An Enhanced Gated Recurrent Unit-Based Adaptive Fault Diagnosis of Rotating Machinery

Table 4

Average accuracy and standard deviation of each condition.

Condition	k	Inputs	Average accuracy (%)	Standard deviation
1	0	Collected signals	96.69	1.47
2	0.2	Noisy signals	82.46	2.45
3		Denoised signals	92.39	1.17
4	0.4	Noisy signals	79.57	2.57
5		Denoised signals	95.03	1.10
6	0.6	Noisy signals	74.15	2.93
7		Denoised signals	91.93	1.10
8	0.8	Noisy signals	67.80	6.31
9		Denoised signals	90.36	1.25