Research on Intelligent Classification of Ultrasonic Phased Array Image of Welding Seam of Naval Gun Cradle

Table 3

Parameter setting of the sparse autoencoder.

Sparse autoencoder	Hidden layer nodes	30
	L2WeightRegularization	0.004
	SparsityRegularization	4
	SparsityProportion	0.15
	Activation function	Logsig