Early Fault Detection Method of Rolling Bearing Based on MCNN and GRU Network with an Attention Mechanism

Table 2

Model hyperparameters.

Hyperparameters	Value
Kernel number	8
Multiscale number	4
CNN layers	2
CNN optimizer	Adam
CNN activation function	ReLU
AGRU hidden layer	1
AGRU optimizer	Adam
AGRU activation function	Sigmoid
Gaussian kernel parameter	25