Acc	Accuracy
AES	Advanced Encryption Standard
AUC	Area Under the Curve
BC	BioCapsule
BN	Bayesian Networks
BPNN	Back Propagation Neural Network
CA	Continuous Authentication
CNN	Convolutional Neural Networks
CRR	Correct Recognition Rate
CV	Computer Vision
DCA	Discriminant Component Analysis
DT	Decision Tree
DoG	Difference-of-Gaussians
ECG	Electrocardiogram
EEG	Electroencephalogram
EER	Equal Error Rate
EF	Eigenfaces
ER	Error Rate
FAR	False Acceptance Rate
FF	Fischerfaces
FPE	Format-Preseving Encryption
FRR	False Rejection Rate
GMM	Gaussian Mixture Model
HAT	Hoeffding Adaptive Trees
HOG	Histogram of Oriented Gradients
HTER	Half Total Error Rates
HMM	Hidden Markov Model
KFA	Kernel-Fisher’s Analysis
KNN	K-Nearest Neighbor
KRR	Kernel Ridge Regression
LDA	Linear Discriminant Analysis
LMNN	Large Margin Nearest Neighbor
LR	Logistic Regression
LSTM	Long Short-Term Memory
MDR	Multiclass Discriminant Ration
ML	Machine Learning
MLP	Multi-Layer Perceptrons
MM	Markov Model
NB	Naive Bayes
NN	Neural Network
PCA	Principal Component Analysis
PPG	Photoplethysmogram
RBF	Radial Basis Function
RF	Random Forest
RP	Random Projection
SIFT	Scale-Invariant Feature Transform
SRC	Sparse Representation Classification
SVM	Support Vector Machine
TNR	True Negative Rate
TPR	True Positive Rate
UP	User Profiling