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arXiv 2302.14526math.NAcs.NA
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深度核模型在认证和自适应RB-ML-ROM代理建模中的应用

Application of Deep Kernel Models for Certified and Adaptive RB-ML-ROM Surrogate Modeling

Tizian Wenzel, Bernard Haasdonk, Hendrik Kleikamp, Mario Ohlberger, Felix Schindler

摘要:

在缩减基方法的框架中,我们最近引入了一种新的认证分层和自适应代理模型,该模型可用于由参数化偏微分方程控制的输入-输出映射的有效近似。这种自适应方法结合了全阶模型,降阶模型和机器学习模型。在这篇文章中,我们通过利用机器学习部分的新内核模型来扩展该方法,特别是结构化深度内核网络以及两层内核模型。我们证明了这些增强的内核模型的RB-ML-ROM代理建模链的可用性,并强调其在数值实验中的好处。

英文摘要:

In the framework of reduced basis methods, we recently introduced a new certified hierarchical and adaptive surrogate model, which can be used for efficient approximation of input-output maps that are governed by parametrized partial differential equations. This adaptive approach combines a full order model, a reduced order model and a machine-learning model. In this contribution, we extend the approach by leveraging novel kernel models for the machine learning part, especially structured deep kernel networks as well as two layered kernel models. We demonstrate the usability of those enhanced kernel models for the RB-ML-ROM surrogate modeling chain and highlight their benefits in numerical experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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