Cluster-Based Multiobjective Particle Swarm Optimization and Application for Chemical Plants

Table 3

Specific values of mean convergence according to iteration.

Iteration	MOPSO	CMOPSO-X	CMOPSO-OBJ
	0.13906	0.13759	0.13605
	0.11579	0.11132	0.11491
	0.10983	0.09651	0.10596
	0.10140	0.08217	0.09556
	0.09362	0.07166	0.08827
	0.08762	0.06667	0.08240

The italic values are the lowest values (best performance) for each method. The bold values are the lowest values (best performance) among the three compared methods in each iteration.