PD	Parkinson’s disease
FoG	Freezing of gait
NA	Not Available
MRI	Magnetic Resonance Imaging
PET	Positron emission tomography
CT	Computerized tomography
EEG	Electroencephalogram
EMG	Electromyography
VGRF	Vertical Ground Reaction Force
CNN	Convolutional Neural Network
RNN	Recurrent Neural Network
ANN	Artificial Neural Network
FNN	Fuzzy Neural Network
NN	Neural Network
DBN	Deep belief network
MOGA	Multi-Objective Genetic Algorithm
BiLSTM	Bidirectional Long short-term memory
LSTM	Long short-term memory
OPF	Optimum-Path Forest
FRP	Fuzzy Recurrence Plot
DCNN	Deep Convolutional Neural Network
FCNN	Fully Connected-Neural Network
DNN	Deep Neural Network
EFMMOneR	Fuzzy Minmax Neural Network with The One R Attribute Evaluator
LRNN	Layer Recurrent Neural Network
MTL	Multi-Task Learning
GCN	Graph Convolutional Network
GS-RNN	Gradient Stabilized Recurrent Neural Network
NR-LBP	Neighborhood Representation Local Binary Pattern
TCN	Temporal Convolutional Neural network
WGAN	Wasserstein Generative Adversarial Networks
SAE	Stacked Auto Encoder
SSAE	Stacked Sparse Auto-Encoder
LSVRC	Large Scale Visual Recognition Challenge
DNMLDM	Deep Neural Mapping Large Margin Distribution Machine
MLP	Multiple Layer Perceptron
SVM	Support Vector Machine
SSM-PCA	Scaled Subprofile Modeling Using Principal Component Analysis
SNN	Siamese Neural Network
FCV	Fold-Cross Validation
LOOCV	Leave-One-Out Cross-Validation
LOSO	Leave One Subject Out
AUC	Area Under Curve