Table 2.

Results of Amazon_6 in two classes for 4000 texts by support vector machine (SVM).

Model	Accuracy and F1 of Different Dimensions
	200		300		500		800
	Acc	F1	Acc	F1	Acc	F1	Acc	F1
FW	0.89	0.8888	0.9038	0.9030	0.9218	0.9196	0.914	0.9168
P2	0.6845	0.6831	0.6853	0.6839	0.6853	0.6838	0.6853	0.6837
PW	0.959	0.9589	0.96	0.96	0.9595	0.9594	0.9605	0.9604
FP2	0.91	0.9003	0.9105	0.9099	0.9285	0.9282	0.9218	0.9218
FPW	0.971	0.971	0.972	0.9719	0.9743	0.9737	0.972	0.9737
FPC	0.967	0.968	0.9685	0.9687	0.9705	0.9717	0.9715	0.9732
Accuracy and F1 of Baselines
Model	Acc				F1
TF–IDF	0.955				0.9607
LDA	0.9488				0.9487
Word2Vec	0.9587				0.967