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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Artif Intell Med. 2021 May 7;117:102096. doi: 10.1016/j.artmed.2021.102096

Table 7.

Internal index results for k=5.

100 iterations
500 iterations
1,000 iterations
CH SC CH SC CH SC

LSI 50,641 0.40 51,961 0.40 51,961 0.40
BTM 165,515 0.60 171,041 0.60 175,937 0.61
LDA 69,526 0.37 71,240 0.38 71,741 0.38
GibbsLDA 967,683 0.91 1,016,640 0.93 1,010,773 0.92
Online LDA 173,255 0.61 170,659 0.60 185,005 0.62
Online Twitter LDA 6,554,339 0.98 10,117,270 0.98 10,989,530 0.99
GSDMM 2,208,731 0.91 2,660,268 0.92 2,302,045 0.91

k-means+Doc2Vec 13,998 0.04 13,998 0.04 13,998 0.04
k-means+TF-IDF 4,722 0.07 4,722 0.07 4,722 0.07