TABLE 3.

10-fold CV results of variety with the number of features in Chi-Square and Random Forest.

Feature number	10-fold CV result of using the Chi-Square in feature selection	10-fold CV result of using Random Forest in feature selection
100	0.929750576	0.936357298
200	0.947377573	0.951911924
300	0.957487752	0.956577824
400	0.956709878	0.961505816
500	0.960339005	0.960726262
600	0.961894081	0.960854956
700	0.961894081	0.962541414
800	0.961890889	0.963838431
900	0.962538726	0.963707385
1,000	0.962278986	0.963448150

The bold values in each column are the optimal results for this method.