Optimum Design of Fully Composite, Unstiffened, Built-Up, Hybrid Steel Girder Using GRG, NLR, and ANN Techniques

Table 4

Accuracies of developed models.

	NLR		ANN
	Error %	R^2	Error %	R^2
Hs	8.8	0.966	6.7	0.979
Asc	27.4	0.941	16.0	0.982
Asw	19.1	0.950	12.2	0.980
Ast	18.1	0.950	11.9	0.977
ts	5.6	0.991	7.0	0.974