KPCA and AE Based Local-Global Feature Extraction Method for Vibration Signals of Rotating Machinery

Table 3

Learning rate setting schemes.

	No.	Initial learning rate	Learning rate	Patience	Epoch
Fixed learning rate	1	—	1e − 1	—	1000
	2	—	1e − 2	—	1000
	3	—	1e − 3	—	1000
	4	—	1e − 4	—	1000
Decreasing learning rate	5	1e − 2	—	10	1000
	6	1e − 2	—	30	1000
	7	1e − 2	—	50	1000
	8	1e − 2	—	100	1000
	9	1e − 2	—	200	1000
	10	1e − 2	—	300	1000