A strategy cooperative algorithm based on state-awareness for large-scale multi-objective optimization

Large-scale multi-objective optimization problems (LSMOPs) usually involve hundreds to thousands of decision variables. When dealing with unconstrained 2-3-objective LSMOPs, multi-objective evolutionary algorithms (MOEAs) are likely to get trapped in local optima, making it difficult to ensure the d...

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Vydáno v:Swarm and evolutionary computation Ročník 99; s. 102165
Hlavní autoři: Liu, Hao, Zheng, Jinhua, Hu, Yaru, Yu, Xiaozhong, Ou, Junwei, Zou, Juan, Yang, Shengxiang
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier B.V 01.12.2025
Témata:
Large-scale multi-objective optimization problems
Multi-objective optimization algorithms
State-aware mechanism
Strategy cooperation
State-aware mechanism
Strategy cooperation
Multi-objective optimization algorithms
Large-scale multi-objective optimization problems
ISSN:2210-6502
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Shrnutí:Large-scale multi-objective optimization problems (LSMOPs) usually involve hundreds to thousands of decision variables. When dealing with unconstrained 2-3-objective LSMOPs, multi-objective evolutionary algorithms (MOEAs) are likely to get trapped in local optima, making it difficult to ensure the diversity and convergence of solutions within limited computational resources. To tackle this challenge, we propose a strategy-cooperative algorithm based on state-awareness for large-scale multi-objective optimization, abbreviated as LMOEA-SC. In LMOEA-SC, we have designed a state-aware mechanism that can monitor the evolutionary state of the population in real-time. Based on the real-time information, LMOEA-SC flexibly switches and collaborates between the proposed learning strategy based on diversity protection competitive swarm optimization (DPCSO) and the escape strategy based on global exploration sampling (GES), thus effectively coping with different evolutionary states and challenges. The obtained statistical results, with a 73% improvement, clearly show that compared with six state-of-the-art MOEAs, LMOEA-SC has significant competitiveness in numerous large-scale multi-objective test instances with up to 2,000 decision variables. •State-aware mechanism for large-scale multi-objective optimization, balancing diversity and convergence in high-dimensional landscapes.•Adaptive strategy collaboration (DPCSO-GES) dynamically adjusts search processes to boost efficiency under dimension constraints.•Experimental results show competitive performance on LSMOP and LMF text suites, outperforming state-of-the-art algorithms.
ISSN:2210-6502
DOI:10.1016/j.swevo.2025.102165