id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ertr-538	Kirilenko, Andrei P.; Stepchenkova, Svetlana	Automated Topic Modeling of Negative Tourist Reviews	2019	14	.pdf	application/pdf	4499	180	43	In travel review analysis, LDA has been applied to datasets of radically different sizes, ranging from as few as 50 (Putri & Kusumaningrum 2017) to over 250,000 (Guo, Barnes, & Jia, 2017) reviews. Two indices were used to compare performance of LDA topic models: perplexity and coherence.	cache/ertr-538.pdf	txt/ertr-538.txt