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Neural Inverse Operators for solving PDE Inverse Problems

open access: gold, 2023
Data and models for the paper "Neural Inverse Operators for solving PDE Inverse Problems"
­ Anonymous
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An Introduction to Finite Element Methods for Inverse Coefficient Problems in Elliptic PDEs [PDF]

open access: hybridJahresbericht Der Deutschen Mathematiker-vereinigung, 2021
Several novel imaging and non-destructive testing technologies are based on reconstructing the spatially dependent coefficient in an elliptic partial differential equation from measurements of its solution(s).
Bastian Harrach
openalex   +3 more sources

Introduction to inverse problems for hyperbolic PDEs [PDF]

open access: green, 2023
These lecture notes were written for CIRM SMF School Spectral Theory, Control and Inverse Problems, November ...
Medet Nursultanov, Lauri Oksanen
openalex   +3 more sources

A penalty method for PDE-constrained optimization in inverse problems [PDF]

open access: yesInverse Problems, 2015
Many inverse and parameter estimation problems can be written as PDE-constrained optimization problems. The goal, then, is to infer the parameters, typically coefficients of the PDE, from partial measurements of the solutions of the PDE for several right-
Herrmann, Felix J., van Leeuwen, Tristan
core   +5 more sources

Neural networks as smooth priors for inverse problems for PDEs

open access: yesJournal of Computational Mathematics and Data Science, 2021
Abstract In this paper we discuss the potential of using artificial neural networks as smooth priors in classical methods for inverse problems for PDEs. Exploring that neural networks are global and smooth function approximators, the idea is that neural networks could act as attractive priors for the coefficients to be estimated from noisy data.
J. Berg, K. Nyström
semanticscholar   +3 more sources

The Hadamard-PINN for PDE inverse problems: Convergence with distant initial guesses

open access: yesExamples and Counterexamples
This paper presents the Hadamard-Physics-Informed Neural Network (H-PINN) for solving inverse problems in partial differential equations (PDEs), specifically the heat equation and the Korteweg–de Vries (KdV) equation.
Yohan Chandrasukmana   +2 more
doaj   +2 more sources

Stable Numerical Solution of an Elliptic PDE Inverse Problem Subject to Incomplete Boundary Conditions

open access: greenWasit Journal of Computer and Mathematics Science
This paper addresses the inverse problem of reconstructing complete steady-state solutions for elliptic partial differential equations when boundary information is incomplete a situation common in electromagnetic, thermal, and geophysical modeling where ...
ABBAS ALDNADOI
doaj   +2 more sources

Inverse Source Problems for Degenerate Time-Fractional PDE [PDF]

open access: yesProgress in Fractional Differentiation and Applications, 2022
12 pages, 8 ...
Al-Salti, Nasser, Karimov, Erkinjon
openaire   +2 more sources

Graph Neural Regularizers for PDE Inverse Problems [PDF]

open access: green
We present a framework for solving a broad class of ill-posed inverse problems governed by partial differential equations (PDEs), where the target coefficients of the forward operator are recovered through an iterative regularization scheme that alternates between FEM-based inversion and learned graph neural regularization.
William Lauga   +5 more
openalex   +3 more sources

Structured Random Sketching for PDE Inverse Problems [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2020
For an overdetermined system $\mathsf{A}\mathsf{x} \approx \mathsf{b}$ with $\mathsf{A}$ and $\mathsf{b}$ given, the least-square (LS) formulation $\min_x \, \|\mathsf{A}\mathsf{x}-\mathsf{b}\|_2$ is often used to find an acceptable solution $\mathsf{x}$.
Ke Chen   +3 more
openaire   +3 more sources

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