期刊
SWARM AND EVOLUTIONARY COMPUTATION
卷 70, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.swevo.2022.101055
关键词
Constrained multi-objective optimization; Evolutionary algorithm; Co-evolution; Tri-population
资金
- National Natural Science Foundation of China [62076225]
- Natural Sci-ence Foundation for Distinguished Young Scholars of Hubei [2019CFA081]
This paper proposes a tri-population based co-evolutionary framework (TriP) to handle complex CMOPs. The experiments show that the proposed framework has competitive performance and versatility, and it is also effective in handling real-world CMOPs.
Balancing between the optimization of objective functions and constraint satisfaction is essential to handle constrained multi-objective optimization problems (CMOPs). Recently, various methods have been presented to enhance the performance for the constrained multi-objective optimization evolutionary algorithms (CMOEAs). However, most of them encounter difficulties when dealing with the CMOPs with complex feasible regions. To overcome this drawback, this paper proposes a tri-population based co-evolutionary framework (TriP): i) the first and second populations are evolved through a weak co-evolutionary relation for the original and unconstrained problems respectively to handle CMOPs with relatively simple constraints; and ii) the third population is evolved solely for the constraint relaxed problem with constraint relaxation technique. The cooperation of three populations preserve the advantages of weak co-evolution and constraint relaxation. Experiments on six benchmark CMOPs with 65 instances and diverse features are performed. Compared to 9 state-of-the-art CMOEAs, the proposed framework yields highly competitive performance and the best versatility. In addition, the effectiveness of the proposed framework on handling real-world CMOPs is also verified.
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