An Effective Hybrid Self-Adapting Differential Evolution Algorithm for the Joint Replenishment and Location-Inventory Problem in a Three-Level Supply Chain

Table 8

Comparative results using three algorithms under different S.

Δ𝑆 (%)	Algorithms	Location sites (DCs)	CPU time	𝑘𝑖	𝐶𝐿	𝐶𝑅	𝐶𝐿+𝐶𝑅
−40	HSDE	31,9,3	105.4	2,1,1	2888.9	394.5	3283.4
	HDE	3,31,9	109.9	2,2,1	2881.4	403.0	3284.4
−20	HSDE	49,31,3	96.7	1,1,1	2951.2	358.2	3309.4
	HDE	3,31,9	106.8	1,1,1	2924.2	401.2	3325.4
20	HSDE	31,49,3	107.9	1,1,1	2966.1	429.2	3395.3
	HDE	31,49,3	111.5	1,1,1	2966.1	429.2	3395.3