Table 2.

Classification results of reduced features.

Reduced features	Accuracy	Sensitivity	Specificity	MCC	Feature number	Feature reduction ratio
OE	0.9214	0.8993	0.9329	0.8191	94	0.4125
PCA	0.9110	0.9044	0.9178	0.7992	91	0.4013
NLF	0.9110	0.8775	0.9306	0.7934	74	0.4861
Combination fusion	0.9199	0.8977	0.9299	0.8161	259	0.4320
Decision fusion	0.9355	0.9211	0.9442	0.8518