A Multiobjective Optimization Approach to Solve a Parallel Machines Scheduling Problem

Table 5

The comparison results for 20 jobs and 3 machines.

	𝑛𝑠; NSGA-II	𝑛𝑠; SPEA-II	𝜇	max_𝜇	min_𝜇	𝐶1	𝐶2
1	5.2	3.6	−57.783	−26.900	−157.165	0	1
2	6.2	3.8	−64.773	−19.398	−183.824	0	1
3	6.7	3.8	−43.357	−9.967	−116.936	0	1
4	6.7	3.7	−80.565	−11.515	−158.075	0.020	0.986
5	5.6	3.9	−38.786	−5.863	−65.553	0	1
6	6.3	4.5	−84.840	−15.780	−150.437	0	1
7	6.3	3.3	−70.763	−13.980	−121.599	0	1
8	6.6	4.2	−130.905	−39.507	−207.397	0	1
9	4.4	4.4	−89.322	−33.199	−242.742	0	1
10	5.6	3.6	−90.343	−19.670	−177.626	0	1
11	5.4	3.5	−69.500	−30.652	−162.870	0	1
12	6.6	3.7	−102.433	−16.751	−226.405	0	1
13	5	3.9	−83.883	−19.717	−160.027	0	1
14	5.2	3.6	−61.100	−3.506	−122.710	0.025	0.950
15	6.8	3.7	−56.728	−18.379	−96.926	0	1
16	4.5	3.5	−125.261	−33.281	−199.404	0	1