Table 11.

Performance of bearing fault classifier for different numbers of augmented training samples (optimal number highlighted in bold).

Fake Data/Class	Accuracy
	Train (%)	Validation (%)	Test (%)
No fake	98.40	98.20	98
50	99.0	98.6	98.2
100	99.6	98.8	98.8
150	99.69	99.60	99.60
200	98.33	98.2	98
250	98.93	98	98
300	98.65	97.8	97.8
350	99.24	97.8	97.6
400	99.62	97.8	97.4
450	98.62	97.4	97.4
500	99.71	97.4	97.2