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

Geoffrey Pruvost*, Bilel Derbel, Arnaud Liefooghe, Ke Li, Qingfu Zhang

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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.
Original languageEnglish
Title of host publicationEvolutionary Computation in Combinatorial Optimization
Subtitle of host publication20th European Conference, EvoCOP 2020, Held as Part of EvoStar 2020, Proceedings
EditorsLuís Paquete, Christine Zarges
PublisherSpringer, Cham
Pages131-147
ISBN (Electronic)978-3-030-43680-3
ISBN (Print)978-3-030-43679-7
DOIs
Publication statusPublished - Apr 2020
Event20th European Conference on Evolutionary Computation in Combinatorial Optimization, EvoCOP 2020, held as part of Evostar 2020 - Seville, Spain
Duration: 15 Apr 202017 Apr 2020

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12102 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference20th European Conference on Evolutionary Computation in Combinatorial Optimization, EvoCOP 2020, held as part of Evostar 2020
PlaceSpain
CitySeville
Period15/04/2017/04/20

Bibliographical note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

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