Rolling Bearing Fault Diagnosis Using Modified Neighborhood Preserving Embedding and Maximal Overlap Discrete Wavelet Packet Transform with Sensitive Features Selection

Table 4

Bearing fault diagnosis results obtained by OFS-PCA-SVM.

Dimension size	MODWPT		WPT
	Case  1 testing accuracy (%)	Case  2 testing accuracy (%)	Case  1 testing accuracy (%)	Case  2 testing accuracy (%)
5	94.79	72.08	93.54	82.92
10	98.75	81.45	93.54	73.96
15	98.33	84.58	93.54	77.50
20	99.17	84.79	95.63	78.13
30	99.37	85.00	96.87	77.71