Kernel Methods in the Deep Ritz framework: Theory and practice
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866913532020260864 |
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| author | Kleikamp, Hendrik Wenzel, Tizian |
| author_facet | Kleikamp, Hendrik Wenzel, Tizian |
| contents | In this contribution, kernel approximations are applied as ansatz functions within the Deep Ritz method. This allows to approximate weak solutions of elliptic partial differential equations with weak enforcement of boundary conditions using Nitsche's method. A priori error estimates are proven in different norms leveraging both standard results for weak solutions of elliptic equations and well-established convergence results for kernel methods. This availability of a priori error estimates renders the method useful for practical purposes. The procedure is described in detail, meanwhile providing practical hints and implementation details. By means of numerical examples, the performance of the proposed approach is evaluated numerically and the results agree with the theoretical findings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03503 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Kernel Methods in the Deep Ritz framework: Theory and practice Kleikamp, Hendrik Wenzel, Tizian Numerical Analysis 46E22, 65N30, 68T01 In this contribution, kernel approximations are applied as ansatz functions within the Deep Ritz method. This allows to approximate weak solutions of elliptic partial differential equations with weak enforcement of boundary conditions using Nitsche's method. A priori error estimates are proven in different norms leveraging both standard results for weak solutions of elliptic equations and well-established convergence results for kernel methods. This availability of a priori error estimates renders the method useful for practical purposes. The procedure is described in detail, meanwhile providing practical hints and implementation details. By means of numerical examples, the performance of the proposed approach is evaluated numerically and the results agree with the theoretical findings. |
| title | Kernel Methods in the Deep Ritz framework: Theory and practice |
| topic | Numerical Analysis 46E22, 65N30, 68T01 |
| url | https://arxiv.org/abs/2410.03503 |