Table 4.

Accuracy, Number of Iteration at Maximum Accuracy, and Total Iteration Number at each Feature Selection Method and ROI Size

Parameter			SFS	SBS	PTA(3,2)	SFFS	SFBS
ROI	16	Accuracy	85.0	83.2	84.6
		Iteration num at Max	5	51	17
		Total iteration	55	54	265
	32	Accuracy	80.5		84.0
		Iteration num at Max	5		30
		Total iteration	55		265
	64	Accuracy	81.7	84.9	85.7	85.8	82.9
		Iteration num at Max	21	46	39	36	123
		Total iteration	55	54	265	113	150

SFS Sequential forward selection, SBS sequential backward selection, PTA(l,r) plus l-take away r, SFFS sequential floating forward selection, SFBS sequential floating backward selection

All study was performed using the SVM classifier.