Multigoal-oriented dual-weighted-residual error estimation using deep neural networks
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Abstract (arXiv)
Deep learning has shown successful application in visual recognition and certain artificial intelligence tasks. Deep learning is also considered as a powerful tool with high flexibility to approximate functions. In the present work, functions with desired properties are devised to approximate the solutions of PDEs. Our approach is based on a posteriori error estimation in which the adjoint problem is solved for the error localization to formulate an error estimator within the framework of neural network. An efficient and easy to implement algorithm is developed to obtain a posteriori error estimate for multiple goal functionals by employing the dual-weighted residual approach, which is followed by the computation of both primal and adjoint solutions using the neural network. The present study shows that such a data-driven model based learning has superior approximation of quantities of interest even with relatively less training data. The novel algorithmic developments are substantiated with numerical test examples. The advantages of using deep neural network over the shallow neural network are demonstrated and the convergence enhancing techniques are also presented
Key facts. Cited by 2 papers in the map (data through 14 Oct 2026). Builds on 10 of its 51 references that are in the map. First posted on arXiv 21 Dec 2021.
Builds on
10 of 51 references.
References · 10
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Citing papers per year: 2022: 2.
2 papers.