Table 2. ANN models symbols

Input variables	Number of neurons in hidden class 1	Number of neurons in hidden class 2	Output variables	Symbol
10	7		1	ANN 10-7-1
10	5		1	ANN 10-5-1
10	4		1	ANN 10-4-1
10	3		1	ANN 10-3-1
10	7	4	1	ANN 10-7-4-1
10	5	3	1	ANN 10-5-3-1
10	5	2	1	ANN 10-5-2-1