A Collection-Distribution Center Location and Allocation Optimization Model in Closed-Loop Supply Chain for Chinese Beer Industry

Table 6

Results of the pb-glnPSO, glnPSO, and IM.

Item	pb-glnPSO	glnPSO	IM
Best result	81920.1	82884.5	83315.6
Worst result	82434.9	83826.6	84585.5
Average result	82231.1	83467.6	83852.8
Difference between the best and the worst	514.81	942.10	1269.90
Difference between the average and the best	510.986	992.734	864.315
Standard deviation	203.82	583.08	537.27
CPU time	8.6796	10.9764	14.5000