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Volume 15, Issue 6
High Order Deep Domain Decomposition Method for Solving High Frequency Interface Problems

Zhipeng Chang, Ke Li, Xiufen Zou & Xueshuang Xiang

Adv. Appl. Math. Mech., 15 (2023), pp. 1602-1630.

Published online: 2023-10

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  • Abstract

This paper proposes a high order deep domain decomposition method (HOrderDeepDDM) for solving high-frequency interface problems, which combines high order deep neural network (HOrderDNN) with domain decomposition method (DDM). The main idea of HOrderDeepDDM is to divide the computational domain into some sub-domains by DDM, and apply HOrderDNNs to solve the high-frequency problem on each sub-domain. Besides, we consider an adaptive learning rate annealing method to balance the errors inside the sub-domains, on the interface and the boundary during the optimization process. The performance of HOrderDeepDDM is evaluated on high-frequency elliptic and Helmholtz interface problems. The results indicate that: HOrderDeepDDM inherits the ability of DeepDDM to handle discontinuous interface problems and the power of HOrderDNN to approximate high-frequency problems. In detail, HOrderDeepDDMs $(p>1)$ could capture the high-frequency information very well. When compared to the deep domain decomposition method (DeepDDM), HOrderDeepDDMs $(p >1)$ converge faster and achieve much smaller relative errors with the same number of trainable parameters. For example, when solving the high-frequency interface elliptic problems in Section 3.3.1, the minimum relative errors obtained by HOrderDeepDDMs $(p =9)$ are one order of magnitude smaller than that obtained by DeepDDMs when the number of the parameters keeps the same, as shown in Fig. 4.

  • AMS Subject Headings

35Q68, 65N55, 68T99

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{AAMM-15-1602, author = {Chang , ZhipengLi , KeZou , Xiufen and Xiang , Xueshuang}, title = {High Order Deep Domain Decomposition Method for Solving High Frequency Interface Problems}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2023}, volume = {15}, number = {6}, pages = {1602--1630}, abstract = {

This paper proposes a high order deep domain decomposition method (HOrderDeepDDM) for solving high-frequency interface problems, which combines high order deep neural network (HOrderDNN) with domain decomposition method (DDM). The main idea of HOrderDeepDDM is to divide the computational domain into some sub-domains by DDM, and apply HOrderDNNs to solve the high-frequency problem on each sub-domain. Besides, we consider an adaptive learning rate annealing method to balance the errors inside the sub-domains, on the interface and the boundary during the optimization process. The performance of HOrderDeepDDM is evaluated on high-frequency elliptic and Helmholtz interface problems. The results indicate that: HOrderDeepDDM inherits the ability of DeepDDM to handle discontinuous interface problems and the power of HOrderDNN to approximate high-frequency problems. In detail, HOrderDeepDDMs $(p>1)$ could capture the high-frequency information very well. When compared to the deep domain decomposition method (DeepDDM), HOrderDeepDDMs $(p >1)$ converge faster and achieve much smaller relative errors with the same number of trainable parameters. For example, when solving the high-frequency interface elliptic problems in Section 3.3.1, the minimum relative errors obtained by HOrderDeepDDMs $(p =9)$ are one order of magnitude smaller than that obtained by DeepDDMs when the number of the parameters keeps the same, as shown in Fig. 4.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2022-0006}, url = {http://global-sci.org/intro/article_detail/aamm/22053.html} }
TY - JOUR T1 - High Order Deep Domain Decomposition Method for Solving High Frequency Interface Problems AU - Chang , Zhipeng AU - Li , Ke AU - Zou , Xiufen AU - Xiang , Xueshuang JO - Advances in Applied Mathematics and Mechanics VL - 6 SP - 1602 EP - 1630 PY - 2023 DA - 2023/10 SN - 15 DO - http://doi.org/10.4208/aamm.OA-2022-0006 UR - https://global-sci.org/intro/article_detail/aamm/22053.html KW - Deep neural network, high order methods, high-frequency interface problems, domain decomposition method. AB -

This paper proposes a high order deep domain decomposition method (HOrderDeepDDM) for solving high-frequency interface problems, which combines high order deep neural network (HOrderDNN) with domain decomposition method (DDM). The main idea of HOrderDeepDDM is to divide the computational domain into some sub-domains by DDM, and apply HOrderDNNs to solve the high-frequency problem on each sub-domain. Besides, we consider an adaptive learning rate annealing method to balance the errors inside the sub-domains, on the interface and the boundary during the optimization process. The performance of HOrderDeepDDM is evaluated on high-frequency elliptic and Helmholtz interface problems. The results indicate that: HOrderDeepDDM inherits the ability of DeepDDM to handle discontinuous interface problems and the power of HOrderDNN to approximate high-frequency problems. In detail, HOrderDeepDDMs $(p>1)$ could capture the high-frequency information very well. When compared to the deep domain decomposition method (DeepDDM), HOrderDeepDDMs $(p >1)$ converge faster and achieve much smaller relative errors with the same number of trainable parameters. For example, when solving the high-frequency interface elliptic problems in Section 3.3.1, the minimum relative errors obtained by HOrderDeepDDMs $(p =9)$ are one order of magnitude smaller than that obtained by DeepDDMs when the number of the parameters keeps the same, as shown in Fig. 4.

Zhipeng Chang, Ke Li, Xiufen Zou & Xueshuang Xiang. (2023). High Order Deep Domain Decomposition Method for Solving High Frequency Interface Problems. Advances in Applied Mathematics and Mechanics. 15 (6). 1602-1630. doi:10.4208/aamm.OA-2022-0006
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