Estimation of Costs and Durations of Construction of Urban Roads Using ANN and SVM

Table 6

Activation functions of MLP ANN models.

Function	Expression	Explanation	Range
Identity		Activation of neurons is directly forwarded as output
Logistic sigmoid		“S” curve
Hyperbolic tangent		Sigmoid curve similar to logistic function, but featuring better performances because of the symmetry it has. Ideal for MLP ANN models, especially for hidden neurons