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European Conference on Evolutionary Computation in Combinatorial Optimization (Part of EvoStar)

EvoCOP 2020: Evolutionary Computation in Combinatorial Optimization pp 131–147Cite as

On the Combined Impact of Population Size and Sub-problem Selection in MOEA/D

Part of the Lecture Notes in Computer Science book series (LNTCS,volume 12102)

Abstract

This paper intends to understand and to improve the working principle of decomposition-based multi-objective evolutionary algorithms. We review the design of the well-established Moea/d framework to support the smooth integration of different strategies for sub-problem selection, while emphasizing the role of the population size and of the number of offspring created at each generation. By conducting a comprehensive empirical analysis on a wide range of multi- and many-objective combinatorial NK landscapes, we provide new insights into the combined effect of those parameters on the anytime performance of the underlying search process. In particular, we show that even a simple random strategy selecting sub-problems at random outperforms existing sophisticated strategies. We also study the sensitivity of such strategies with respect to the ruggedness and the objective space dimension of the target problem.

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Acknowledgments

This work was supported by the French national research agency (ANR-16-CE23-0013-01) and the Research Grants Council of Hong Kong (RGC Project No. A-CityU101/16).

Author information

Authors and Affiliations

  1. University of Lille, CRIStAL, Inria, Lille, France

    Geoffrey Pruvost, Bilel Derbel & Arnaud Liefooghe

  2. University of Exeter, Exeter, UK

    Ke Li

  3. City University Hong Kong, Kowloon Tong, Hong Kong

    Qingfu Zhang

Authors
  1. Geoffrey Pruvost
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  2. Bilel Derbel
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  3. Arnaud Liefooghe
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  4. Ke Li
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  5. Qingfu Zhang
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Corresponding authors

Correspondence to Geoffrey Pruvost , Bilel Derbel , Arnaud Liefooghe , Ke Li or Qingfu Zhang .

Editor information

Editors and Affiliations

  1. University of Coimbra, Coimbra, Portugal

    Dr. Luís Paquete

  2. Aberystwyth University, Aberystwyth, UK

    Dr. Christine Zarges

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Pruvost, G., Derbel, B., Liefooghe, A., Li, K., Zhang, Q. (2020). On the Combined Impact of Population Size and Sub-problem Selection in MOEA/D. In: Paquete, L., Zarges, C. (eds) Evolutionary Computation in Combinatorial Optimization. EvoCOP 2020. Lecture Notes in Computer Science(), vol 12102. Springer, Cham. https://doi.org/10.1007/978-3-030-43680-3_9

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  • DOI: https://doi.org/10.1007/978-3-030-43680-3_9

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