Table 1.

Conventional classification methods for motor imagery classification

Methods	Features	Classifiers	Datasets
Qin et al. (2004) [17]	Time-frequency	Source analysis	BCI competition II
Schlogl et al. (2005) [15]	AAR	kNN/LDA/SVM	BCI competiti on III
Herman et al. (2008) [22]	PSD	LDA/RFD/SVM	Graz University dataset
Blankertz et al. (2007) [21]	CSP	LDA	Graz University dataset
Ang et al. (2012) [8]	FB-CSP	PW Naive Bayes	BCI competition IV
Park et al. (2013) [25]	MEMD+CSP	SVM	BCI competition IV
Yuksel and Olmez (2015) [24]	SFN	BPNN	BCI competition III
Wu et al. (2015) [32]	P-CSP	FLDA	Paper’s private data
Kumar et al. (2018) [33]	Enhanced CSP	GA and SVM	BCI competition III and IV