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A general framework for enhancing relaxed Pareto dominance methods in evolutionary many-objective optimization

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Abstract

In the last decade, it is widely known that the Pareto dominance-based evolutionary algorithms (EAs) are unable to deal with many-objective optimization problems (MaOPs) well, as it is hard to maintain a good balance between convergence and diversity. Instead, most researchers in this domain tend to develop EAs that do not rely on Pareto dominance (e.g., decomposition-based and indicator-based techniques) to solve MaOPs. However, it is still hard for these non-Pareto-dominance-based methods to solve MaOPs with unknown irregular PF shapes. In this paper, we develop a general framework for enhancing relaxed Pareto dominance methods to solve MaOPs, which can promote both convergence and diversity. During the environmental selection step, we use M different cases of relaxed Pareto dominance simultaneously, where each expands the dominance area of solutions for \(M\,-\) 1 objectives to improve the selection pressure, while the remaining one objective keeps unchanged. We conduct the experiments on a variety of test problems, the result shows that our proposed framework can obviously improve the performance of relaxed Pareto dominance in solving MaOPs, and is very competitive against or outperform some state-of-the-art many-objective EAs.

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Acknowledgements

This work was supported by the Natural Science Foundation of China under Grant 61973337, 62073155, 62002137, 62106088 and the Guangdong Provincial Key Laboratory under Grant 2020B121201001

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Authors and Affiliations

  1. Jiangsu Provincial Engineering Laboratory of Pattern Recognition and Computational Intelligence, Jiangnan University, Wuxi, 214122, China

    Shuwei Zhu

  2. Department of Electronics and Information Engineering, Tongji University, Shanghai, 201804, China

    Lihong Xu

  3. BEACON Center, Michigan State University, East Lansing, MI, 48824, USA

    Erik Goodman & Kalyanmoy Deb

  4. Department of Computer Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China

    Zhichao Lu

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  1. Shuwei Zhu
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  2. Lihong Xu
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Correspondence to Lihong Xu.

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Zhu, S., Xu, L., Goodman, E. et al. A general framework for enhancing relaxed Pareto dominance methods in evolutionary many-objective optimization. Nat Comput 22, 287–313 (2023). https://doi.org/10.1007/s11047-022-09889-z

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