A Pseudo-Parallel Genetic Algorithm Integrating Simulated Annealing for Stochastic Location-Inventory-Routing Problem with Consideration of Returns in E-Commerce

Table 7

Statistical results of optimal objective function value of two algorithms (cost: yuan, CPU time: second).

	Algorithm	Mean	Standard deviation	Coefficient of variation	Significance test
					value	value (Sig. 2-tailed)
Cost	PPGASA	1650568	271320	0.16	−9.144	0.000
	GA	2134686	454600	0.21
CPU time	PPGASA	1.60	0.25	0.15	6.826	0.000
	GA	1.38	0.25	0.18