EEG	Electroencephalogram
MI	Motor imagery
TF	Time-frequency
FFT	Fast Fourier transform
R-CSP	Regularized common spatial patterns
FRCSP	Filtered regularized CSP
PSO	Particle swarm optimization
LS-SVM	support vector machine with least square
M-CC	Modified cross-correlation
OA	Optimal allocation
PLV	Phase lock value
NB	Naive Bayes
WT	Wavelet transform
EMD	Empirical mode decomposition
DWT	Discrete WT
RDWT	Rational dilation WT
TQWT	Tunable Q WT
CNN	convolutional neural networks
WPD	wavelet packet decomposition
MSPCA	multiscale principal component analysis
r-TQWT	Robust Tunable Q Wavelet Transform
SB	Subbands
LPS	lowpass subbands
HPS	High pass subbands
EOA	evolutionary optimization algorithms
SOTA	state-of-the-art techniques
ABC	Artificial Bee Colony
CS	Cuckoo search