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

Table 7

Performances indices for GRNN.

Performance index	Number of neuron	R^2 train (%)	R^2 test (%)	MSE train	MSE test	RMSE train	RMSE test	MAE train	MAE test
Minimize error	107	87.87	75.32	0.0103	0.0475	0.1108	0.2219	0.0651	0.1421
Minimize number of neurons	34	85.84	48.70	0.0172	0.0716	0.1311	0.2676	0.0984	0.1785
Number of neurons	10	64.82	41.07	0.0427	0.0823	0.2067	0.2868	0.1471	0.2164