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A niche-based evolutionary algorithm with dual cooperative archive for solving constrained multi-objective optimization problems

引用

EGYPTIAN INFORMATICS JOURNAL 2024年 25卷

作者： Guo, Fengyu Li, Hecheng Qinghai Normal Univ Sch Comp Sci & Technol Xining 810016 Peoples R China Qinghai Normal Univ Sch Math & Stat Xining 810016 Peoples R China

Constrained multi-objective optimization problems (CMOPs) are commonly encountered in engineering practice. The key to effectively solving these problems lies in achieving a timely balance between convergence, diversity, and feasibility during iterations. Furthermore, the appropriate utilization of infeasible solutions is crucial for identifying potential feasible regions. In order to accomplish this comprehensive objective, we propose a novel dual-stage constrained multi-objective evolutionary algorithm (CMOEA) called NACMOEA in this paper. It can be characterized by the following features: 1) Introducing a novel niche-based individual selection and infeasible solution utilization strategy to enhance convergence, diversity, and feasibility. 2) Presenting a cooperative search strategy assisted by dual archives to approximate the constrained Pareto front (CPF) from both feasible and infeasible perspectives, thereby improving the efficiency of obtaining the complete CPF. 3) Designing a new stage switch method based on non-dominant coverage rate to ensure proper completion of search stage switching. Extensive experiments demonstrate that NACMOEA exhibits competitive comprehensive performance when compared with other advanced CMOEAs.

关键词： Constrained multi-objective optimization Dual stage algorithm Infeasible individual utilization niche-based selection method

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