An evolutionary algorithm with clustering-based selection strategies for multi-objective optimization

Publication Date

5-1-2023

Document Type

Article

Publication Title

Information Sciences

Volume

624

DOI

10.1016/j.ins.2022.12.076

First Page

217

Last Page

234

Abstract

This paper proposes an evolutionary algorithm with clustering-based selection strategies to deal with multi-objective optimization problems. In the proposed algorithm, two clustering based selection strategies, named local indicator selection and local crowding selection, have been devised to appropriately search the space. The local indicator selection is developed to select diverse and well-converged individuals for mating while the local crowding selection strategy is designed to maintain a set of evenly distributed individuals on the Pareto front for next generation of evolution. The proposed method is further enhanced by a clustering based crowding degree strategy, which is introduced to extract a uniformly distributed and convergent solutions as the final output. The performance of proposed algorithm has been evaluated on 31 benchmark problems and compared with related methods. The results clearly show the merits of proposed strategies and the proposed method could significantly outperform related methods to be compared.

Funding Number

61872123

Funding Sponsor

Royal Society

Keywords

Clustering, I∊+ indicator, Multi-objective evolution algorithm, Selection strategy

Department

Computer Science

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