AME	adaptive MSE
ApEN	approximate entropy
AR	autoregressive
ARFIMA	autoregressive fractionnaly integrated moving average
ARMA	autoregressive with moving average
CFIT	controlled flight into terrain
CG	coarse-graining
CMSE	composite MSE
COSEn	coefficient of the sample entropy
dfBm	discrete fractional Brownian motion
dfGn	discrete fractional Gaussian noise
DE	dispersion entropy
EMD	empirical mode decomposition
ECG	electrocardiogram
EEG	electroencephalogram
ER	Eckmann–Ruelle
FI	fractionally integrated
FIR	finite impulse response
FuzEn	fuzzy entropy
HE	hierarchical Entropy
IIR	infinite impulse response
IMEn	intrinsic mode entropy
IMFs	intrinsic mode functions
IMPE	improved multiscale PE
KS	Kolmogorov–Sinai
LZ	Lempel–Ziv
MEMD	multivariate EMD
MFE	multiscale fuzzy sample entropy
MFPE	multiscale fractional-order PE
MGMSE	multivariate generalized MSE
MGrcMSE	multivariate generalized rcMSE
MMSE	modified MSE
MrcMSE	multivariate
MSampEn	multivariate sample entropy
MSE	multiscale entropy
MSSE	multiscale symbolic entropy analysis
mv	multivariate
mvMPE	mv multiscale PE
PE	permutation entropy
PSD	power spectral density
rcMFE	refined composite multiscale fuzzy entropy
rcMPE	refined composite multiscale permutation entropy
rcMSE	refined composite MSE
rMSE	refined MSE
SE	sample entropy
SV	singular value
SVD	singular value decomposition
TSMBE	time shift multiscale bubble entropy
WPE	weighted permutation entropy
WMFPE	weighted multiscale fractional-order PE