Table 3.

Evaluation of statistical parameters of ANN model.

Method	Evaluation Index
	Training set		Test set		All set
	MSE	R2	MSE	R2	MSE	R2
LBS Eq. (1)	781.956	− 2.557	1170.375	− 4.085	803.784	− 2.534
LBS Eq. (6)	22.747	0.897	44.129	0.808	24.205	0.894
LBS Eq. (20)	5.324	0.976	4.645	0.980	5.322	0.977
ANN	3.453	0.984	6.327	0.973	3.668	0.984