Fig. 5

obtained the Pareto optimal set and the true Pareto front of the ZDT4 problem. (a): MOSCHO, (b): MOSCA, (c): MOPSO, (d): MALO, (e): MSSA.

obtained the Pareto optimal set and the true Pareto front of the ZDT4 problem. (a): MOSCHO, (b): MOSCA, (c): MOPSO, (d): MALO, (e): MSSA.