A New Feature Selection Method for Text Classification Based on Independent Feature Space Search

Table 10

Two-tailed Wilcoxon signed ranks test results by using NB and SVM.

Method	NB						SVM
	PU1	PU2	PU3	PUA	CS	ES	PU1	PU2	PU3	PUA	CS	ES
CHI	0.005	0.005	0.005	0.005	0.005	0.508	0.005	0.005	0.017	0.005	0.017	0.028
IG	0.005	0.005	0.005	0.005	0.005	0.185	0.005	0.005	0.011	0.005	0.012	0.027
TFIG	0.085	0.005	0.005	0.005	0.007	0.005	0.005	0.005	0.011	0.005	0.008	0.074
TTFS	0.005	0.005	0.005	0.005	0.113	0.005	0.005	0.005	0.005	0.005	0.005	0.005
IMTFIDF	0.412	0.005	0.012	0.005	0.007	0.005	0.005	0.011	0.023	0.021	0.005	0.005
GININTF	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.005	0.012	0.005