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

Table 2

The experimental results of different feature extraction methods for dataset A.

Feature extraction method	The experimental results
	Number of channels	Number of features	Test error rate (%)
Power spectrum	51	193	27.76
Time-domain statistic	57	203	28.64
AR coefficient	35	146	40.97
Wavelet coefficient	23	737	30.40
Fusion feature	18	737	29.26