Bearing Fault Diagnosis Method Based on Multidomain Heterogeneous Information Entropy Fusion and Model Self-Optimisation

Table 5

Initial setting of CEI-SSA parameters.

Parameter	Scope
Population	20
Dimension	19
Iterations	6
Optimiser	“Adam”, “SGD”, “Adamx”, “Adadelta”, “Adagrad”, “AdamW”, “ASGD”, “RMSprop”
Learning rate	[1e − 5, 1e − 1]
Batch size	[16, 64]
Activation function	“Relu”, “Sigmoid”, “Relu6”, “Tanh”, “LRelu”, “Softsign”
Channel number	[3, 15], [16, 30], [31, 45], [46, 60]
Kernel size	[2, 3, 3, 5, 6, 6, 7, 11]
Pooling form	“Maxpool”, “Avgpool”
Hidden unit in LSTM	[20, 80]