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论文类型：期刊论文

发表时间：2015-11-02

发表刊物：ENGINEERING OPTIMIZATION

收录刊物：SCIE、EI、Scopus

卷号：47

期号：11

页面范围：1441-1458

ISSN号：0305-215X

关键字：DIRECT; metamodel; global optimization; simulation-based problems; Voronoi

摘要：This article presents a global optimization algorithm via the extension of the DIviding RECTangles (DIRECT) scheme to handle problems with computationally expensive simulations efficiently. The new optimization strategy improves the regular partition scheme of DIRECT to a flexible irregular partition scheme in order to utilize information from irregular points. The metamodelling technique is introduced to work with the flexible partition scheme to speed up the convergence, which is meaningful for simulation-based problems. Comparative results on eight representative benchmark problems and an engineering application with some existing global optimization algorithms indicate that the proposed global optimization strategy is promising for simulation-based problems in terms of efficiency and accuracy.