Table 3.

Parameters and MAPEs of the FGBM (1,1,$t^{\alpha }$) model based on different optimization algorithms(Case 1)

Algorithm	$r$(Parameter 1)	$\lambda$(Parameter 2)	$\alpha$(Parameter 3)	$\xi$(Parameter 4)	MAPE(%)	test_MAPE(%)
GWO	0.0016	0.1922	1.3618	0.0125	1.2046	1.9173
PSO	0.0000	0.1796	1.3533	1.3194	1.2100	1.8242
QGA	0.6068	0.5624	0.1232	0.8031	1.1320	1.5805