KMS Of Academy of mathematics and systems sciences, CAS
INN: Interfaced neural networks as an accessible meshless approach for solving interface PDE problems | |
Wu, Sidi1,2; Lu, Benzhuo1,2 | |
2022-12-01 | |
发表期刊 | JOURNAL OF COMPUTATIONAL PHYSICS |
ISSN | 0021-9991 |
卷号 | 470页码:18 |
摘要 | Machine learning has been successfully applied to various fields in computational science and engineering. In this paper, we propose interfaced neural networks (INNs) to solve interface problems with discontinuous coefficients as well as irregular interfaces. Unlike using a single network, which has been found to be almost unable to retain the inherent properties of interface problems, INN decomposes the computational domain into several subdomains according to the interface and leverages multiple networks, each of which is responsible for the solution on one subdomain. An extended multiple-gradient descent (MGD) method is introduced during the training phase, which utilizes multiple -gradient information to adaptively balance the interplay between different terms in the loss function. The effectiveness, accuracy and robustness of the proposed framework are demonstrated through a collection of interface problems in two and three spatial dimensions, including a moving interface case. (C) 2022 Elsevier Inc. All rights reserved. |
关键词 | Interface problems Multiple-gradient descent Neural network PDEs |
DOI | 10.1016/j.jcp.2022.111588 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Nan Ji, Sheng Gui ; National Natural Science Foundation of China[11771435] ; National Natural Science Foundation of China[22073110] |
WOS研究方向 | Computer Science ; Physics |
WOS类目 | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
WOS记录号 | WOS:000864475500012 |
出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.amss.ac.cn/handle/2S8OKBNM/60857 |
专题 | 中国科学院数学与系统科学研究院 |
通讯作者 | Lu, Benzhuo |
作者单位 | 1.Chinese Acad Sci, Acad Math & Syst Sci, Natl Ctr Math & Interdisciplinary Sci, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Sidi,Lu, Benzhuo. INN: Interfaced neural networks as an accessible meshless approach for solving interface PDE problems[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2022,470:18. |
APA | Wu, Sidi,&Lu, Benzhuo.(2022).INN: Interfaced neural networks as an accessible meshless approach for solving interface PDE problems.JOURNAL OF COMPUTATIONAL PHYSICS,470,18. |
MLA | Wu, Sidi,et al."INN: Interfaced neural networks as an accessible meshless approach for solving interface PDE problems".JOURNAL OF COMPUTATIONAL PHYSICS 470(2022):18. |
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