Remaining Useful Life Prediction and Fault Diagnosis of Rolling Bearings Based on Short-Time Fourier Transform and Convolutional Neural Network

Table 4

Diagnostic accuracy of multiple tests.

Method	Accuracy in different testing times (%)					Average accuracy (%)
	1	2	3	4	5
BPNN	83.32	80.58	82.62	83.30	83.25	82.61
PSO-BP	83.35	85.67	87.32	86.54	86.70	85.92
GA-BP	86.53	88.24	87.34	87.50	85.42	87.01
STFT-CNN	95.83	97.30	94.78	97.65	96.25	96.36