Acc	Accuracy
AEE	Addditive Expert Ensemble
ANN	Artificial Neural Network
ARF	Adaptive Random Forest
CEM	Categorical Emotion Model
CNS	Central Nervous System
Db4	Wavelet Daubechies 4
DEAP	Database for Emotion Analysis using Physiological Signals
DL	Deep Learning
DS	Data stream
DT	Decision Tree
DEM	Dimensional Emotion Model
DWE	Dynamic Weighted Ensemble
EEG	electroencephalogram
FN	False Negative
FP	False Positive
GD	Gradient descent
HT	Hoeffding Tree
HAT	Hoeffding Adaptive Tree
KNN	K-Nearest Neighbors
LMS	Learning Management Systems
LR	Logistic Regression
ML	Machine learning
MLP	Multi-layer Perceptron
MOA	Massive Online Analysis
MOOC	Massive Online Open Courses
mr	Misclassification Rate
Pre	Precision
Rec	Recall
RECS	Real-time Emotion Classification System
SGD	Stochastic gradient descent
SSE	Sum of squared error
STD	Standard deviation
SVM	Support Vector Machine
TP	True Positive
TN	True Negative
VA	Valence-arousal
VAD	Valence-arousal-dominance
WT	Wavelet Transformation