The Fault Diagnosis of Rolling Bearing Based on Variational Mode Decomposition and Iterative Random Forest

Table 5

Summary of cross-validation results for each classification method.

Model	Cross-validation fold
	2 folds	4 folds	6 folds	8 folds	10 folds
EMD-C5.0	0.1449	0.1064	0.1040	0.1014	0.0966
EMD-SVM	0.0827	0.0827	0.0827	0.0827	0.0827
EMD-RF	0.0687	0.0686	0.0681	0.0683	0.0685
EMD-iRF	0.0573	0.0385	0.0390	0.0329	0.0315
EEMD-C5.0	0.1256	0.0921	0.0882	0.0866	0.0839
EEMD-SVM	0.0877	0.0877	0.0877	0.0877	0.0877
EEMD-RF	0.0616	0.0615	0.0606	0.0615	0.0611
EEMD-iRF	0.0497	0.0326	0.0302	0.0297	0.0288
VMD-C5.0	0.0490	0.0407	0.0357	0.0342	0.0319
VMD-SVM	0.0130	0.0130	0.0130	0.0130	0.0130
VMD-RF	0.0101	0.0097	0.0095	0.0092	0.0095
VMD-iRF	0.0150	0.0107	0.0085	0.0071	0.0069