Estimating Compressive Strength of High Performance Concrete with Gaussian Process Regression Model

Table 2

Prediction result comparison.

Model	Criteria	Training phase		Testing phase
		Average result	Standard deviation	Average result	Standard deviation
GPR	RMSE	4.06	1.29	4.04	0.47
	MAPE	5.02	1.86	5.14	0.89
		0.90	0.07	0.90	0.05
LSSVM	RMSE	4.46	0.58	4.63	0.62
	MAPE	5.67	0.92	5.94	0.86
	R^2	0.89	0.02	0.87	0.05
ANN	RMSE	5.07	0.87	5.21	1.85
	MAPE	6.56	1.23	6.34	2.32
		0.85	0.14	0.81	0.15