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This article is devoted to the analysis of inverse source problems for Stokes systems in unbounded domains where the corresponding velocity flow is observed on a surface. Our main objective is to study the unique determination of general…

偏微分方程分析 · 数学 2024-08-01 Adel Blouza , Léo Glangetas , Yavar Kian , Van-Sang Ngo

When estimating quantities and fields that are difficult to measure directly, such as the fluidity of ice, from point data sources, such as satellite altimetry, it is important to solve a numerical inverse problem that is formulated with…

数学软件 · 计算机科学 2023-08-11 Reuben W. Nixon-Hill , Daniel Shapero , Colin J. Cotter , David A. Ham

This paper develops a probabilistic numerical method for solution of partial differential equations (PDEs) and studies application of that method to PDE-constrained inverse problems. This approach enables the solution of challenging inverse…

统计方法学 · 统计学 2017-07-12 Jon Cockayne , Chris Oates , Tim Sullivan , Mark Girolami

The inverse Ising problem and its generalizations to Potts and continuous spin models have recently attracted much attention thanks to their successful applications in the statistical modeling of biological data. In the standard setting,…

定量方法 · 定量生物学 2017-03-06 Pierre Barrat-Charlaix , Matteo Figliuzzi , Martin Weigt

Ill-posed linear inverse problems appear frequently in various signal processing applications. It can be very useful to have theoretical characterizations that quantify the level of ill-posedness for a given inverse problem and the degree…

信号处理 · 电气工程与系统科学 2023-04-26 Justin P. Haldar

A uniqueness result in the inverse problem for an inhomogeneous hyperbolic system on a real vector bundle over a smooth compact manifold, based on energy measurements for improperly known sources, is established.

偏微分方程分析 · 数学 2011-11-10 Katsiaryna Krupchyk , Matti Lassas

In recent years, with the increase in renewable energy and storage penetration, power flow studies in low-voltage networks have become of interest in both industry and academia. Many studies use impedance represented by sequence components…

最优化与控制 · 数学 2025-06-10 Ching Hong Tam , Frederik Geth , Nadarajah Mithulananthan

We propose a method to accurately and efficiently identify the constitutive behavior of complex materials through full-field observations. We formulate the problem of inferring constitutive relations from experiments as an indirect inverse…

材料科学 · 物理学 2024-12-05 Andrew Akerson , Aakila Rajan , Kaushik Bhattacharya

All inverse problems rely on data to recover unknown parameters, yet not all data are equally informative. This raises the central question of data selection. A distinctive challenge in PDE-based inverse problems is their inherently…

数值分析 · 数学 2026-01-16 Kathrin Hellmuth , Ruhui Jin , Qin Li , Stephen J. Wright

In a large class of statistical inverse problems it is necessary to suppose that the transformation that is inverted is known. Although, in many applications, it is unrealistic to make this assumption, the problem is often insoluble without…

统计理论 · 数学 2008-12-18 Aurore Delaigle , Peter Hall , Alexander Meister

We consider the inverse problem of determining different type of information about a diffusion process, described by ordinary or fractional diffusion equations stated on a bounded domain, like the density of the medium or the velocity field…

偏微分方程分析 · 数学 2019-07-05 Yavar Kian , Zhiyuan Li , Yikan Liu , Masahiro Yamamoto

We consider an inverse problem of determining coefficient matrices in an $N$-system of second-order elliptic equations in a bounded two dimensional domain by a set of Cauchy data on arbitrary subboundary. The main result of the article is…

偏微分方程分析 · 数学 2015-06-04 Oleg Imanuvilov , Masahiro Yamamoto

Recovering microscopic couplings directly from data provides a route to solving the inverse problem in statistical field theories, one that complements the traditional-often computationally intractable-forward approach of predicting…

统计力学 · 物理学 2025-11-24 Shreya Shukla , Abhijith Jayakumar , Andrey Y. Lokhov

Hybrid inverse problems are mathematical descriptions of coupled-physics (also called multi-waves) imaging modalities that aim to combine high resolution with high contrast. The solution of a high-resolution inverse problem, a first step…

偏微分方程分析 · 数学 2013-11-26 Guillaume Bal

In this work, we consider an inverse problem of determining a source term for a structural acoustic partial differentia equation (PDE) model, comprised of a two or three-dimensional interior acoustic wave equation coupled to a Kirchoff…

偏微分方程分析 · 数学 2010-10-14 Shitao Liu

We study the inverse problem of recovering a spatially dependent variable order in a time-fractional diffusion model from the boundary flux measurement generated by a single boundary excitation. It arises in the identification of…

偏微分方程分析 · 数学 2026-02-27 Jiho Hong , Bangti Jin , Yavar Kian

In this paper, first a great number of inverse problems which arise in instrumentation, in computer imaging systems and in computer vision are presented. Then a common general forward modeling for them is given and the corresponding…

数据分析、统计与概率 · 物理学 2007-05-23 Ali Mohammad-Djafari

Inverse problems arise in a variety of imaging applications including computed tomography, non-destructive testing, and remote sensing. The characteristic features of inverse problems are the non-uniqueness and instability of their…

数值分析 · 数学 2020-06-09 Markus Haltmeier , Linh V. Nguyen

This study investigates the variational posterior convergence rates of inverse problems for partial differential equations (PDEs) with parameters in Besov spaces $B_{pp}^\alpha$ ($p \geq 1$) which are modeled naturally in a Bayesian manner…

统计理论 · 数学 2026-04-17 Shaokang Zu , Junxiong Jia , Zhiguo Wang

Physics-informed Machine Learning has recently become attractive for learning physical parameters and features from simulation and observation data. However, most existing methods do not ensure that the physics, such as balance laws (e.g.,…

数值分析 · 数学 2021-09-10 Satish Karra , Bulbul Ahmmed , Maruti K. Mudunuru