Rolling Bearing Fault Diagnostic Method Based on VMD-AR Model and Random Forest Classifier

Table 6

The performance for fault severity level problem using different classifiers under 4 modes.

Number of training samples	Number of testing samples	Total accuracy (%)				Cost time (s)
		RF	SVM	GA-SVM	PSO-SVM	RF	SVM	GA-SVM	PSO-SVM
80	320	96.81	81.97	95.47	95.69	0.0859	0.0093	2.06	4.041
160	240	98.58	86.96	97.29	96.58	0.1377	0.0103	4.79	9.640
240	160	98.50	89.13	98.06	96.81	0.1822	0.0115	7.77	18.04
320	80	98.63	91.00	98.38	97.63	0.2356	0.0119	11.53	28.34