An Explainable Probabilistic Model for Health Monitoring of Concrete Dam via Optimized Sparse Bayesian Learning and Sensitivity Analysis

Table 3

Error metrics of point prediction results obtained from different models.

Model	CB2			CB3			Seepage
	r	NRMSE	MAE	r	NRMSE	MAE	r	NRMSE	MAE
OSBL	0.968	0.069	1.602	0.973	0.066	0.341	0.574	0.178	3.303
KELM	0.925	0.095	2.145	0.946	0.086	0.389	0.463	0.193	3.424
RBFNN	0.954	0.098	2.311	0.973	0.075	0.380	0.569	0.179	3.390
GPR	0.944	0.083	1.920	0.945	0.087	0.440	0.432	0.202	3.445

Note: the best values are marked in boldface.