Integer Linear Programming Models for the Containership Stowage Problem

Table 11

Experimental results on scenario I by the four models.

Instance no.	C	D	T	Model IV		Model III		Model II		Improved model I
				Obj	Time (s)	Obj	Time (s)	Obj	Time (s)	Obj	Time (s)
1-01	525	4	33	0	44	0	102	0	93	0	234
1-02	656	4	42	0	109	0	154	0	184	0	166
1-03	590	4	47	0	187	0	226	0	262	0	362
1-04	766	4	48	0	218	0	377	0	338	0	200
1-05	654	4	50	0	215	0	331	0	273	0	537
1-06	461	4	59	0	259	0	432	0	422	0	478
1-07	724	4	59	0	464	0	490	0	476	0	517
1-08	815	4	59	0	320	0	530	0	515	0	528
1-09	551	4	62	0	285	0	528	0	566	0	670
1-10	844	4	62	0	313	0	539	0	450	0	719