A Model-Consistent Data-Driven Computational Strategy for PDE Joint Inversion Problems
Fuente:
arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866913923191537664 |
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| author | Ren, Kui Zhang, Lu |
| author_facet | Ren, Kui Zhang, Lu |
| contents | The task of simultaneously reconstructing multiple physical coefficients in partial differential equations (PDEs) from observed data is ubiquitous in applications. In this work, we propose an integrated data-driven and model-based iterative reconstruction framework for such joint inversion problems where additional data on the unknown coefficients are supplemented for better reconstructions. Our method couples the supplementary data with the PDE model to make the data-driven modeling process consistent with the model-based reconstruction procedure. We characterize the impact of learning uncertainty on the joint inversion results for two typical inverse problems. Numerical evidence is provided to demonstrate the feasibility of using data-driven models to improve the joint inversion of multiple coefficients in PDEs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_09228 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | A Model-Consistent Data-Driven Computational Strategy for PDE Joint Inversion Problems Ren, Kui Zhang, Lu Numerical Analysis Machine Learning Optimization and Control Methodology 35R30, 49M41, 65M32, 65N21, 68Q32, 68T07, 78A46 The task of simultaneously reconstructing multiple physical coefficients in partial differential equations (PDEs) from observed data is ubiquitous in applications. In this work, we propose an integrated data-driven and model-based iterative reconstruction framework for such joint inversion problems where additional data on the unknown coefficients are supplemented for better reconstructions. Our method couples the supplementary data with the PDE model to make the data-driven modeling process consistent with the model-based reconstruction procedure. We characterize the impact of learning uncertainty on the joint inversion results for two typical inverse problems. Numerical evidence is provided to demonstrate the feasibility of using data-driven models to improve the joint inversion of multiple coefficients in PDEs. |
| title | A Model-Consistent Data-Driven Computational Strategy for PDE Joint Inversion Problems |
| topic | Numerical Analysis Machine Learning Optimization and Control Methodology 35R30, 49M41, 65M32, 65N21, 68Q32, 68T07, 78A46 |
| url | https://arxiv.org/abs/2210.09228 |