Coping with Complexity When Predicting Surface Roughness in Milling Processes: Hybrid Incremental Model with Optimal Parametrization

Table 5

Comparative study of the three models (ANN, BN, HIM + SA).

Performance index/approach	BN	ANN	HIM + SA
NPM (%)	96.35	94.84	98.88
NPR (%)	3.65	5.16	1.12
MAE	0.03	0.04	0.0032
RMSE	3.65	5.16	0.0227
RAE (%)	10.41	13.05	2.68
RRSE (%)	32.66	33.70	4.77