Application of Artificial Neural Network(s) in Predicting Formwork Labour Productivity

Table 5

Performance indices for models with two hidden layers.

Neurons	5	10	15	20	25	30	35	40	45	50	60
MSE	0.0162	0.0096	0.1264	0.0215	0.0545	0.0384	0.0212	0.1264	0.0183	0.0184	0.0096
MSE train	0.0055	0.0022	0.1242	0.0200	0.0008	0.0000	0.0000	0.1267	0.0005	0.0008	0.0007
MSE test	0.0665	0.0446	0.1369	0.0230	0.1071	0.1193	0.1213	0.1251	0.1024	0.1010	0.0518
R^2	0.935	0.942	0.499	0.949	0.813	0.872	0.929	0.512	0.927	0.932	0.962
R^2 train	0.979	0.981	0.522	0.976	0.997	1	1	0.537	0.998	0.997	0.997
R^2 test	0.693	0.693	0.403	0.832	0.335	0.482	0.733	0.395	0.714	0.694	0.785