A Gamma-Poisson Mixture Topic Model for Short Text

Table 4

Average topic coherence scores (and standard deviation).

Dataset	Starting value of
	50	100	200	400	800
Tweet	−25.02 (0.91)	−23.76 (1.65)	−19.92 (1.47)	−18.89 (0.06)	−18.13 (0.58)
Pascal flickr	−37.01 (4.16)	−34.50 (2.06)	−33.85 (2.92)	−30.39 (2.59)	−31.53 (1.78)
Search snippets	−50.56 (1.85)	−50.17 (2.06)	−50.71 (2.26)	−49.47 (4.15)	−51.19 (1.81)