Table 3.

Neurons in each hidden layer and learning rate of ANN based on heuristic algorithms for different population sizes.

Population Size	Parameters	GSA-ANN		PSO-ANN		BSA-ANN
		Outdoor	Indoor	Outdoor	Indoor	Outdoor	Indoor
10	N1	19	15	12	9	14	11
	N2	19	17	18	16	19	18
	LR	0.2541	0.3429	0.1877	0.4477	0.2505	0.6652
20	N1	17	10	18	7	10	15
	N2	17	16	16	18	19	18
	LR	0.8004	0.7394	0.0709	0.5864	0.3492	0.223
30	N1	6	14	17	14	15	15
	N2	12	11	18	14	19	19
	LR	0.5864	0.4764	0.4533	0.5027	0.8871	0.6608
40	N1	18	10	17	15	17	8
	N2	16	14	16	16	17	17
	LR	0.5947	0.5152	0.6127	0.4206	0.7139	0.9743
50	N1	14	13	11	16	16	17
	N2	13	10	18	19	18	19
	LR	0.5487	0.535	0.9407	0.7194	0.4737	0.4655

N1: number of neurons in hidden layer 1, N2: number of neurons in hidden layer 1, and LR: learning rate of ANN.