Neural Network-Based Model for Predicting Preliminary Construction Cost as Part of Cost Predicting System

Table 4

Comparison of the accuracy among GRNN, MLP NN, and RBF NN (results for validation data).

Predictive model	MAPE%	R^2	R
GRNN	0, 73	99, 55	0, 998
MLP NN	0, 97	98, 99	0, 995
RBF NN	0, 96	98, 97	0, 995