Improving Vector Evaluated Particle Swarm Optimisation by Incorporating Nondominated Solutions

Table 4

Algorithm performance tested on ZDT4 problem.

Measure	VEPSO	VEPSOnds1	VEPSOnds2
NS
Ave.	6.610000	95.250000	64.220000
SD	3.920665	16.518967	38.860949
Min.	1.000000	15.000000	4.000000
Max.	21.000000	100.000000	100.000000
GD
Ave.	5.062543	0.383646	0.349438
SD	3.167428	0.478535	0.431632
Min.	0.000000	0.000155	0.000165
Max.	13.350278	2.049212	1.923652
SP
Ave.	0.858655	1.035510	0.962023
SD	0.147255	0.347336	0.367664
Min.	0.483073	0.077112	0.144160
Max.	1.236461	1.419225	1.435101
HV
Ave.	0.228824	0.399914	0.437755
SD	0.188151	0.159971	0.155761
Min.	—	—	—
Max.	0.573978	0.661941	0.660821