Acc	Accuracy
AF	Atrial Fibrillation
ANN	Artificial Neural Network
AI	Artificial Intelligence
DL	Deep Learning
CNN	Convolutional Neural Network
CWT	Continuous Wavelet Transform
DBN	Deep Belief Network
DCT	Discrete Cosine Transform
DFT	Discrete Fourier Transform
DL	Deep Learning
DNN	Deep Neural Network
DT	Decision Tree
DWT	Discrete Wavelet Transform
ECG	Electrocardiogram
EMD	Empirical Mode Decomposition
FD	Fractal Dimension
FT	Fourier Transform
HOS	Higher Order Spectra
HR	Heart Rate
ICA	Independent Component Analysis
IoT	Internet of Things
K-NN	K-Nearest Neighbor
LDA	Linear Discriminant Analysis
LLE	Largest Lyapunov Exponent
LMNN	Levenberg–Marquardt Neural Network
LSTM	Long Short-Term Memory
ML	Machine Learning
NB	Naive Bayes
NSR	Normal Sinus Rhythm
PCA	Principal Component Analysis
PNN	Probabilistic Neural Network
PPG	Photoplethysmogram
PSD	Power Spectral Density
RF	Random Forest
RNN	Recurrent Neural Network
RQA	Recurrence Quantification Analysis
SWT	Stationary Wavelet Transform
Sen	Sensitivity
Spe	Specificity
STFT	Short-Time Fourier Transform
SWT	Stationary Wavelet Transform
SVM	Support Vector Machine
TVCF	Time-Varying Coherence Function
WHO	World Health Organization
WPD	Wavelet Packet Decomposition