AS	Application Server
CNN	Convolutional Neural Network
CPU	Central Processing Unit
DL	Deep Learning
DSS	Decision Support System
E-Eye	Electronic Eye
E-Nose	Elecgtronic Nose
E-Tongue	Elecntronic Tongue
LSTM	Long short-term memory RNN
ML	Machine Learning
MOS	Metal Oxide Semiconductor
NDIR	Non-Dispersive Infrared
NIR	Near Infrared Region of wavelength between 750 nm to 2500 nm
NN	Neural Networks
PPM	Parts Per Million
RNN	Recurrent Neural Networks
SVR	Support Vector Regression
V-LSTM	variable LSTM model
VM	Virtual Machines, cloud-hosted