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Article type: Research Article
Authors: Li, Xina | Li, Xiaolia; b; * | Wang, Kanga
Affiliations: [a] Faculty of Information Technology, Beijing University of Technology, Beijing, China | [b] Beijing Key Laboratory of Computational Intelligence and Intelligent System; Engineering Research Center of Digital Community, Ministry of Education, Beijing, China
Correspondence: [*] Corresponding author. Xiaoli Li, E-mail: [email protected].
Abstract: The key characteristic of multi-objective evolutionary algorithm is that it can find a good approximate multi-objective optimal solution set when solving multi-objective optimization problems(MOPs). However, most multi-objective evolutionary algorithms perform well on regular multi-objective optimization problems, but their performance on irregular fronts deteriorates. In order to remedy this issue, this paper studies the existing algorithms and proposes a multi-objective evolutionary based on niche selection to deal with irregular Pareto fronts. In this paper, the crowding degree is calculated by the niche method in the process of selecting parents when the non-dominated solutions converge to the first front, which improves the the quality of offspring solutions and which is beneficial to local search. In addition, niche selection is adopted into the process of environmental selection through considering the number and the location of the individuals in its niche radius, which improve the diversity of population. Finally, experimental results on 23 benchmark problems including MaF and IMOP show that the proposed algorithm exhibits better performance than the compared MOEAs.
Keywords: Niche selection, multi-objective optimization, diversity, irregular Pareto front
DOI: 10.3233/JIFS-212426
Journal: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 6, pp. 5863-5883, 2022
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