Predicting GPR Signals from Concrete Structures Using Artificial Intelligence-Based Method

Table 5

Details of the selected ANN model.

Parameter	Detailed information
Neuron in the input layer	4 (TEM, ARH, CLL, CRS)
Neuron in the output layer	1 (GRA)
Training method	Feed-forward backpropagation
Learning algorithm	trainlm (Levenberg–Marquardt)
Activation function	Sigmoid
Hidden layer	1
Neuron in the hidden layer	16