“…Selection of variables have been done, by example, in [28], where different models are compared for the sets of variables (roof area, overall height), (relative compactness, roof area, overall height), (relative compactness, surface area, wall area, roof area, overall height, glazing area) and the full dataset. In reference [18], the considered variables are (surface area, wall area, roof area, overall height, glazing area), while reference [35] uses (relative compactness, surface area, wall area, overall height, glazing area) to model the cooling problem.…”