{"title":"基于进化状态估计器的多任务反馈优化算法","authors":"Xiaolong Wu;Wei Wang;Hongyan Yang;Honggui Han;Junfei Qiao","doi":"10.1109/TETCI.2024.3369314","DOIUrl":null,"url":null,"abstract":"Evolutionary multitasking optimization (EMTO), owing to its advantage of knowledge sharing, is capable of resolving multiple optimization tasks concurrently. Considering the evolutionary progresses between tasks may be inconsistent, it is necessary for EMTO to regulate the knowledge transfer strategy (KTS), which can alleviate the negative transfer caused by unmatched knowledge. Inspired by this, a multitasking feedback optimization algorithm is proposed with an evolutionary state estimator (MTFO-ESE). First, a multi-source knowledge acquisition strategy (MKA) is introduced to achieve inter-task knowledge, which promotes the tasks to seek the optimization directions in the search space. Second, an evolutionary state estimator (ESE) is established to evaluate the search progress of each task toward the optimal solution. The main idea is to measure the evolutionary pressure of the population under the current individual update strategy using prior and posterior observation. Third, a double-feedback adjustment mechanism (DFBA) is developed to manage KTS based on ESE. This mechanism contributes to alleviating the negative effect caused by unmatched knowledge and eliminating unnecessary exploration. Moreover, the convergence of the proposed MTFO-ESE is analyzed to ensure its effectiveness. Finally, the superior convergence and positive transfer ability of the proposed algorithm are verified through comparative experiments, ablation analyses, and a practical application.","PeriodicalId":13135,"journal":{"name":"IEEE Transactions on Emerging Topics in Computational Intelligence","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multitasking Feedback Optimization Algorithm Based on an Evolutionary State Estimator\",\"authors\":\"Xiaolong Wu;Wei Wang;Hongyan Yang;Honggui Han;Junfei Qiao\",\"doi\":\"10.1109/TETCI.2024.3369314\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Evolutionary multitasking optimization (EMTO), owing to its advantage of knowledge sharing, is capable of resolving multiple optimization tasks concurrently. 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引用次数: 0
摘要
多任务进化优化(EMTO)因其知识共享的优势,能够同时解决多个优化任务。考虑到任务间的进化进度可能不一致,EMTO 有必要调节知识转移策略(KTS),以缓解知识不匹配造成的负转移。受此启发,本文提出了一种带有进化状态估计器的多任务反馈优化算法(MTFO-ESE)。首先,引入多源知识获取策略(MKA)来实现任务间的知识共享,从而促进任务在搜索空间中寻找优化方向。其次,建立了一个进化状态估计器(ESE)来评估每个任务向最优解的搜索进度。其主要思想是利用先验观测和后验观测来衡量当前个体更新策略下种群的进化压力。第三,在 ESE 的基础上开发了一种双重反馈调整机制(DFBA)来管理 KTS。该机制有助于缓解知识不匹配带来的负面影响,消除不必要的探索。此外,还分析了所提出的 MTFO-ESE 的收敛性,以确保其有效性。最后,通过对比实验、消融分析和实际应用,验证了所提算法的卓越收敛性和正迁移能力。
Multitasking Feedback Optimization Algorithm Based on an Evolutionary State Estimator
Evolutionary multitasking optimization (EMTO), owing to its advantage of knowledge sharing, is capable of resolving multiple optimization tasks concurrently. Considering the evolutionary progresses between tasks may be inconsistent, it is necessary for EMTO to regulate the knowledge transfer strategy (KTS), which can alleviate the negative transfer caused by unmatched knowledge. Inspired by this, a multitasking feedback optimization algorithm is proposed with an evolutionary state estimator (MTFO-ESE). First, a multi-source knowledge acquisition strategy (MKA) is introduced to achieve inter-task knowledge, which promotes the tasks to seek the optimization directions in the search space. Second, an evolutionary state estimator (ESE) is established to evaluate the search progress of each task toward the optimal solution. The main idea is to measure the evolutionary pressure of the population under the current individual update strategy using prior and posterior observation. Third, a double-feedback adjustment mechanism (DFBA) is developed to manage KTS based on ESE. This mechanism contributes to alleviating the negative effect caused by unmatched knowledge and eliminating unnecessary exploration. Moreover, the convergence of the proposed MTFO-ESE is analyzed to ensure its effectiveness. Finally, the superior convergence and positive transfer ability of the proposed algorithm are verified through comparative experiments, ablation analyses, and a practical application.
期刊介绍:
The IEEE Transactions on Emerging Topics in Computational Intelligence (TETCI) publishes original articles on emerging aspects of computational intelligence, including theory, applications, and surveys.
TETCI is an electronics only publication. TETCI publishes six issues per year.
Authors are encouraged to submit manuscripts in any emerging topic in computational intelligence, especially nature-inspired computing topics not covered by other IEEE Computational Intelligence Society journals. A few such illustrative examples are glial cell networks, computational neuroscience, Brain Computer Interface, ambient intelligence, non-fuzzy computing with words, artificial life, cultural learning, artificial endocrine networks, social reasoning, artificial hormone networks, computational intelligence for the IoT and Smart-X technologies.