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• W4387619020 endingPage "110892" @default.
• W4387619020 startingPage "110892" @default.
• W4387619020 abstract "In solving expensive multi-objective optimization problems, surrogate models have been widely investigated. The existing multi-objective algorithms adopting surrogate models can be classified into two categories: surrogate-assisted evolutionary algorithms (SAEAs) and surrogate-based optimization algorithms (SBAs). However, their efficiency and convergence remain considerably inadequate. In this work, we propose a trust-region-like algorithm for dealing with expensive multi-objective problems, where only a small number of expensive objective function evaluations are allowed. The optimization process of the proposed algorithm mainly includes two stages. The first stage is the surrogate-assisted stage, in which a promising population with the consideration of convergence and diversity is obtained by reference vector-guided evolutionary algorithms (RVEA). The promising population is considered the preliminary trust-region. Moreover, a new adaptive sampling selection criterion switching between two different sampling strategies is used to further narrow the trust-region. The second stage is the surrogate-based stage, wherein the selection of the most promising individuals is carried out from the ultimate trust-region using the pseudo hypervolume-based expected improvement matrix (PEIM) criterion. Comparison results on the benchmark functions demonstrate that the proposed algorithm is competitive with five state-of-art algorithms in a limited computational budget. Finally, the proposed algorithm is used in the design optimization of a variable stiffness composite cylinder." @default.
• W4387619020 created "2023-10-14" @default.
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• W4387619020 date "2023-10-01" @default.
• W4387619020 modified "2023-10-15" @default.
• W4387619020 title "A Trust-region-like Algorithm for Expensive Multi-objective Optimization" @default.
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• W4387619020 doi "https://doi.org/10.1016/j.asoc.2023.110892" @default.
• W4387619020 hasPublicationYear "2023" @default.
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