Research Article

Intelligent Roller Bearing Fault Diagnosis in Industrial Internet of Things

Table 2

Probabilities of undefined entropy.

Scale factorMSERCMMSE
White noise1/f noiseWhite noise1/f noise

1–30000
400.0100
500.01500
600.04500
700.1100
800.15500
900.27500
1000.3500
1100.3600
1200.482400
1300.494900
1400.560600
1500.537700
1600.571400
1700.705900
1800.721100
1900.640200
2000.666700