Research on improving parallel sequence sampling method in ship type optimization

Dongqin Li, Lingfeng Lu
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Abstract

To solve the problem of complex and time-consuming simulation calculations in ship type optimization, the application of approximate model technology based on spatial segmentation sequence sampling is becoming increasingly widespread. Based on the Kriging approximation model and the cross-leaving one error method, a new sampling strategy is proposed during the iterative sampling process. The importance of adding sample subspaces and surrounding subspaces is considered in the design space, and parallel thinking is added to develop an efficient parallel sequence sampling method to improve sample aggregation. The proposed method was applied to optimize ship types, and its effectiveness was verified.
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改进船型优化中并行序列取样方法的研究
为解决船型优化中复杂耗时的模拟计算问题,基于空间分割序列采样的近似模型技术的应用日益广泛。基于克里金近似模型和交叉留一误差法,在迭代采样过程中提出了一种新的采样策略。在设计空间中考虑了添加样本子空间和周围子空间的重要性,并加入了并行思维,开发出一种高效的并行序列采样方法,以提高样本聚集度。提出的方法被应用于优化船型,其有效性得到了验证。
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