Intelligent Roller Bearing Fault Diagnosis in Industrial Internet of Things

Table 7

Total average correlation values of each BL-IMF with VMD.

Mode	Mode	BL-IMF1	BL-IMF2	BL-IMF3	BL-IMF4
VMD (k = 4)	NR	0.6152	0.4463	0.4940	0.5384
	IRF	0.2275	0.3718	0.5773	0.7702
	BF	0.3849	0.4141	0.4943	0.7376
	ORF	0.4201	0.5187	0.7421	0.2708