Porosity Characterization of Thermal Barrier Coatings by Ultrasound with Genetic Algorithm Backpropagation Neural Network

Table 4

The configuration parameters of the GA-BPNN model.

Name	Parameters	Value
BPNN	Learning rate	0.0015
	Training goal	0.0001
	Epoch	1000
	Training function	Trainlm
	Transfer function	Sigmoid
GA	Cycle index	10000
	Maxgen	60
	Selectivity factor	1.0
	Crossover factor	0.3
	Mutation factor	0.1