ANN	Artificial Neural Network
CAN	Controlled Area Network
cc	cubic centimeters
CNN	Convolutional Neural Network
CO2	Carbon Dioxide
CPU	Central Processing Unit
CUDA	Compute Unified Device Architecture
ECU	Electronic Control Unit
GBR	Gradient Boosting Regression
GPS	Global Positioning System
GPU	Graphics Processing Unit
HV(s)	Hybrid Vehicle(s)
ICE	Internal Combustion Engine
IoT	Internet of Things
LR	Linear Regression
LSTM	Long Short-Term Memory
MAE	Mean Absolute Error
ML	Machine Learning
MLP	Multi Layer Perceptron
MPH	Miles per Hour
MSE	Mean Square Error
NDIR	Non Dispersive Infra Red
NOx	Nitrogen Oxide
PEMS	Portable Emissions Monitoring System
ppm	parts per million
psi	pounds per square inch
RF	Random Forest
RMSE	Root Mean Square Error
RNN	Recurrent Neural Network
RPM	Revolutions per Minute
SOC	State of Charge
SVR	Support Vector Regression
TOPS	Tera Operations per Second
UDS	Unified Diagnostic Services
W	Watts
WLTP	Worldwide Harmonised Light Vehicle Test Procedure
XGBR	Xtreme Gradient Boosting Regression