Rolling Bearing Fault Diagnosis Based on Domain Adaptation and Preferred Feature Selection under Variable Working Conditions

Table 4

Fault diagnosis models.

Number	The first group experimental models		The second group experimental models
	The PSFFC is not applied		The PSFFC is applied
	SVM-based	KNN-based	SVM-based	KNN-based
1	RFS-SVM	RFS-KNN	RFS-PSFFC-SVM	RFS-PSFFC-KNN
2	RFS-LFDA-SVM	RFS-LFDA-KNN	RFS-PSFFC-LFDA-SVM	RFS-PSFFC-LFDA-KNN
3	RFS-TCA-SVM	RFS-TCA-KNN	RFS-PSFFC-TCA-SVM	RFS-PSFFC-TCA-KNN
4	RFS-TCAPLMS-SVM	RFS-TCAPLMS-KNN	RFS-PSFFC-TCAPLMS-SVM	RFS-PSFFC-TCAPLMS-KNN