The Design of Contactors Based on the Niching Multiobjective Particle Swarm Optimization

Table 1

The performance of five algorithms.

			NMOPSO	MOPSO	NSGA-II	AGMOPSO	CDMOPSO
ZDT1	GD	Mean	1.49e − 4	2.02e − 3	1.01e − 3	6.23e − 4	7.80e − 4
		Variance	1.82e − 9	1.12e − 5	7.70e − 7	3.17e − 6	2.02e − 7
	Obj1	Best	0	0	0	0	0
		Worst	0	0.009	0	0	0
	Obj2	Best	0	0.002	0	0	0
		Worst	0	0.178	0.329	0.031	0.050
ZDT2	GD	Mean	9.14e − 5	5.28e − 4	9.94e − 4	9.61e − 5	1.23e − 4
		Variance	2.58e − 8	2.91e − 8	4.76e − 7	2.25e − 9	6.75e − 9
	Obj1	Best	0	0	0	0	0
		Worst	0	0	0	0.011	0
	Obj2	Best	0	0	0	0	0
		Worst	0.027	0.040	0.243	0.037	0.004
ZDT3	GD	Mean	1.53e − 4	4.65e − 4	2.70e − 3	3.31e − 3	1.22e − 3
		Variance	4.32e − 9	3.05e − 8	6.61e − 6	3.17e − 5	9.75e − 6
	Obj1	Best	0	0	0	0	0
		Worst	0	0.002	0	0	0
	Obj2	Best	−0.773	−0.744	−0.773	−0.773	−0.773
		Worst	−0.773	−0.506	−0.355	−0.592	−0.563