Prediction of Skid Resistance Value of Glass Fiber-Reinforced Tiling Materials

Table 4

Performance indices (R², RMSE, MAE, and VAF) of the ANN and MR models.

Model	Data	R^2 (%)	RMSE	MAE	VAF
ANN-1	Training set	86.91	1.82	1.29	84.21
	Testing set	84.31	1.25	1.56	85.84
ANN-2	Training set	88.92	0.92	1.21	84.21
	Testing set	90.39	1.05	0.96	85.84
MR	All data	65.34	2.37	1.59	53.45