Prediction of Splitting Tensile Strength from Cylinder Compressive Strength of Concrete by Support Vector Machine

Table 6

Error measurement for 𝑓_spt from 150 × 300 mm cylinder 𝑓_𝑐.

	GEP-I [9]	ACI 363R	ACI 318	CEB-FIP	Regression [9]	RBF	Polynomial
RMSE of training set	0.4603	0.5995	0.5228	0.5027	0.4512	0.4978	0.4819
RMSE of testing set	0.4271	0.2735	0.3152	0.3754	0.2874	0.2748	0.4176
MAPE of training set	9.7554	13.647	11.4913	10.6213	9.5596	10.2434	10.5454
MAPE of testing set	7.3022	4.6139	5.5434	6.2059	5.286	4.987	6.9517
𝑅^2 of training set	0.8282	0.8225	0.8224	0.8267	0.826	0.8115	0.8227
𝑅^2 of testing set	0.9416	0.9486	0.9486	0.9471	0.9476	0.9422	0.9327