A Fault Diagnosis Method for One-Dimensional Vibration Signal Based on Multiresolution tlsDMD and Approximate Entropy

Table 9

Classification comparisons of CWRU database-adopted mode decomposition algorithm.

Ref.	Main features	Bearing states	Training samples	Testing samples	Test accuracy (%)
[65]	LMD, sample entropy, energy ratio + SVM	Four	60	20	100
[69]	LMD-SVD + BPNN/SVM/ELM	Ten	172	228	97.7, 98.8, 99.3
[68]	EMD sample entropy of first ten IMFs + ISFLA	Six	140	70	100 for health, others 95.4
[66]	Time and frequency, EMD energy entropy + ANFIS	Even	140	70	94.7
Proposed	mr-tlsDMD, ApEn + BPNN	Four	120	80	100