An Improved Particle Swarm Optimization for the Automobile Spare Part Warehouse Location Problem

Table 2

Computational results using IPSO algorithm and tabu search.

Bench	Tabu search	IPSO	Bench	Tabu search	IPSO
Cap71	932 615.75	932 615.75	MP4	2633.56	2633.56
Cap72	977 799.40	977 799.40	MP5	2290.16	2290.16
Cap73	1 010 641.45	1 010 641.45	MQ1	3591.27	3591.27
Cap74	1 034 976.97	1 034 976.98	MQ2	3543.66	3543.66
Cap101	796 648.44	796 648.44	MQ3	3476.81	3476.82
Cap102	854 704.20	854 704.20	MQ4	3742.47	3742.47
Cap103	893 782.11	893 782.11	MQ5	3751.33	3751.33
Cap104	928 941.75	928 941.75	MR1	2349.86	2349.86
Cap131	793 439.56	793 439.56	MR2	2344.76	2344.76
Cap132	851 495.32	851 495.33	MR3	2183.24	2183.24
Cap133	893 076.71	893 076.71	MR4	2433.11	2433.11
Cap134	928 941.75	928 941.75	MR5	2344.35	2344.35
Cap a	17 156 454.4	17 156 454.48	MS1	4378.63	4378.63
Cap b	12 979 071.5	12 979 071.58	MS2	4658.35	4658.35
Cap c	11 505 594.3	11 505 594.33	MS3	4659.16	4659.16
MO1	1156.91	1156.91	MS4	4536.00	4536.01
MO2	1227.67	1227.67	MS5	4888.91	4888.91
MO3	1286.37	1286.37	MT1	9176.51	9176.51
MO4	1177.88	1177.88	MT2	9618.85	9618.85
MO5	1147.60	1147.61	MT3	8781.11	8781.11
MP1	2460.10	2460.10	MT4	9225.49	9225.49
MP2	2419.32	2419.32	MT5	9540.67	9540.67
MP3	2498.15	2498.15