Reduce Surface Electromyography Channels for Gesture Recognition by Multitask Sparse Representation and Minimum Redundancy Maximum Relevance

Table 5

Channels used by each feature.

Feature	Channels by MTSR	Selected	Channels by mRMR	Selected
WL	②③④⑥⑧	√	①②③④⑤⑥⑦⑧	√
IAV	③④⑦		①②③④⑤⑥⑦⑧	√
RMS	①⑤		–
SSI	⑧		①③⑤⑥⑧	√
Kurtosis	⑤⑧		①②③④⑤⑦⑧	√
Skewness	②⑥⑦⑧		②⑧
ZC	–		–
AR1	①②③④⑤⑦⑧	√	⑧
AR2	①②③⑤⑦⑧	√	⑧
AR3	②③⑤		①⑤⑥⑦
AR4	①④⑤		–