Table 4.

Comparison between the proposed method and some previous work for bearing fault diagnosis.

Reference	Feature Extraction	Classification Method	Classes Number	Average Accuracy (%)
Brkovic et al. [14]	Wavelet energy entropy	Quadratic Classifier	4	100
Li et al. [59]	MPE from LMD	SVM with Binary Tree	4	100
Zheng et al. [60]	FE from LCD	ANFIS	7	100
Yan et al. [61]	IED-PE from IVMD	KNN	8	98.38
[40]	Singular entropy from stationary wavelet	KELM	10	100
Mao et al. [62]	Fourier amplitude	Deep-ELM	10	100
Yan and Jia [63]	Multi-domain features with Laplace score	SVM with PSO	12	100
This work	DE and PE from stationary wavelet	KELM	12	100