Table 1.

Parameters of the best ANN architectures obtained using the GA.

Parameters		ANN Architecture
		1	2	3
Neurons	1st layer	80	95	59
Transfer function	between input and 1st layer	tribas	radbas	Tribas
	output layer	purelin	purelin	Purelin
Training function		trainscg	traincgf	Trainscg
Success grade 1 (%)		71.4	66.7	65.0
Success grade 2 (%)		71.4	78.3	70.8
Success grade 3 (%)		81.1	80.6	89.3
Total success (%)		76.4	76.4	76.4
mse (mean square error)		0.116	0.082	0.126