Table 10.

Performance metrics for selected models.

Model	R2	RMSE	MSE	Approach
TIMES [16]	0.85		0.15	Expert system
TIMES (in this study)	0.54	0.62		Expert system
TEST [15]	0.626	0.594		Consenus model of 3 local approaches
TEST (in this study)	0.296	0.642		Consenus model of 3 local approaches
Alberga [21]	0.737	0.408		k-NN
Gadaleta [22]	0.59-0.651	0.541-0.585		Various
CATMOS	0.65	0.49		Consensus