Simultaneous Channel and Feature Selection of Fused EEG Features Based on Sparse Group Lasso

Table 3

Experimental results comparing different feature extraction methods for dataset E.

Feature extraction method	Experimental results
	Number of channels	Number of features	Test error rate (%)
Power spectrum	40	93	14.85
Time-domain statistic	33	91	16.16
AR coefficient	28	102	17.47
Wavelet feature	25	430	19.65
Fusion feature	23	508	15.28