Applied Mathematics in Inverse Problems and Uncertainty Quantification

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "Computational and Applied Mathematics".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 584

Special Issue Editors


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Guest Editor
Department of Computational Applied Mathematics & Operations Research, Rice University, Houston, TX, USA
Interests: deep learning; generative models; variational inference; inverse problems; uncertainty quantification; signal processing

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Guest Editor
Department of Applied Mathematics, University of Washington, Seattle, WA, USA
Interests: inverse problems; applied mathematics; scientific computing

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Guest Editor
University Medical Center Utrecht, Utrecht, The Netherlands
Interests: numerical modeling; inverse problems; uncertainty quantification; seismic imaging; MRI

Special Issue Information

Dear Colleagues,

Inverse problems are ubiquitous in many areas of science and engineering where the goal is to reliably determine the hidden properties of a system or process from observations of its output. Inverse problems are often ill-posed, meaning that small changes in the data can lead to significant variations in the solution. Additionally, due to non-trivial nullspace of the forward operator and measurement noise, solutions to inverse problems commonly arising in real-world applications cannot be uniquely determined. Uncertainty quantification plays a critical role in such problems by providing measures of the reliability and robustness of the inferred solutions.

This Special Issue aims to present recent advances in the mathematical theory, numerical methods, applications of inverse problems and uncertainty quantification. The focus is on the development of innovative mathematical and computational tools for solving complex problems, as well as their practical applications in fields such as medical imaging, geophysics, finance, and materials science. The articles in this Special Issue cover a wide range of topics, including Bayesian inference, optimization techniques, regularization methods, high-dimensional data analysis, and machine learning. 

We cordially invite authors to submit their original research articles that align with the scope of this Special Issue.

Dr. Ali Siahkoohi
Dr. Bamdad Hosseini
Dr. Gabrio Rizzuti
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Mathematics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • inverse problems
  • uncertainty quantification
  • Bayesian inference
  • optimization
  • regularization
  • machine learning

Published Papers (1 paper)

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Research

20 pages, 3322 KiB  
Article
Source Design Optimization for Depth Image Reconstruction in X-ray Imaging
by Hamid Fathi and Tristan van Leeuwen
Mathematics 2024, 12(10), 1524; https://doi.org/10.3390/math12101524 - 14 May 2024
Viewed by 330
Abstract
X-ray tomography is an effective non-destructive testing method for industrial quality control. Limited-angle tomography can be used to reduce the amount of data that need to be acquired and thereby speed up the process. In some industrial applications, however, objects are flat and [...] Read more.
X-ray tomography is an effective non-destructive testing method for industrial quality control. Limited-angle tomography can be used to reduce the amount of data that need to be acquired and thereby speed up the process. In some industrial applications, however, objects are flat and layered, and laminography is preferred. It can deliver 2D images of the structure of a layered object at a particular depth from very limited data. An image at a particular depth is obtained by summing those parts of the data that contribute to that slice. This produces a sharp image of that slice while superimposing a blurred version of structures present at other depths. In this paper, we investigate an Optimal Experimental Design (OED) problem for laminography that aims to determine the optimal source positions. Not only can this be used to mitigate imaging artifacts, it can also speed up the acquisition process in cases where moving the source and detector is time-consuming (e.g., in robotic arm imaging systems). We investigate the imaging artifacts in detail through a modified Fourier Slice Theorem. We address the experimental design problem within the Bayesian risk framework using empirical Bayes risk minimization. Finally, we present numerical experiments on simulated data. Full article
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