6G	Sixth Generation (of wireless communication)
IoT	Internet of Things
CNN	Convolutional Neural Network
MSE	Mean Squared Error
CO	Carbon Monoxide
QoS	Quality of Service
MOX	Metal Oxide
AI	Artificial Intelligence
DCNN	Deep Convolutional Neural Network
2D	Two Dimensional
ace	Acetone
car	Carbon Tetrachloride
emk	Ethyl Methyl Ketone
xyl	Xylene
CdS	Cadmium Sulfide
MoO	Molybdenum Oxide
SnO2	Tin Oxide
ZnO	Zinc Oxide
ANN	Artificial Neural Network
SGD	Stochastic Gradient Descent
VGS	Virtual Gas Sensor
QNT_MSE	Quantification-Mean Squared Error