LFC	lightweight foamed concrete
SVM	support vector machine
ML	machine learning
AI	artificial intelligence
RF	random forest
R2	coefficient of determinant
MAE	mean absolute error
GHG	greenhouse gases
CO2	carbon dioxide
DT	decision tree
DL	deep learning
ANN	artificial neural network
r	Pearson correlation
SVR	support vector regression
CS	compressive strength
RMSE	root mean square error