Prediction of Ultimate Bearing Capacity of Cohesionless Soils Using Soft Computing Techniques

Table 4

Performance evaluation of different models for testing dataset.

Performance index	Meyerhof [2]	Hansen [3]	Vesic [4]	ANN [5]	FIS [5]	SVM*		GP*
						Polykernel; (C = 100; d = 2)	RBF Kernel; (C = 250; σ = 3)
R	0.9410	0.9366	0.9456	0.9951	0.9899	0.9775	0.9806	0.9972
E	0.7863	0.7583	0.7321	0.9942	0.9858	0.9541	0.9504	0.9965
RMSE (kPa)	269.947	287.099	302.269	62.620	98.002	125.087	130.102	44.967
MBE (kPa)	−127.724	−139.611	−158.552	−21.89	13.92	34.11	4.75	4.019
MARE	22.0679	20.0152	28.515	13.314	19.456	14.7278	9.4528	7.6817

∗Present study.