A Multiobjective Optimization Approach to Solve a Parallel Machines Scheduling Problem

Table 6

The comparison results for 50 jobs and 5 machines.

	𝑛𝑠; NSGA-II	𝑛𝑠; SPEA-II	𝜇	max_𝜇	min_𝜇	𝐶1	𝐶2
1	5.4	4.4	−121.605	−71.3029	−276.454	0	1
2	6.9	3.9	−95.738	−28.279	−251.580	0.057	0.933
3	6.9	5.7	−147.188	−63.880	−253.701	0	1
4	7	4.7	−131.867	−26.957	−255.181	0	1
5	6	3.2	−151.970	−58.576	−281.431	0	1
6	5.2	2.9	−168.611	−101.356	−280.068	0	1
7	7	3.8	−194.197	−73.031	−302.200	0	1
8	6.7	3.4	−132.477	−51.033	−212.641	0	1
9	5.2	4	−161.820	−75.712	−253.037	0	1
10	7.1	3.5	−177.886	−46.687	−287.345	0	1
11	7.4	4	−147.448	−58.326	−305.017	0	1
12	7.1	4.4	−163.878	−22.844	−362.630	0	1
13	5	4.1	−149.905	−71.089	−269.733	0	1
14	5.7	3.8	−207.573	−63.686	−291.703	0	1
15	7	3.4	−189.336	−103.498	−277.892	0	1
16	7.4	3.5	−201.379	−62.870	−325.050	0	1