ajst-4783 63 19 , , PUNCT ajst-4783 63 20 and and CCONJ ajst-4783 63 21 when when SCONJ ajst-4783 63 22 the the PRON ajst-4783 63 23 becomes become VERB ajst-4783 63 24 large large ADJ ajst-4783 63 25 , , PUNCT ajst-4783 63 26 the the DET ajst-4783 63 27 exponential exponential ADJ ajst-4783 63 28 function function NOUN ajst-4783 63 29 exp exp NOUN ajst-4783 63 30 ( ( PUNCT ajst-4783 63 31 ) ) PUNCT ajst-4783 63 32 value value NOUN ajst-4783 63 33 monotonically monotonically ADV ajst-4783 63 34 increases increase NOUN ajst-4783 63 35 and and CCONJ ajst-4783 63 36 the the DET ajst-4783 63 37 level level NOUN ajst-4783 63 38 of of ADP ajst-4783 63 39 privacy privacy NOUN ajst-4783 63 40 protection protection NOUN ajst-4783 63 41 gradually gradually ADV ajst-4783 63 42 decreases decrease VERB ajst-4783 63 43 . . PUNCT ajst-4783 64 1 when when SCONJ ajst-4783 64 2 the the DET ajst-4783 64 3 smaller small ADJ ajst-4783 64 4 the the DET ajst-4783 64 5 value value NOUN ajst-4783 64 6 of of ADP ajst-4783 64 7 the the DET ajst-4783 64 8 privacy privacy NOUN ajst-4783 64 9 protection protection NOUN ajst-4783 64 10 level level NOUN ajst-4783 64 11 , , PUNCT ajst-4783 64 12 the the PRON ajst-4783 64 13 lower low ADJ ajst-4783 64 14 the the DET ajst-4783 64 15 availability availability NOUN ajst-4783 64 16 of of ADP ajst-4783 64 17 the the DET ajst-4783 64 18 original original ADJ ajst-4783 64 19 data datum NOUN ajst-4783 64 20 . . PUNCT ajst-4783 65 1 thus thus ADV ajst-4783 65 2 , , PUNCT ajst-4783 65 3 it it PRON ajst-4783 65 4 seems seem VERB ajst-4783 65 5 that that SCONJ ajst-4783 65 6 the the DET ajst-4783 65 7 the the DET ajst-4783 65 8 value value NOUN ajst-4783 65 9 of of ADP ajst-4783 65 10 should should AUX ajst-4783 65 11 be be AUX ajst-4783 65 12 taken take VERB ajst-4783 65 13 in in ADP ajst-4783 65 14 context context NOUN ajst-4783 65 15 , , PUNCT ajst-4783 65 16 only only ADV ajst-4783 65 17 then then ADV ajst-4783 65 18 , , PUNCT ajst-4783 65 19 to to PART ajst-4783 65 20 ensure ensure VERB ajst-4783 65 21 a a DET ajst-4783 65 22 balance balance NOUN ajst-4783 65 23 between between ADP ajst-4783 65 24 privacy privacy NOUN ajst-4783 65 25 and and CCONJ ajst-4783 65 26 ease ease NOUN ajst-4783 65 27 of of ADP ajst-4783 65 28 use use NOUN ajst-4783 65 29 for for ADP ajst-4783 65 30 users user NOUN ajst-4783 65 31 . . PUNCT ajst-4783 66 1 4.2 4.2 NUM ajst-4783 66 2 . . PUNCT ajst-4783 66 3 noise noise NOUN ajst-4783 66 4 mechanism mechanism NOUN ajst-4783 66 5 differential differential NOUN ajst-4783 66 6 privacy privacy NOUN ajst-4783 66 7 protection protection NOUN ajst-4783 66 8 is be AUX ajst-4783 66 9 a a DET ajst-4783 66 10 way way NOUN ajst-4783 66 11 to to PART ajst-4783 66 12 mask mask VERB ajst-4783 66 13 sensitive sensitive ADJ ajst-4783 66 14 information information NOUN ajst-4783 66 15 by by ADP ajst-4783 66 16 adding add VERB ajst-4783 66 17 noise noise NOUN ajst-4783 66 18 to to ADP ajst-4783 66 19 the the DET ajst-4783 66 20 results result NOUN ajst-4783 66 21 of of ADP ajst-4783 66 22 the the DET ajst-4783 66 23 query query NOUN ajst-4783 66 24 output output NOUN ajst-4783 66 25 . . PUNCT ajst-4783 67 1 noise noise NOUN ajst-4783 67 2 mechanism mechanism NOUN ajst-4783 67 3 is be AUX ajst-4783 67 4 a a DET ajst-4783 67 5 method method NOUN ajst-4783 67 6 of of ADP ajst-4783 67 7 adding add VERB ajst-4783 67 8 noise noise NOUN ajst-4783 67 9 to to ADP ajst-4783 67 10 the the DET ajst-4783 67 11 calculation calculation NOUN ajst-4783 67 12 results result VERB ajst-4783 67 13 . . PUNCT ajst-4783 68 1 the the DET ajst-4783 68 2 noise noise NOUN ajst-4783 68 3 mechanism mechanism NOUN ajst-4783 68 4 is be AUX ajst-4783 68 5 the the DET ajst-4783 68 6 addition addition NOUN ajst-4783 68 7 of of ADP ajst-4783 68 8 noise noise NOUN ajst-4783 68 9 to to ADP ajst-4783 68 10 the the DET ajst-4783 68 11 values value NOUN ajst-4783 68 12 . . PUNCT ajst-4783 69 1 the the DET ajst-4783 69 2 amount amount NOUN ajst-4783 69 3 of of ADP ajst-4783 69 4 noise noise NOUN ajst-4783 69 5 can can AUX ajst-4783 69 6 have have VERB ajst-4783 69 7 a a DET ajst-4783 69 8 direct direct ADJ ajst-4783 69 9 impact impact NOUN ajst-4783 69 10 on on ADP ajst-4783 69 11 privacy privacy NOUN ajst-4783 69 12 protection protection NOUN ajst-4783 69 13 , , PUNCT ajst-4783 69 14 so so SCONJ ajst-4783 69 15 we we PRON ajst-4783 69 16 need need VERB ajst-4783 69 17 a a DET ajst-4783 69 18 notion notion NOUN ajst-4783 69 19 of of ADP ajst-4783 69 20 sensitivity sensitivity NOUN ajst-4783 69 21 . . PUNCT ajst-4783 70 1 definition definition NOUN ajst-4783 70 2 2 2 NUM ajst-4783 70 3 : : PUNCT ajst-4783 70 4 sensitivity sensitivity NOUN ajst-4783 70 5 is be AUX ajst-4783 70 6 a a DET ajst-4783 70 7 measure measure NOUN ajst-4783 70 8 of of ADP ajst-4783 70 9 the the DET ajst-4783 70 10 amount amount NOUN ajst-4783 70 11 of of ADP ajst-4783 70 12 noise noise NOUN ajst-4783 70 13 added add VERB ajst-4783 70 14 , , PUNCT ajst-4783 70 15 for for ADP ajst-4783 70 16 an an DET ajst-4783 70 17 arbitrary arbitrary ADJ ajst-4783 70 18 function function NOUN ajst-4783 71 1 f f NOUN ajst-4783 71 2 : : PUNCT ajst-4783 71 3 d d PROPN ajst-4783 71 4 rd rd PROPN ajst-4783 71 5 , , PUNCT ajst-4783 71 6 a a DET ajst-4783 71 7 set set NOUN ajst-4783 71 8 of of ADP ajst-4783 71 9 data datum NOUN ajst-4783 71 10 is be AUX ajst-4783 71 11 input input NOUN ajst-4783 71 12 , , PUNCT ajst-4783 71 13 and and CCONJ ajst-4783 71 14 then then ADV ajst-4783 71 15 a a DET ajst-4783 71 16 d d ADJ ajst-4783 71 17 - - ADJ ajst-4783 71 18 dimensional dimensional ADJ ajst-4783 71 19 vector vector NOUN ajst-4783 71 20 of of ADP ajst-4783 71 21 real real ADJ ajst-4783 71 22 numbers number NOUN ajst-4783 71 23 is be AUX ajst-4783 71 24 output output NOUN ajst-4783 71 25 . . PUNCT ajst-4783 72 1 the the DET ajst-4783 72 2 data datum NOUN ajst-4783 72 3 set set VERB ajst-4783 72 4 d d PROPN ajst-4783 72 5 and and CCONJ ajst-4783 72 6 d d X ajst-4783 72 7 ' ' PUNCT ajst-4783 72 8 differ differ VERB ajst-4783 72 9 by by ADP ajst-4783 72 10 at at ADP ajst-4783 72 11 most most ADV ajst-4783 72 12 1 1 NUM ajst-4783 72 13 record record NOUN ajst-4783 72 14 , , PUNCT ajst-4783 72 15 with with ADP ajst-4783 72 16 βˆ†π‘“ βˆ†π‘“ PROPN ajst-4783 72 17 π‘€π‘Žπ‘₯ π‘€π‘Žπ‘₯ PROPN ajst-4783 72 18 𝐷 𝐷 PROPN ajst-4783 72 19 , , PUNCT ajst-4783 72 20 𝐷′ 𝐷′ PROPN ajst-4783 72 21 ‖𝑓 ‖𝑓 NOUN ajst-4783 72 22 𝐷 𝐷 VERB ajst-4783 73 1 𝑓 𝑓 PRON ajst-4783 73 2 𝐷′ 𝐷′ NOUN ajst-4783 73 3 β€– β€– PROPN ajst-4783 73 4 ( ( PUNCT ajst-4783 73 5 3 3 NUM ajst-4783 73 6 ) ) PUNCT ajst-4783 73 7 βˆ†f βˆ†f NOUN ajst-4783 73 8 is be AUX ajst-4783 73 9 the the DET ajst-4783 73 10 global global ADJ ajst-4783 73 11 sensitivity sensitivity NOUN ajst-4783 73 12 of of ADP ajst-4783 73 13 the the DET ajst-4783 73 14 function function NOUN ajst-4783 73 15 f. f. PROPN ajst-4783 73 16 5 5 NUM ajst-4783 73 17 . . PUNCT ajst-4783 73 18 personalized personalize VERB ajst-4783 73 19 privacy privacy NOUN ajst-4783 73 20 protection protection NOUN ajst-4783 73 21 requirements requirement NOUN ajst-4783 73 22 model model VERB ajst-4783 73 23 we we PRON ajst-4783 73 24 study study VERB ajst-4783 73 25 how how SCONJ ajst-4783 73 26 to to PART ajst-4783 73 27 quantitatively quantitatively ADV ajst-4783 73 28 describe describe VERB ajst-4783 73 29 the the DET ajst-4783 73 30 personalized personalize VERB ajst-4783 73 31 privacy privacy NOUN ajst-4783 73 32 protection protection NOUN ajst-4783 73 33 needs need NOUN ajst-4783 73 34 of of ADP ajst-4783 73 35 users user NOUN ajst-4783 73 36 . . PUNCT ajst-4783 74 1 a a DET ajst-4783 74 2 personalized personalize VERB ajst-4783 74 3 privacy privacy NOUN ajst-4783 74 4 protection protection NOUN ajst-4783 74 5 model model NOUN ajst-4783 74 6 is be AUX ajst-4783 74 7 constructed construct VERB ajst-4783 74 8 in in ADP ajst-4783 74 9 terms term NOUN ajst-4783 74 10 of of ADP ajst-4783 74 11 " " PUNCT ajst-4783 74 12 user user NOUN ajst-4783 74 13 's 's PART ajst-4783 74 14 associated associated ADJ ajst-4783 74 15 information information NOUN ajst-4783 74 16 categories category NOUN ajst-4783 74 17 " " PUNCT ajst-4783 74 18 , , PUNCT ajst-4783 74 19 " " PUNCT ajst-4783 74 20 privacy privacy NOUN ajst-4783 74 21 content content NOUN ajst-4783 74 22 of of ADP ajst-4783 74 23 information information NOUN ajst-4783 74 24 " " PUNCT ajst-4783 74 25 , , PUNCT ajst-4783 74 26 and and CCONJ ajst-4783 74 27 " " PUNCT ajst-4783 74 28 user user NOUN ajst-4783 74 29 's 's PART ajst-4783 74 30 privacy privacy NOUN ajst-4783 74 31 protection protection NOUN ajst-4783 74 32 concern concern NOUN ajst-4783 74 33 " " PUNCT ajst-4783 74 34 and and CCONJ ajst-4783 74 35 their their PRON ajst-4783 74 36 interrelationships interrelationship NOUN ajst-4783 74 37 . . PUNCT ajst-4783 75 1 6 6 NUM ajst-4783 75 2 . . PUNCT ajst-4783 75 3 personalized personalize VERB ajst-4783 75 4 recommendation recommendation NOUN ajst-4783 75 5 service service NOUN ajst-4783 75 6 6.1 6.1 NUM ajst-4783 75 7 . . PUNCT ajst-4783 76 1 genetic genetic ADJ ajst-4783 76 2 matrix matrix NOUN ajst-4783 76 3 decomposition decomposition NOUN ajst-4783 76 4 recommendation recommendation NOUN ajst-4783 76 5 algorithm algorithm NOUN ajst-4783 76 6 the the DET ajst-4783 76 7 first first ADJ ajst-4783 76 8 step step NOUN ajst-4783 76 9 of of ADP ajst-4783 76 10 the the DET ajst-4783 76 11 genetic genetic ADJ ajst-4783 76 12 matrix matrix NOUN ajst-4783 76 13 decomposition decomposition NOUN ajst-4783 76 14 recommendation recommendation NOUN ajst-4783 76 15 algorithm algorithm NOUN ajst-4783 76 16 for for ADP ajst-4783 76 17 differential differential ADJ ajst-4783 76 18 privacy privacy NOUN ajst-4783 76 19 preservation preservation NOUN ajst-4783 76 20 is be AUX ajst-4783 76 21 to to PART ajst-4783 76 22 improve improve VERB ajst-4783 76 23 the the DET ajst-4783 76 24 rating rating NOUN ajst-4783 76 25 prediction prediction NOUN ajst-4783 76 26 accuracy accuracy NOUN ajst-4783 76 27 , , PUNCT ajst-4783 76 28 and and CCONJ ajst-4783 76 29 the the DET ajst-4783 76 30 second second ADJ ajst-4783 76 31 step step NOUN ajst-4783 76 32 is be AUX ajst-4783 76 33 to to PART ajst-4783 76 34 decompose decompose VERB ajst-4783 76 35 the the DET ajst-4783 76 36 initial initial ADJ ajst-4783 76 37 problem problem NOUN ajst-4783 76 38 into into ADP ajst-4783 76 39 two two NUM ajst-4783 76 40 attributes attribute NOUN ajst-4783 76 41 : : PUNCT ajst-4783 76 42 a a DET ajst-4783 76 43 vector vector NOUN ajst-4783 76 44 of of ADP ajst-4783 76 45 hidden hide VERB ajst-4783 76 46 factors factor NOUN ajst-4783 76 47 for for ADP ajst-4783 76 48 solving solve VERB ajst-4783 76 49 users user NOUN ajst-4783 76 50 and and CCONJ ajst-4783 76 51 a a DET ajst-4783 76 52 vector vector NOUN ajst-4783 76 53 of of ADP ajst-4783 76 54 hidden hide VERB ajst-4783 76 55 factors factor NOUN ajst-4783 76 56 for for ADP ajst-4783 76 57 solving solve VERB ajst-4783 76 58 items item NOUN ajst-4783 76 59 . . PUNCT ajst-4783 77 1 the the DET ajst-4783 77 2 final final ADJ ajst-4783 77 3 objective objective ADJ ajst-4783 77 4 function function NOUN ajst-4783 77 5 is be AUX ajst-4783 77 6 listed list VERB ajst-4783 77 7 as as SCONJ ajst-4783 77 8 follows follow VERB ajst-4783 77 9 . . PUNCT ajst-4783 78 1 𝐷 𝐷 NOUN ajst-4783 78 2 , , PUNCT ajst-4783 78 3 𝑄 𝑄 PROPN ajst-4783 78 4 βˆ‘ βˆ‘ PUNCT ajst-4783 78 5 𝑅 𝑅 PROPN ajst-4783 78 6 𝑃 𝑃 NOUN ajst-4783 78 7 𝑄 𝑄 PRON ajst-4783 78 8 βˆ‘ βˆ‘ PUNCT ajst-4783 78 9 π‘ž π‘ž PART ajst-4783 78 10 𝑑 𝑑 PROPN ajst-4783 78 11 , , PUNCT ajst-4783 78 12 π‘„βˆˆβˆˆ π‘„βˆˆβˆˆ NOUN ajst-4783 78 13 ( ( PUNCT ajst-4783 78 14 4 4 NUM ajst-4783 78 15 ) ) PUNCT ajst-4783 78 16 6.2 6.2 NUM ajst-4783 78 17 . . PUNCT ajst-4783 79 1 differential differential NOUN ajst-4783 79 2 privacy privacy NOUN ajst-4783 79 3 for for ADP ajst-4783 79 4 sparse sparse ADJ ajst-4783 79 5 data datum NOUN ajst-4783 79 6 based base VERB ajst-4783 79 7 on on ADP ajst-4783 79 8 this this DET ajst-4783 79 9 project project NOUN ajst-4783 79 10 , , PUNCT ajst-4783 79 11 jiagu jiagu NOUN ajst-4783 79 12 model model NOUN ajst-4783 79 13 is be AUX ajst-4783 79 14 selected select VERB ajst-4783 79 15 as as ADP ajst-4783 79 16 a a DET ajst-4783 79 17 tool tool NOUN ajst-4783 79 18 for for ADP ajst-4783 79 19 user user NOUN ajst-4783 79 20 keyword keyword NOUN ajst-4783 79 21 extraction extraction NOUN ajst-4783 79 22 and and CCONJ ajst-4783 79 23 sentiment sentiment NOUN ajst-4783 79 24 analysis analysis NOUN ajst-4783 79 25 and and CCONJ ajst-4783 79 26 spark spark NOUN ajst-4783 79 27 platform platform NOUN ajst-4783 79 28 to to PART ajst-4783 79 29 process process VERB ajst-4783 79 30 large large ADJ ajst-4783 79 31 - - PUNCT ajst-4783 79 32 scale scale NOUN ajst-4783 79 33 data datum NOUN ajst-4783 79 34 and and CCONJ ajst-4783 79 35 perform perform VERB ajst-4783 79 36 unified unified ADJ ajst-4783 79 37 analysis analysis NOUN ajst-4783 79 38 . . PUNCT ajst-4783 80 1 because because SCONJ ajst-4783 80 2 jiagu jiagu PROPN ajst-4783 80 3 model model NOUN ajst-4783 80 4 is be AUX ajst-4783 80 5 a a DET ajst-4783 80 6 domestic domestic ADJ ajst-4783 80 7 open open ADJ ajst-4783 80 8 source source NOUN ajst-4783 80 9 natural natural ADJ ajst-4783 80 10 language language NOUN ajst-4783 80 11 processing processing NOUN ajst-4783 80 12 tool tool NOUN ajst-4783 80 13 , , PUNCT ajst-4783 80 14 providing provide VERB ajst-4783 80 15 a a DET ajst-4783 80 16 variety variety NOUN ajst-4783 80 17 of of ADP ajst-4783 80 18 common common ADJ ajst-4783 80 19 natural natural ADJ ajst-4783 80 20 language language NOUN ajst-4783 80 21 processing processing NOUN ajst-4783 80 22 functions function NOUN ajst-4783 80 23 , , PUNCT ajst-4783 80 24 rich rich ADJ ajst-4783 80 25 api api NOUN ajst-4783 80 26 , , PUNCT ajst-4783 80 27 and and CCONJ ajst-4783 80 28 easy easy ADJ ajst-4783 80 29 to to PART ajst-4783 80 30 operate operate VERB ajst-4783 80 31 , , PUNCT ajst-4783 80 32 high high ADJ ajst-4783 80 33 stability stability NOUN ajst-4783 80 34 , , PUNCT ajst-4783 80 35 spark spark NOUN ajst-4783 80 36 features feature VERB ajst-4783 80 37 a a DET ajst-4783 80 38 unified unified ADJ ajst-4783 80 39 platform platform NOUN ajst-4783 80 40 ; ; PUNCT ajst-4783 80 41 spark spark NOUN ajst-4783 80 42 platform platform NOUN ajst-4783 80 43 can can AUX ajst-4783 80 44 be be AUX ajst-4783 80 45 used use VERB ajst-4783 80 46 to to PART ajst-4783 80 47 extract extract VERB ajst-4783 80 48 key key ADJ ajst-4783 80 49 information information NOUN ajst-4783 80 50 to to PART ajst-4783 80 51 analyze analyze VERB ajst-4783 80 52 user user NOUN ajst-4783 80 53 preferences preference NOUN ajst-4783 80 54 to to PART ajst-4783 80 55 create create VERB ajst-4783 80 56 a a DET ajst-4783 80 57 " " PUNCT ajst-4783 80 58 personalized personalize VERB ajst-4783 80 59 the the DET ajst-4783 80 60 spark spark NOUN ajst-4783 80 61 platform platform NOUN ajst-4783 80 62 can can AUX ajst-4783 80 63 be be AUX ajst-4783 80 64 used use VERB ajst-4783 80 65 to to PART ajst-4783 80 66 extract extract VERB ajst-4783 80 67 key key ADJ ajst-4783 80 68 information information NOUN ajst-4783 80 69 to to PART ajst-4783 80 70 analyze analyze VERB ajst-4783 80 71 user user NOUN ajst-4783 80 72 preferences preference NOUN ajst-4783 80 73 to to PART ajst-4783 80 74 create create VERB ajst-4783 80 75 45 45 NUM ajst-4783 80 76 " " PUNCT ajst-4783 80 77 personalized personalized ADJ ajst-4783 80 78 " " PUNCT ajst-4783 80 79 travel travel NOUN ajst-4783 80 80 customization customization NOUN ajst-4783 80 81 solutions solution NOUN ajst-4783 80 82 . . PUNCT ajst-4783 81 1 based base VERB ajst-4783 81 2 on on ADP ajst-4783 81 3 the the DET ajst-4783 81 4 above above NOUN ajst-4783 81 5 , , PUNCT ajst-4783 81 6 our our PRON ajst-4783 81 7 research research NOUN ajst-4783 81 8 objective objective NOUN ajst-4783 81 9 is be AUX ajst-4783 81 10 to to PART ajst-4783 81 11 provide provide VERB ajst-4783 81 12 " " PUNCT ajst-4783 81 13 personalized personalized ADJ ajst-4783 81 14 " " PUNCT ajst-4783 81 15 travel travel NOUN ajst-4783 81 16 recommendation recommendation NOUN ajst-4783 81 17 services service NOUN ajst-4783 81 18 to to ADP ajst-4783 81 19 all all DET ajst-4783 81 20 visitors visitor NOUN ajst-4783 81 21 to to ADP ajst-4783 81 22 guizhou guizhou NOUN ajst-4783 81 23 , , PUNCT ajst-4783 81 24 with with ADP ajst-4783 81 25 the the DET ajst-4783 81 26 goal goal NOUN ajst-4783 81 27 of of ADP ajst-4783 81 28 improving improve VERB ajst-4783 81 29 the the DET ajst-4783 81 30 timeliness timeliness NOUN ajst-4783 81 31 of of ADP ajst-4783 81 32 users user NOUN ajst-4783 81 33 and and CCONJ ajst-4783 81 34 realizing realize VERB ajst-4783 81 35 the the DET ajst-4783 81 36 value value NOUN ajst-4783 81 37 of of ADP ajst-4783 81 38 the the DET ajst-4783 81 39 data datum NOUN ajst-4783 81 40 , , PUNCT ajst-4783 81 41 while while SCONJ ajst-4783 81 42 satisfying satisfy VERB ajst-4783 81 43 the the DET ajst-4783 81 44 two two NUM ajst-4783 81 45 algorithms algorithm NOUN ajst-4783 81 46 . . PUNCT ajst-4783 82 1 7 7 X ajst-4783 82 2 . . X ajst-4783 82 3 research research NOUN ajst-4783 82 4 findings finding NOUN ajst-4783 82 5 and and CCONJ ajst-4783 82 6 future future ADJ ajst-4783 82 7 prospects prospect NOUN ajst-4783 82 8 7.1 7.1 NUM ajst-4783 82 9 . . PUNCT ajst-4783 83 1 personalized personalize VERB ajst-4783 83 2 travel travel NOUN ajst-4783 83 3 recommendation recommendation NOUN ajst-4783 83 4 based base VERB ajst-4783 83 5 on on ADP ajst-4783 83 6 differential differential ADJ ajst-4783 83 7 privacy privacy NOUN ajst-4783 83 8 1 1 NUM ajst-4783 83 9 . . PUNCT ajst-4783 84 1 according accord VERB ajst-4783 84 2 to to ADP ajst-4783 84 3 the the DET ajst-4783 84 4 attractions attraction NOUN ajst-4783 84 5 or or CCONJ ajst-4783 84 6 collections collection NOUN ajst-4783 84 7 browsed browse VERB ajst-4783 84 8 by by ADP ajst-4783 84 9 users user NOUN ajst-4783 84 10 and and CCONJ ajst-4783 84 11 the the DET ajst-4783 84 12 data data NOUN ajst-4783 84 13 information information NOUN ajst-4783 84 14 of of ADP ajst-4783 84 15 users user NOUN ajst-4783 84 16 ' ' PART ajst-4783 84 17 friends friend NOUN ajst-4783 84 18 , , PUNCT ajst-4783 84 19 collect collect NOUN ajst-4783 84 20 , , PUNCT ajst-4783 84 21 process process NOUN ajst-4783 84 22 , , PUNCT ajst-4783 84 23 analyze analyze VERB ajst-4783 84 24 and and CCONJ ajst-4783 84 25 get get VERB ajst-4783 84 26 the the DET ajst-4783 84 27 interest interest NOUN ajst-4783 84 28 points point NOUN ajst-4783 84 29 of of ADP ajst-4783 84 30 users user NOUN ajst-4783 84 31 . . PUNCT ajst-4783 85 1 2 2 X ajst-4783 85 2 . . PUNCT ajst-4783 85 3 according accord VERB ajst-4783 85 4 to to ADP ajst-4783 85 5 the the DET ajst-4783 85 6 results result NOUN ajst-4783 85 7 of of ADP ajst-4783 85 8 the the DET ajst-4783 85 9 analysis analysis NOUN ajst-4783 85 10 , , PUNCT ajst-4783 85 11 it it PRON ajst-4783 85 12 is be AUX ajst-4783 85 13 necessary necessary ADJ ajst-4783 85 14 to to PART ajst-4783 85 15 recommend recommend VERB ajst-4783 85 16 to to ADP ajst-4783 85 17 the the DET ajst-4783 85 18 user user NOUN ajst-4783 85 19 tourist tourist NOUN ajst-4783 85 20 attractions attraction NOUN ajst-4783 85 21 that that PRON ajst-4783 85 22 are be AUX ajst-4783 85 23 similar similar ADJ ajst-4783 85 24 to to ADP ajst-4783 85 25 the the DET ajst-4783 85 26 user user NOUN ajst-4783 85 27 's 's PART ajst-4783 85 28 browsing browse VERB ajst-4783 85 29 history history NOUN ajst-4783 85 30 in in ADP ajst-4783 85 31 terms term NOUN ajst-4783 85 32 of of ADP ajst-4783 85 33 content content NOUN ajst-4783 85 34 or or CCONJ ajst-4783 85 35 other other ADJ ajst-4783 85 36 aspects aspect NOUN ajst-4783 85 37 . . PUNCT ajst-4783 86 1 3 3 X ajst-4783 86 2 . . X ajst-4783 86 3 can can AUX ajst-4783 86 4 not not PART ajst-4783 86 5 only only ADV ajst-4783 86 6 do do VERB ajst-4783 86 7 a a DET ajst-4783 86 8 simple simple ADJ ajst-4783 86 9 recommendation recommendation NOUN ajst-4783 86 10 service service NOUN ajst-4783 86 11 , , PUNCT ajst-4783 86 12 personalized personalized ADJ ajst-4783 86 13 recommendation recommendation NOUN ajst-4783 86 14 is be AUX ajst-4783 86 15 the the DET ajst-4783 86 16 most most ADV ajst-4783 86 17 important important ADJ ajst-4783 86 18 thing thing NOUN ajst-4783 86 19 is be AUX ajst-4783 86 20 to to PART ajst-4783 86 21 pay pay VERB ajst-4783 86 22 attention attention NOUN ajst-4783 86 23 to to ADP ajst-4783 86 24 the the DET ajst-4783 86 25 user user NOUN ajst-4783 86 26 's 's PART ajst-4783 86 27 privacy privacy NOUN ajst-4783 86 28 information information NOUN ajst-4783 86 29 leakage leakage NOUN ajst-4783 86 30 problem problem NOUN ajst-4783 86 31 , , PUNCT ajst-4783 86 32 need need VERB ajst-4783 86 33 to to PART ajst-4783 86 34 take take VERB ajst-4783 86 35 into into ADP ajst-4783 86 36 account account NOUN ajst-4783 86 37 the the DET ajst-4783 86 38 user user NOUN ajst-4783 86 39 's 's PART ajst-4783 86 40 privacy privacy NOUN ajst-4783 86 41 , , PUNCT ajst-4783 86 42 in in ADP ajst-4783 86 43 some some DET ajst-4783 86 44 aspects aspect NOUN ajst-4783 86 45 of of ADP ajst-4783 86 46 the the DET ajst-4783 86 47 user user NOUN ajst-4783 86 48 wants want VERB ajst-4783 86 49 to to PART ajst-4783 86 50 maintain maintain VERB ajst-4783 86 51 privacy privacy NOUN ajst-4783 86 52 , , PUNCT ajst-4783 86 53 the the DET ajst-4783 86 54 need need NOUN ajst-4783 86 55 to to PART ajst-4783 86 56 use use VERB ajst-4783 86 57 differential differential ADJ ajst-4783 86 58 privacy privacy NOUN ajst-4783 86 59 protection protection NOUN ajst-4783 86 60 algorithm algorithm PROPN ajst-4783 86 61 to to PART ajst-4783 86 62 first first ADV ajst-4783 86 63 encrypt encrypt VERB ajst-4783 86 64 information information NOUN ajst-4783 86 65 before before ADP ajst-4783 86 66 analysis analysis NOUN ajst-4783 86 67 . . PUNCT ajst-4783 87 1 7.2 7.2 NUM ajst-4783 87 2 . . PUNCT ajst-4783 88 1 the the DET ajst-4783 88 2 first first ADJ ajst-4783 88 3 guizhou guizhou PROPN ajst-4783 88 4 province province NOUN ajst-4783 88 5 " " PUNCT ajst-4783 88 6 help help VERB ajst-4783 88 7 farmers farmer NOUN ajst-4783 88 8 " " PUNCT ajst-4783 88 9 tourism tourism NOUN ajst-4783 88 10 recommendation recommendation NOUN ajst-4783 88 11 service service NOUN ajst-4783 88 12 in in ADP ajst-4783 88 13 accordance accordance NOUN ajst-4783 88 14 with with ADP ajst-4783 88 15 the the DET ajst-4783 88 16 state state NOUN ajst-4783 88 17 development development NOUN ajst-4783 88 18 document document NOUN ajst-4783 88 19 no no INTJ ajst-4783 88 20 . . NOUN ajst-4783 88 21 2 2 NUM ajst-4783 88 22 , , PUNCT ajst-4783 88 23 we we PRON ajst-4783 88 24 will will AUX ajst-4783 88 25 promote promote VERB ajst-4783 88 26 the the DET ajst-4783 88 27 construction construction NOUN ajst-4783 88 28 of of ADP ajst-4783 88 29 the the DET ajst-4783 88 30 countryside countryside NOUN ajst-4783 88 31 , , PUNCT ajst-4783 88 32 and and CCONJ ajst-4783 88 33 this this DET ajst-4783 88 34 project project NOUN ajst-4783 88 35 will will AUX ajst-4783 88 36 not not PART ajst-4783 88 37 only only ADV ajst-4783 88 38 help help VERB ajst-4783 88 39 the the DET ajst-4783 88 40 construction construction NOUN ajst-4783 88 41 of of ADP ajst-4783 88 42 the the DET ajst-4783 88 43 countryside countryside NOUN ajst-4783 88 44 through through ADP ajst-4783 88 45 rural rural ADJ ajst-4783 88 46 tourism tourism NOUN ajst-4783 88 47 , , PUNCT ajst-4783 88 48 but but CCONJ ajst-4783 88 49 also also ADV ajst-4783 88 50 provide provide VERB ajst-4783 88 51 employment employment NOUN ajst-4783 88 52 opportunities opportunity NOUN ajst-4783 88 53 for for ADP ajst-4783 88 54 rural rural ADJ ajst-4783 88 55 workers worker NOUN ajst-4783 88 56 and and CCONJ ajst-4783 88 57 villagers villager NOUN ajst-4783 88 58 through through ADP ajst-4783 88 59 this this DET ajst-4783 88 60 project project NOUN ajst-4783 88 61 , , PUNCT ajst-4783 88 62 and and CCONJ ajst-4783 88 63 drive drive VERB ajst-4783 88 64 villagers villager NOUN ajst-4783 88 65 to to PART ajst-4783 88 66 get get VERB ajst-4783 88 67 rich rich ADJ ajst-4783 88 68 to to PART ajst-4783 88 69 help help VERB ajst-4783 88 70 revitalize revitalize VERB ajst-4783 88 71 the the DET ajst-4783 88 72 countryside countryside NOUN ajst-4783 88 73 . . PUNCT ajst-4783 89 1 7.3 7.3 NUM ajst-4783 89 2 . . PUNCT ajst-4783 90 1 research research NOUN ajst-4783 90 2 findings finding NOUN ajst-4783 90 3 through through ADP ajst-4783 90 4 the the DET ajst-4783 90 5 research research NOUN ajst-4783 90 6 , , PUNCT ajst-4783 90 7 we we PRON ajst-4783 90 8 found find VERB ajst-4783 90 9 that that SCONJ ajst-4783 90 10 , , PUNCT ajst-4783 90 11 due due ADP ajst-4783 90 12 to to ADP ajst-4783 90 13 the the DET ajst-4783 90 14 prominent prominent ADJ ajst-4783 90 15 problem problem NOUN ajst-4783 90 16 of of ADP ajst-4783 90 17 information information NOUN ajst-4783 90 18 leakage leakage NOUN ajst-4783 90 19 in in ADP ajst-4783 90 20 the the DET ajst-4783 90 21 process process NOUN ajst-4783 90 22 of of ADP ajst-4783 90 23 using use VERB ajst-4783 90 24 tourism tourism NOUN ajst-4783 90 25 software software NOUN ajst-4783 90 26 , , PUNCT ajst-4783 90 27 this this DET ajst-4783 90 28 paper paper NOUN ajst-4783 90 29 combines combine VERB ajst-4783 90 30 the the DET ajst-4783 90 31 " " PUNCT ajst-4783 90 32 differential differential ADJ ajst-4783 90 33 privacy privacy NOUN ajst-4783 90 34 non non ADJ ajst-4783 90 35 - - ADJ ajst-4783 90 36 negative negative ADJ ajst-4783 90 37 matrix matrix NOUN ajst-4783 90 38 sorting sorting NOUN ajst-4783 90 39 recommendation recommendation NOUN ajst-4783 90 40 algorithm algorithm NOUN ajst-4783 90 41 for for ADP ajst-4783 90 42 sparse sparse ADJ ajst-4783 90 43 data datum NOUN ajst-4783 90 44 " " PUNCT ajst-4783 90 45 and and CCONJ ajst-4783 90 46 the the DET ajst-4783 90 47 " " PUNCT ajst-4783 90 48 genetic genetic ADJ ajst-4783 90 49 matrix matrix NOUN ajst-4783 90 50 decomposition decomposition NOUN ajst-4783 90 51 recommendation recommendation NOUN ajst-4783 90 52 algorithm algorithm NOUN ajst-4783 90 53 to to PART ajst-4783 90 54 meet meet VERB ajst-4783 90 55 differential differential ADJ ajst-4783 90 56 privacy privacy NOUN ajst-4783 90 57 protection protection NOUN ajst-4783 90 58 " " PUNCT ajst-4783 90 59 with with ADP ajst-4783 90 60 the the DET ajst-4783 90 61 guizhou guizhou NOUN ajst-4783 90 62 " " PUNCT ajst-4783 90 63 help help VERB ajst-4783 90 64 farmers farmer NOUN ajst-4783 90 65 " " PUNCT ajst-4783 90 66 tourism tourism NOUN ajst-4783 90 67 personalized personalize VERB ajst-4783 90 68 recommendation recommendation NOUN ajst-4783 90 69 service service NOUN ajst-4783 90 70 . . PUNCT ajst-4783 91 1 and and CCONJ ajst-4783 91 2 the the DET ajst-4783 91 3 personalized personalized ADJ ajst-4783 91 4 recommendation recommendation NOUN ajst-4783 91 5 service service NOUN ajst-4783 91 6 of of ADP ajst-4783 91 7 guizhou guizhou NOUN ajst-4783 91 8 " " PUNCT ajst-4783 91 9 help help VERB ajst-4783 91 10 farmers farmer NOUN ajst-4783 91 11 " " PUNCT ajst-4783 91 12 , , PUNCT ajst-4783 91 13 encrypting encrypt VERB ajst-4783 91 14 user user NOUN ajst-4783 91 15 information information NOUN ajst-4783 91 16 , , PUNCT ajst-4783 91 17 and and CCONJ ajst-4783 91 18 analyzing analyze VERB ajst-4783 91 19 the the DET ajst-4783 91 20 encrypted encrypt VERB ajst-4783 91 21 user user NOUN ajst-4783 91 22 information information NOUN ajst-4783 91 23 with with ADP ajst-4783 91 24 jiagu jiagu PROPN ajst-4783 91 25 model model NOUN ajst-4783 91 26 and and CCONJ ajst-4783 91 27 spark spark NOUN ajst-4783 91 28 platform platform NOUN ajst-4783 91 29 , , PUNCT ajst-4783 91 30 so so SCONJ ajst-4783 91 31 that that SCONJ ajst-4783 91 32 users user NOUN ajst-4783 91 33 can can AUX ajst-4783 91 34 get get VERB ajst-4783 91 35 accurate accurate ADJ ajst-4783 91 36 travel travel NOUN ajst-4783 91 37 recommendation recommendation NOUN ajst-4783 91 38 contents content NOUN ajst-4783 91 39 and and CCONJ ajst-4783 91 40 do do AUX ajst-4783 91 41 not not PART ajst-4783 91 42 worry worry VERB ajst-4783 91 43 about about ADP ajst-4783 91 44 the the DET ajst-4783 91 45 leakage leakage NOUN ajst-4783 91 46 of of ADP ajst-4783 91 47 personal personal ADJ ajst-4783 91 48 privacy privacy NOUN ajst-4783 91 49 when when SCONJ ajst-4783 91 50 using use VERB ajst-4783 91 51 personalized personalized ADJ ajst-4783 91 52 recommendation recommendation NOUN ajst-4783 91 53 service service NOUN ajst-4783 91 54 . . PUNCT ajst-4783 92 1 the the DET ajst-4783 92 2 personalized personalized ADJ ajst-4783 92 3 travel travel NOUN ajst-4783 92 4 recommendation recommendation NOUN ajst-4783 92 5 service service NOUN ajst-4783 92 6 provides provide VERB ajst-4783 92 7 users user NOUN ajst-4783 92 8 with with ADP ajst-4783 92 9 accurate accurate ADJ ajst-4783 92 10 travel travel NOUN ajst-4783 92 11 recommendation recommendation NOUN ajst-4783 92 12 contents content NOUN ajst-4783 92 13 without without ADP ajst-4783 92 14 worrying worry VERB ajst-4783 92 15 about about ADP ajst-4783 92 16 the the DET ajst-4783 92 17 leakage leakage NOUN ajst-4783 92 18 of of ADP ajst-4783 92 19 personal personal ADJ ajst-4783 92 20 privacy privacy NOUN ajst-4783 92 21 information information NOUN ajst-4783 92 22 . . PUNCT ajst-4783 93 1 the the DET ajst-4783 93 2 differential differential ADJ ajst-4783 93 3 privacy privacy NOUN ajst-4783 93 4 personalized personalize VERB ajst-4783 93 5 travel travel NOUN ajst-4783 93 6 recommendation recommendation NOUN ajst-4783 93 7 can can AUX ajst-4783 93 8 achieve achieve VERB ajst-4783 93 9 both both DET ajst-4783 93 10 personalized personalized ADJ ajst-4783 93 11 travel travel NOUN ajst-4783 93 12 recommendation recommendation NOUN ajst-4783 93 13 and and CCONJ ajst-4783 93 14 protection protection NOUN ajst-4783 93 15 of of ADP ajst-4783 93 16 user user NOUN ajst-4783 93 17 information information NOUN ajst-4783 93 18 . . PUNCT ajst-4783 94 1 7.4 7.4 NUM ajst-4783 94 2 . . PUNCT ajst-4783 95 1 future future ADJ ajst-4783 95 2 outlook outlook NOUN ajst-4783 95 3 in in ADP ajst-4783 95 4 the the DET ajst-4783 95 5 next next ADJ ajst-4783 95 6 continue continue NOUN ajst-4783 95 7 to to PART ajst-4783 95 8 strengthen strengthen VERB ajst-4783 95 9 ( ( PUNCT ajst-4783 95 10 1 1 NUM ajst-4783 95 11 ) ) PUNCT ajst-4783 95 12 to to PART ajst-4783 95 13 ensure ensure VERB ajst-4783 95 14 the the DET ajst-4783 95 15 correctness correctness NOUN ajst-4783 95 16 and and CCONJ ajst-4783 95 17 accuracy accuracy NOUN ajst-4783 95 18 of of ADP ajst-4783 95 19 recommendations recommendation NOUN ajst-4783 95 20 without without ADP ajst-4783 95 21 revealing reveal VERB ajst-4783 95 22 users user NOUN ajst-4783 95 23 ' ' PART ajst-4783 95 24 personal personal ADJ ajst-4783 95 25 privacy privacy NOUN ajst-4783 95 26 and and CCONJ ajst-4783 95 27 sensitive sensitive ADJ ajst-4783 95 28 information information NOUN ajst-4783 95 29 ; ; PUNCT ajst-4783 95 30 ( ( PUNCT ajst-4783 95 31 2 2 X ajst-4783 95 32 ) ) PUNCT ajst-4783 95 33 to to PART ajst-4783 95 34 strengthen strengthen VERB ajst-4783 95 35 the the DET ajst-4783 95 36 modeling modeling NOUN ajst-4783 95 37 of of ADP ajst-4783 95 38 personalized personalize VERB ajst-4783 95 39 privacy privacy NOUN ajst-4783 95 40 protection protection NOUN ajst-4783 95 41 needs need NOUN ajst-4783 95 42 of of ADP ajst-4783 95 43 data datum NOUN ajst-4783 95 44 models model NOUN ajst-4783 95 45 and and CCONJ ajst-4783 95 46 user user NOUN ajst-4783 95 47 models model NOUN ajst-4783 95 48 , , PUNCT ajst-4783 95 49 and and CCONJ ajst-4783 95 50 construct construct VERB ajst-4783 95 51 new new ADJ ajst-4783 95 52 methods method NOUN ajst-4783 95 53 data datum NOUN ajst-4783 95 54 perturbation perturbation NOUN ajst-4783 95 55 methods method NOUN ajst-4783 95 56 to to PART ajst-4783 95 57 enhance enhance VERB ajst-4783 95 58 the the DET ajst-4783 95 59 targeting targeting NOUN ajst-4783 95 60 of of ADP ajst-4783 95 61 privacy privacy NOUN ajst-4783 95 62 protection protection NOUN ajst-4783 95 63 ; ; PUNCT ajst-4783 95 64 ( ( PUNCT ajst-4783 95 65 3 3 X ajst-4783 95 66 ) ) PUNCT ajst-4783 95 67 to to PART ajst-4783 95 68 introduce introduce VERB ajst-4783 95 69 perturbation perturbation NOUN ajst-4783 95 70 noise noise NOUN ajst-4783 95 71 for for ADP ajst-4783 95 72 the the DET ajst-4783 95 73 characteristics characteristic NOUN ajst-4783 95 74 of of ADP ajst-4783 95 75 relevant relevant ADJ ajst-4783 95 76 links link NOUN ajst-4783 95 77 in in ADP ajst-4783 95 78 the the DET ajst-4783 95 79 computation computation NOUN ajst-4783 95 80 process process NOUN ajst-4783 95 81 of of ADP ajst-4783 95 82 recommendation recommendation NOUN ajst-4783 95 83 algorithms algorithm NOUN ajst-4783 95 84 , , PUNCT ajst-4783 95 85 taking take VERB ajst-4783 95 86 into into ADP ajst-4783 95 87 account account NOUN ajst-4783 95 88 privacy privacy NOUN ajst-4783 95 89 protection protection NOUN ajst-4783 95 90 and and CCONJ ajst-4783 95 91 recommendation recommendation NOUN ajst-4783 95 92 accuracy accuracy NOUN ajst-4783 95 93 . . PUNCT ajst-4783 96 1 it it PRON ajst-4783 96 2 guarantees guarantee VERB ajst-4783 96 3 the the DET ajst-4783 96 4 availability availability NOUN ajst-4783 96 5 of of ADP ajst-4783 96 6 data datum NOUN ajst-4783 96 7 while while SCONJ ajst-4783 96 8 ensuring ensure VERB ajst-4783 96 9 privacy privacy NOUN ajst-4783 96 10 and and CCONJ ajst-4783 96 11 security security NOUN ajst-4783 96 12 . . PUNCT ajst-4783 97 1 it it PRON ajst-4783 97 2 not not PART ajst-4783 97 3 only only ADV ajst-4783 97 4 allows allow VERB ajst-4783 97 5 users user NOUN ajst-4783 97 6 to to PART ajst-4783 97 7 experience experience VERB ajst-4783 97 8 personalized personalized ADJ ajst-4783 97 9 travel travel NOUN ajst-4783 97 10 recommendation recommendation NOUN ajst-4783 97 11 services service NOUN ajst-4783 97 12 but but CCONJ ajst-4783 97 13 also also ADV ajst-4783 97 14 protects protect VERB ajst-4783 97 15 users user NOUN ajst-4783 97 16 ' ' PART ajst-4783 97 17 information information NOUN ajst-4783 97 18 security security NOUN ajst-4783 97 19 , , PUNCT ajst-4783 97 20 so so SCONJ ajst-4783 97 21 that that SCONJ ajst-4783 97 22 tourists tourist NOUN ajst-4783 97 23 from from ADP ajst-4783 97 24 all all ADV ajst-4783 97 25 over over ADP ajst-4783 97 26 the the DET ajst-4783 97 27 world world NOUN ajst-4783 97 28 who who PRON ajst-4783 97 29 come come VERB ajst-4783 97 30 to to ADP ajst-4783 97 31 guizhou guizhou NOUN ajst-4783 97 32 can can AUX ajst-4783 97 33 realize realize VERB ajst-4783 97 34 " " PUNCT ajst-4783 97 35 easy easy ADJ ajst-4783 97 36 travel travel NOUN ajst-4783 97 37 " " PUNCT ajst-4783 97 38 , , PUNCT ajst-4783 97 39 " " PUNCT ajst-4783 97 40 safe safe ADJ ajst-4783 97 41 travel travel NOUN ajst-4783 97 42 " " PUNCT ajst-4783 97 43 and and CCONJ ajst-4783 97 44 " " PUNCT ajst-4783 97 45 enjoyable enjoyable ADJ ajst-4783 97 46 travel travel NOUN ajst-4783 97 47 " " PUNCT ajst-4783 97 48 . . PUNCT ajst-4783 98 1 the the DET ajst-4783 98 2 service service NOUN ajst-4783 98 3 of of ADP ajst-4783 98 4 " " PUNCT ajst-4783 98 5 easy easy ADJ ajst-4783 98 6 tour tour NOUN ajst-4783 98 7 " " PUNCT ajst-4783 98 8 , , PUNCT ajst-4783 98 9 " " PUNCT ajst-4783 98 10 safe safe ADJ ajst-4783 98 11 tour tour NOUN ajst-4783 98 12 " " PUNCT ajst-4783 98 13 and and CCONJ ajst-4783 98 14 " " PUNCT ajst-4783 98 15 enjoy enjoy VERB ajst-4783 98 16 tour tour NOUN ajst-4783 98 17 " " PUNCT ajst-4783 98 18 is be AUX ajst-4783 98 19 available available ADJ ajst-4783 98 20 . . PUNCT ajst-4783 99 1 acknowledgment acknowledgment NOUN ajst-4783 99 2 the the DET ajst-4783 99 3 work work NOUN ajst-4783 99 4 described describe VERB ajst-4783 99 5 in in ADP ajst-4783 99 6 this this DET ajst-4783 99 7 paper paper NOUN ajst-4783 99 8 was be AUX ajst-4783 99 9 supported support VERB ajst-4783 99 10 by by ADP ajst-4783 99 11 college college NOUN ajst-4783 99 12 students student NOUN ajst-4783 99 13 ' ' PART ajst-4783 99 14 innovative innovative ADJ ajst-4783 99 15 entrepreneurial entrepreneurial ADJ ajst-4783 99 16 training training NOUN ajst-4783 99 17 plan plan NOUN ajst-4783 99 18 program program NOUN ajst-4783 99 19 of of ADP ajst-4783 99 20 guizhou guizhou PROPN ajst-4783 99 21 education education PROPN ajst-4783 99 22 university university PROPN ajst-4783 99 23 ( ( PUNCT ajst-4783 99 24 no.202214223149 no.202214223149 PROPN ajst-4783 99 25 ) ) PUNCT ajst-4783 99 26 , , PUNCT ajst-4783 99 27 the the DET ajst-4783 99 28 science science NOUN ajst-4783 99 29 and and CCONJ ajst-4783 99 30 technology technology NOUN ajst-4783 99 31 foundation foundation NOUN ajst-4783 99 32 project project NOUN ajst-4783 99 33 of of ADP ajst-4783 99 34 guizhou guizhou PROPN ajst-4783 99 35 province province PROPN ajst-4783 99 36 ( ( PUNCT ajst-4783 99 37 qiankehejichu qiankehejichu PROPN ajst-4783 100 1 [ [ X ajst-4783 100 2 2020 2020 NUM ajst-4783 100 3 ] ] X ajst-4783 100 4 1y422 1y422 NUM ajst-4783 100 5 , , PUNCT ajst-4783 100 6 qiankehejichuzk[2022]yiban329 qiankehejichuzk[2022]yiban329 PROPN ajst-4783 100 7 , , PUNCT ajst-4783 100 8 and and CCONJ ajst-4783 100 9 qiankehejichuzk[2022]yiban331 qiankehejichuzk[2022]yiban331 NOUN ajst-4783 100 10 ) ) PUNCT ajst-4783 100 11 references reference NOUN ajst-4783 100 12 [ [ X ajst-4783 100 13 1 1 NUM ajst-4783 100 14 ] ] PUNCT ajst-4783 100 15 dworkc dworkc NOUN ajst-4783 100 16 , , PUNCT ajst-4783 100 17 rotha.the rotha.the DET ajst-4783 100 18 algorithmic algorithmic ADJ ajst-4783 100 19 foundations foundation NOUN ajst-4783 100 20 of of ADP ajst-4783 100 21 difrential difrential ADJ ajst-4783 100 22 privacy[j privacy[j NOUN ajst-4783 100 23 ] ] PUNCT ajst-4783 100 24 . . PUNCT ajst-4783 101 1 foundations foundation NOUN ajst-4783 101 2 and and CCONJ ajst-4783 101 3 trends trend NOUN ajst-4783 101 4 in in ADP ajst-4783 101 5 theoretical theoretical ADJ ajst-4783 101 6 computer computer NOUN ajst-4783 101 7 science science NOUN ajst-4783 101 8 , , PUNCT ajst-4783 101 9 2013 2013 NUM ajst-4783 101 10 , , PUNCT ajst-4783 101 11 9(3/4 9(3/4 NUM ajst-4783 101 12 ): ): PUNCT ajst-4783 101 13 211 211 NUM ajst-4783 101 14 - - SYM ajst-4783 101 15 407 407 NUM ajst-4783 101 16 . . PUNCT ajst-4783 102 1 [ [ X ajst-4783 102 2 2 2 NUM ajst-4783 102 3 ] ] PUNCT ajst-4783 102 4 dewrir dewrir NOUN ajst-4783 102 5 , , PUNCT ajst-4783 102 6 thurimellar thurimellar NOUN ajst-4783 102 7 . . PUNCT ajst-4783 103 1 exploiting exploit VERB ajst-4783 103 2 service service NOUN ajst-4783 103 3 similarity similarity NOUN ajst-4783 103 4 for for ADP ajst-4783 103 5 privacy privacy NOUN ajst-4783 103 6 in in ADP ajst-4783 103 7 location location NOUN ajst-4783 103 8 - - PUNCT ajst-4783 103 9 based base VERB ajst-4783 103 10 search search NOUN ajst-4783 103 11 queries[j queries[j PROPN ajst-4783 103 12 ] ] PUNCT ajst-4783 103 13 . . PUNCT ajst-4783 104 1 ieee ieee NOUN ajst-4783 104 2 transactions transaction NOUN ajst-4783 104 3 on on ADP ajst-4783 104 4 parallel parallel ADJ ajst-4783 104 5 and and CCONJ ajst-4783 104 6 distributed distributed ADJ ajst-4783 104 7 systems system NOUN ajst-4783 104 8 , , PUNCT ajst-4783 104 9 2014 2014 NUM ajst-4783 104 10 , , PUNCT ajst-4783 104 11 25 25 NUM ajst-4783 104 12 ( ( PUNCT ajst-4783 104 13 2 2 NUM ajst-4783 104 14 ): ): PUNCT ajst-4783 104 15 374 374 NUM ajst-4783 104 16 - - SYM ajst-4783 104 17 383 383 NUM ajst-4783 104 18 . . PUNCT ajst-4783 105 1 [ [ X ajst-4783 105 2 3 3 NUM ajst-4783 105 3 ] ] X ajst-4783 105 4 medkovΓ‘j medkovΓ‘j NOUN ajst-4783 105 5 . . PUNCT ajst-4783 105 6 composition composition NOUN ajst-4783 105 7 attack attack NOUN ajst-4783 105 8 against against ADP ajst-4783 105 9 social social ADJ ajst-4783 105 10 network network NOUN ajst-4783 105 11 data[j data[j NOUN ajst-4783 105 12 ] ] PUNCT ajst-4783 105 13 . . PUNCT ajst-4783 106 1 computers computer NOUN ajst-4783 106 2 & & CCONJ ajst-4783 106 3 security security NOUN ajst-4783 106 4 , , PUNCT ajst-4783 106 5 2018 2018 NUM ajst-4783 106 6 , , PUNCT ajst-4783 106 7 74 74 NUM ajst-4783 106 8 : : SYM ajst-4783 106 9 115 115 NUM ajst-4783 106 10 - - SYM ajst-4783 106 11 129 129 NUM ajst-4783 106 12 . . PUNCT ajst-4783 107 1 [ [ X ajst-4783 107 2 4 4 NUM ajst-4783 107 3 ] ] X ajst-4783 107 4 peng peng PROPN ajst-4783 107 5 , , PUNCT ajst-4783 107 6 h. h. PROPN ajst-4783 107 7 l. l. PROPN ajst-4783 107 8 , , PUNCT ajst-4783 107 9 jin jin PROPN ajst-4783 107 10 , , PUNCT ajst-4783 107 11 k. k. PROPN ajst-4783 107 12 z. z. PROPN ajst-4783 107 13 , , PUNCT ajst-4783 107 14 fu fu PROPN ajst-4783 107 15 , , PUNCT ajst-4783 107 16 c. c. PROPN ajst-4783 107 17 c. c. PROPN ajst-4783 107 18 , , PUNCT ajst-4783 107 19 et et PROPN ajst-4783 107 20 al al PROPN ajst-4783 107 21 . . PUNCT ajst-4783 108 1 a a DET ajst-4783 108 2 sequence sequence NOUN ajst-4783 108 3 lattice lattice NOUN ajst-4783 108 4 - - PUNCT ajst-4783 108 5 based base VERB ajst-4783 108 6 approach approach NOUN ajst-4783 108 7 to to ADP ajst-4783 108 8 privacy privacy NOUN ajst-4783 108 9 temporal temporal ADJ ajst-4783 108 10 pattern pattern NOUN ajst-4783 108 11 mining[j mining[j NOUN ajst-4783 108 12 ] ] PUNCT ajst-4783 108 13 . . PUNCT ajst-4783 109 1 journal journal PROPN ajst-4783 109 2 of of ADP ajst-4783 109 3 electronics electronic NOUN ajst-4783 109 4 , , PUNCT ajst-4783 109 5 2020 2020 NUM ajst-4783 109 6 , , PUNCT ajst-4783 109 7 48(1 48(1 NOUN ajst-4783 109 8 ): ): PUNCT ajst-4783 109 9 153 153 NUM ajst-4783 109 10 - - SYM ajst-4783 109 11 163 163 NUM ajst-4783 109 12 . . PUNCT ajst-4783 110 1 peng peng PROPN ajst-4783 110 2 h h PROPN ajst-4783 110 3 l l PROPN ajst-4783 110 4 , , PUNCT ajst-4783 110 5 jin jin PROPN ajst-4783 110 6 kz kz PROPN ajst-4783 110 7 , , PUNCT ajst-4783 110 8 fu fu PROPN ajst-4783 110 9 c c PROPN ajst-4783 110 10 c c X ajst-4783 110 11 , , PUNCT ajst-4783 110 12 et et PROPN ajst-4783 110 13 al al PROPN ajst-4783 110 14 . . PROPN ajst-4783 111 1 private private ADJ ajst-4783 111 2 time time NOUN ajst-4783 111 3 series series NOUN ajst-4783 111 4 pattern pattern NOUN ajst-4783 111 5 mining mine VERB ajst-4783 111 6 with with ADP ajst-4783 111 7 sequential sequential ADJ ajst-4783 111 8 lattice[j lattice[j NOUN ajst-4783 111 9 ] ] PUNCT ajst-4783 111 10 . . PUNCT ajst-4783 112 1 acta acta PROPN ajst-4783 112 2 electronica electronica PROPN ajst-4783 112 3 sinica sinica PROPN ajst-4783 112 4 , , PUNCT ajst-4783 112 5 2020 2020 NUM ajst-4783 112 6 , , PUNCT ajst-4783 112 7 48(1 48(1 NOUN ajst-4783 112 8 ): ): PUNCT ajst-4783 112 9 153 153 NUM ajst-4783 112 10 - - SYM ajst-4783 112 11 163 163 NUM ajst-4783 112 12 . . PUNCT ajst-4783 113 1 ( ( PUNCT ajst-4783 113 2 in in ADP ajst-4783 113 3 chinese chinese PROPN ajst-4783 113 4 ) ) PUNCT ajst-4783 114 1 [ [ X ajst-4783 114 2 5 5 X ajst-4783 114 3 ] ] PUNCT ajst-4783 114 4 chen chen PROPN ajst-4783 114 5 s s PROPN ajst-4783 114 6 , , PUNCT ajst-4783 114 7 fu fu ADJ ajst-4783 114 8 a a PROPN ajst-4783 114 9 - - PUNCT ajst-4783 114 10 m m NOUN ajst-4783 114 11 , , PUNCT ajst-4783 114 12 ke ke PROPN ajst-4783 114 13 h h PROPN ajst-4783 114 14 - - PUNCT ajst-4783 114 15 f f PROPN ajst-4783 114 16 , , PUNCT ajst-4783 114 17 et et PROPN ajst-4783 114 18 al al PROPN ajst-4783 114 19 . . PROPN ajst-4783 114 20 mcdp mcdp PROPN ajst-4783 114 21 : : PUNCT ajst-4783 114 22 a a DET ajst-4783 114 23 neural neural ADJ ajst-4783 114 24 networkbased networkbased ADJ ajst-4783 114 25 approach approach NOUN ajst-4783 114 26 to to ADP ajst-4783 114 27 multicluster multicluster ADJ ajst-4783 114 28 distributed distribute VERB ajst-4783 114 29 differential differential NOUN ajst-4783 114 30 privacy privacy NOUN ajst-4783 114 31 data datum NOUN ajst-4783 114 32 distribution[j distribution[j PROPN ajst-4783 114 33 ] ] PUNCT ajst-4783 114 34 . . PUNCT ajst-4783 115 1 journal journal PROPN ajst-4783 115 2 of of ADP ajst-4783 115 3 electronics electronic NOUN ajst-4783 115 4 , , PUNCT ajst-4783 115 5 acta acta PROPN ajst-4783 115 6 electronica electronica PROPN ajst-4783 115 7 sinica sinica PROPN ajst-4783 115 8 , , PUNCT ajst-4783 115 9 2020 2020 NUM ajst-4783 115 10 , , PUNCT ajst-4783 115 11 48(12 48(12 NUM ajst-4783 115 12 ): ): PUNCT ajst-4783 115 13 2297 2297 NUM ajst-4783 115 14 - - SYM ajst-4783 115 15 2303 2303 NUM ajst-4783 115 16 . . PUNCT ajst-4783 116 1 ( ( PUNCT ajst-4783 116 2 in in ADP ajst-4783 116 3 chinese chinese PROPN ajst-4783 116 4 ) ) PUNCT ajst-4783 117 1 [ [ X ajst-4783 117 2 6 6 NUM ajst-4783 117 3 ] ] X ajst-4783 117 4 xiaoxk xiaoxk PROPN ajst-4783 117 5 , , PUNCT ajst-4783 117 6 taoyf taoyf PROPN ajst-4783 117 7 , , PUNCT ajst-4783 117 8 chenmh chenmh NOUN ajst-4783 117 9 . . PUNCT ajst-4783 118 1 optimal optimal ADJ ajst-4783 118 2 random⁃perturbation random⁃perturbation NOUN ajst-4783 118 3 at at ADP ajst-4783 118 4 multiple multiple ADJ ajst-4783 118 5 privacy privacy NOUN ajst-4783 118 6 levels[j levels[j PROPN ajst-4783 118 7 ] ] PUNCT ajst-4783 118 8 . . PUNCT ajst-4783 119 1 proceedings proceeding NOUN ajst-4783 119 2 of of ADP ajst-4783 119 3 the the DET ajst-4783 119 4 vldb vldb NOUN ajst-4783 119 5 endowment endowment NOUN ajst-4783 119 6 , , PUNCT ajst-4783 119 7 2009 2009 NUM ajst-4783 119 8 , , PUNCT ajst-4783 119 9 2(1 2(1 NUM ajst-4783 119 10 ): ): PUNCT ajst-4783 119 11 814 814 NUM ajst-4783 119 12 - - SYM ajst-4783 119 13 825 825 NUM ajst-4783 119 14 . . PUNCT ajst-4783 120 1 [ [ X ajst-4783 120 2 7 7 X ajst-4783 120 3 ] ] X ajst-4783 120 4 kiferd kiferd NOUN ajst-4783 120 5 . . PUNCT ajst-4783 121 1 on on ADP ajst-4783 121 2 estimating estimate VERB ajst-4783 121 3 the the DET ajst-4783 121 4 swapping swap VERB ajst-4783 121 5 rate rate NOUN ajst-4783 121 6 for for ADP ajst-4783 121 7 categorical categorical ADJ ajst-4783 121 8 data[c]//proceedings data[c]//proceeding NOUN ajst-4783 121 9 of of ADP ajst-4783 121 10 the the DET ajst-4783 121 11 21th 21th ADJ ajst-4783 121 12 acm acm PROPN ajst-4783 121 13 sigkdd sigkdd PROPN ajst-4783 121 14 international international ADJ ajst-4783 121 15 conference conference NOUN ajst-4783 121 16 on on ADP ajst-4783 121 17 knowledge knowledge NOUN ajst-4783 121 18 discovery discovery PROPN ajst-4783 121 19 and and CCONJ ajst-4783 121 20 data datum NOUN ajst-4783 121 21 mining mining NOUN ajst-4783 121 22 . . PUNCT ajst-4783 122 1 new new PROPN ajst-4783 122 2 york york PROPN ajst-4783 122 3 , , PUNCT ajst-4783 122 4 usa usa PROPN ajst-4783 122 5 : : PUNCT ajst-4783 122 6 acm acm PROPN ajst-4783 122 7 , , PUNCT ajst-4783 122 8 2015 2015 NUM ajst-4783 122 9 : : PUNCT ajst-4783 122 10 557 557 NUM ajst-4783 122 11 - - SYM ajst-4783 122 12 566 566 NUM ajst-4783 122 13 . . PUNCT ajst-4783 123 1 [ [ X ajst-4783 123 2 8 8 NUM ajst-4783 123 3 ] ] X ajst-4783 123 4 sud sud X ajst-4783 123 5 , , PUNCT ajst-4783 123 6 caojn caojn NOUN ajst-4783 123 7 , , PUNCT ajst-4783 123 8 linh linh PROPN ajst-4783 123 9 , , PUNCT ajst-4783 123 10 etal etal NOUN ajst-4783 123 11 . . PUNCT ajst-4783 124 1 differentially differentially ADV ajst-4783 124 2 private private ADJ ajst-4783 124 3 kmeans kmean NOUN ajst-4783 124 4 clustering cluster VERB ajst-4783 124 5 and and CCONJ ajst-4783 124 6 a a DET ajst-4783 124 7 hybrid hybrid ADJ ajst-4783 124 8 approach approach NOUN ajst-4783 124 9 to to ADP ajst-4783 124 10 private private ADJ ajst-4783 124 11 optimization[j optimization[j PROPN ajst-4783 124 12 ] ] PUNCT ajst-4783 124 13 . . PUNCT ajst-4783 125 1 acm acm PROPN ajst-4783 125 2 transactions transaction NOUN ajst-4783 125 3 on on ADP ajst-4783 125 4 privacy privacy NOUN ajst-4783 125 5 and and CCONJ ajst-4783 125 6 security security NOUN ajst-4783 125 7 , , PUNCT ajst-4783 125 8 2017 2017 NUM ajst-4783 125 9 , , PUNCT ajst-4783 125 10 20(4 20(4 NOUN ajst-4783 125 11 ): ): PUNCT ajst-4783 125 12 1 1 NUM ajst-4783 125 13 - - SYM ajst-4783 125 14 33 33 NUM ajst-4783 125 15 . . PUNCT ajst-4783 126 1 [ [ X ajst-4783 126 2 9 9 NUM ajst-4783 126 3 ] ] SYM ajst-4783 126 4 nguyentd nguyentd ADJ ajst-4783 126 5 , , PUNCT ajst-4783 126 6 guptas gupta NOUN ajst-4783 126 7 , , PUNCT ajst-4783 126 8 ranast ranast ADJ ajst-4783 126 9 , , PUNCT ajst-4783 126 10 etal etal NOUN ajst-4783 126 11 . . PUNCT ajst-4783 127 1 privacy privacy NOUN ajst-4783 127 2 aware aware ADJ ajst-4783 127 3 kmeans kmean NOUN ajst-4783 127 4 clustering cluster VERB ajst-4783 127 5 with with ADP ajst-4783 127 6 high high ADJ ajst-4783 127 7 utility[c]//pacificasia utility[c]//pacificasia PROPN ajst-4783 127 8 conference conference NOUN ajst-4783 127 9 on on ADP ajst-4783 127 10 knowledge knowledge NOUN ajst-4783 127 11 discovery discovery NOUN ajst-4783 127 12 and and CCONJ ajst-4783 127 13 data datum NOUN ajst-4783 127 14 min⁃. min⁃. PROPN ajst-4783 127 15 cham cham PROPN ajst-4783 127 16 : : PUNCT ajst-4783 127 17 springer springer NOUN ajst-4783 127 18 , , PUNCT ajst-4783 127 19 2016 2016 NUM ajst-4783 127 20 : : PUNCT ajst-4783 127 21 388 388 NUM ajst-4783 127 22 - - SYM ajst-4783 127 23 400 400 NUM ajst-4783 127 24 . . PUNCT ajst-4783 128 1 [ [ X ajst-4783 128 2 10 10 NUM ajst-4783 128 3 ] ] X ajst-4783 128 4 nguyen nguyen PROPN ajst-4783 128 5 hh hh PROPN ajst-4783 128 6 . . PROPN ajst-4783 128 7 privacy privacy NOUN ajst-4783 128 8 - - PUNCT ajst-4783 128 9 preserving preserve VERB ajst-4783 128 10 mechanisms mechanism NOUN ajst-4783 128 11 for for ADP ajst-4783 128 12 kmodes kmode NOUN ajst-4783 128 13 clustering cluster VERB ajst-4783 128 14 [ [ X ajst-4783 128 15 j j X ajst-4783 128 16 ] ] X ajst-4783 128 17 . . PUNCT ajst-4783 129 1 computers computer NOUN ajst-4783 129 2 & & CCONJ ajst-4783 129 3 security security NOUN ajst-4783 129 4 , , PUNCT ajst-4783 129 5 2018 2018 NUM ajst-4783 129 6 , , PUNCT ajst-4783 129 7 78 78 NUM ajst-4783 129 8 : : SYM ajst-4783 129 9 60 60 NUM ajst-4783 129 10 - - SYM ajst-4783 129 11 75 75 NUM ajst-4783 129 12 . . PUNCT ajst-4783 130 1 [ [ X ajst-4783 130 2 3]braunhoferm 3]braunhoferm NUM ajst-4783 130 3 , , PUNCT ajst-4783 130 4 ricci ricci PROPN ajst-4783 130 5 f f PROPN ajst-4783 130 6 , , PUNCT ajst-4783 130 7 lamcheb lamcheb NOUN ajst-4783 130 8 , , PUNCT ajst-4783 130 9 etal etal NOUN ajst-4783 130 10 . . PUNCT ajst-4783 131 1 a a DET ajst-4783 131 2 contextaware contextaware NOUN ajst-4783 131 3 model model NOUN ajst-4783 131 4 for for ADP ajst-4783 131 5 proactive proactive ADJ ajst-4783 131 6 recommender recommender NOUN ajst-4783 131 7 systems system NOUN ajst-4783 131 8 in in ADP ajst-4783 131 9 the the DET ajst-4783 131 10 tourism tourism NOUN ajst-4783 131 11 domain[c]// domain[c]// ADJ ajst-4783 131 12 proceedings proceeding NOUN ajst-4783 131 13 of of ADP ajst-4783 131 14 the the DET ajst-4783 131 15 17th 17th ADJ ajst-4783 131 16 intemational intemational ADJ ajst-4783 131 17 conference conference NOUN ajst-4783 131 18 46 46 NUM ajst-4783 131 19 on on ADP ajst-4783 131 20 human human ADJ ajst-4783 131 21 - - PUNCT ajst-4783 131 22 computer computer NOUN ajst-4783 131 23 interaction interaction NOUN ajst-4783 131 24 with with ADP ajst-4783 131 25 mobile mobile ADJ ajst-4783 131 26 devices device NOUN ajst-4783 131 27 and and CCONJ ajst-4783 131 28 services service NOUN ajst-4783 131 29 adjunct.new adjunct.new PROPN ajst-4783 131 30 york york PROPN ajst-4783 131 31 : : PUNCT ajst-4783 131 32 acm acm PROPN ajst-4783 131 33 , , PUNCT ajst-4783 131 34 2015 2015 NUM ajst-4783 131 35 : : PUNCT ajst-4783 131 36 10701075 10701075 NUM ajst-4783 131 37 . . PUNCT ajst-4783 132 1 [ [ X ajst-4783 132 2 11 11 NUM ajst-4783 132 3 ] ] SYM ajst-4783 132 4 arasey，xiex arasey，xiex PROPN ajst-4783 132 5 , , PUNCT ajst-4783 132 6 harat harat NOUN ajst-4783 132 7 , , PUNCT ajst-4783 132 8 etal etal NOUN ajst-4783 132 9 . . PUNCT ajst-4783 133 1 mining mining NOUN ajst-4783 133 2 people people NOUN ajst-4783 133 3 's 's PART ajst-4783 133 4 trips trip NOUN ajst-4783 133 5 from from ADP ajst-4783 133 6 large large ADJ ajst-4783 133 7 scale scale NOUN ajst-4783 133 8 geotagged geotagge VERB ajst-4783 133 9 photos photo NOUN ajst-4783 133 10 [ [ PUNCT ajst-4783 133 11 c]// c]// ADJ ajst-4783 133 12 proceedings proceeding NOUN ajst-4783 133 13 of of ADP ajst-4783 133 14 the the DET ajst-4783 133 15 18th 18th ADJ ajst-4783 133 16 acm acm PROPN ajst-4783 133 17 international international ADJ ajst-4783 133 18 conference conference NOUN ajst-4783 133 19 on on ADP ajst-4783 133 20 multimedia multimedia NOUN ajst-4783 133 21 . . PUNCT ajst-4783 134 1 new new PROPN ajst-4783 134 2 york york PROPN ajst-4783 134 3 : : PUNCT ajst-4783 134 4 acm acm PROPN ajst-4783 134 5 , , PUNCT ajst-4783 134 6 2010 2010 NUM ajst-4783 134 7 . . PUNCT ajst-4783 135 1 [ [ X ajst-4783 135 2 12 12 NUM ajst-4783 135 3 ] ] PUNCT ajst-4783 135 4 braunhoferm braunhoferm NOUN ajst-4783 135 5 , , PUNCT ajst-4783 135 6 riccif riccif VERB ajst-4783 135 7 , , PUNCT ajst-4783 135 8 lamche lamche PROPN ajst-4783 135 9 b b NOUN ajst-4783 135 10 , , PUNCT ajst-4783 135 11 etal etal NOUN ajst-4783 135 12 . . PUNCT ajst-4783 136 1 a a DET ajst-4783 136 2 contextaware contextaware NOUN ajst-4783 136 3 model model NOUN ajst-4783 136 4 for for ADP ajst-4783 136 5 proactive proactive ADJ ajst-4783 136 6 recommender recommender NOUN ajst-4783 136 7 systems system NOUN ajst-4783 136 8 in in ADP ajst-4783 136 9 the the DET ajst-4783 136 10 tourism tourism NOUN ajst-4783 136 11 domain[c]// domain[c]// ADJ ajst-4783 136 12 proceedings proceeding NOUN ajst-4783 136 13 of of ADP ajst-4783 136 14 the the DET ajst-4783 136 15 17th 17th ADJ ajst-4783 136 16 intemational intemational ADJ ajst-4783 136 17 conference conference NOUN ajst-4783 136 18 on on ADP ajst-4783 136 19 human human ADJ ajst-4783 136 20 - - PUNCT ajst-4783 136 21 computer computer NOUN ajst-4783 136 22 interaction interaction NOUN ajst-4783 136 23 with with ADP ajst-4783 136 24 mobile mobile ADJ ajst-4783 136 25 devices device NOUN ajst-4783 136 26 and and CCONJ ajst-4783 136 27 services service NOUN ajst-4783 136 28 adjunct.new adjunct.new PROPN ajst-4783 136 29 york york PROPN ajst-4783 136 30 : : PUNCT ajst-4783 136 31 acm acm PROPN ajst-4783 136 32 , , PUNCT ajst-4783 136 33 2015 2015 NUM ajst-4783 136 34 : : PUNCT ajst-4783 136 35 10701075 10701075 NUM ajst-4783 136 36 . . PUNCT ajst-4783 137 1 [ [ X ajst-4783 137 2 13 13 NUM ajst-4783 137 3 ] ] X ajst-4783 137 4 chenyy chenyy NOUN ajst-4783 137 5 , , PUNCT ajst-4783 137 6 chenga chenga NOUN ajst-4783 137 7 , , PUNCT ajst-4783 137 8 hsuwh hsuwh NOUN ajst-4783 137 9 . . PUNCT ajst-4783 138 1 travel travel NOUN ajst-4783 138 2 recommendation recommendation NOUN ajst-4783 138 3 by by ADP ajst-4783 138 4 mining mining NOUN ajst-4783 138 5 people people NOUN ajst-4783 138 6 attributes attribute VERB ajst-4783 138 7 and and CCONJ ajst-4783 138 8 travel travel NOUN ajst-4783 138 9 group group NOUN ajst-4783 138 10 types type NOUN ajst-4783 138 11 from from ADP ajst-4783 138 12 community community NOUN ajst-4783 138 13 contributed contribute VERB ajst-4783 138 14 photos photo NOUN ajst-4783 138 15 [ [ X ajst-4783 138 16 j j X ajst-4783 138 17 ] ] X ajst-4783 138 18 . . PUNCT ajst-4783 139 1 ieee ieee NOUN ajst-4783 139 2 transactions transaction NOUN ajst-4783 139 3 on on ADP ajst-4783 139 4 multimedia multimedia NOUN ajst-4783 139 5 , , PUNCT ajst-4783 139 6 2013 2013 NUM ajst-4783 139 7 , , PUNCT ajst-4783 139 8 15 15 NUM ajst-4783 139 9 [ [ SYM ajst-4783 139 10 14 14 NUM ajst-4783 139 11 ] ] X ajst-4783 139 12 kurashimat kurashimat ADJ ajst-4783 139 13 , , PUNCT ajst-4783 139 14 iwatat iwatat NOUN ajst-4783 139 15 , , PUNCT ajst-4783 139 16 irieg irieg NOUN ajst-4783 139 17 , , PUNCT ajst-4783 139 18 etal etal NOUN ajst-4783 139 19 . . PUNCT ajst-4783 140 1 travel travel NOUN ajst-4783 140 2 route route NOUN ajst-4783 140 3 recommendation recommendation NOUN ajst-4783 140 4 using use VERB ajst-4783 140 5 geotagged geotagge VERB ajst-4783 140 6 photos photo NOUN ajst-4783 141 1 [ [ X ajst-4783 141 2 j j X ajst-4783 141 3 ] ] X ajst-4783 141 4 . . PUNCT ajst-4783 142 1 knowledge knowledge NOUN ajst-4783 142 2 and and CCONJ ajst-4783 142 3 information information NOUN ajst-4783 142 4 systems system NOUN ajst-4783 142 5 , , PUNCT ajst-4783 142 6 2013 2013 NUM ajst-4783 142 7 , , PUNCT ajst-4783 142 8 37(1 37(1 NUM ajst-4783 142 9 ): ): PUNCT ajst-4783 142 10 37 37 NUM ajst-4783 142 11 -60 -60 PUNCT ajst-4783 142 12 . . PUNCT