A dimension-reduced variational approach for solving physics-based inverse problems using generative adversarial network priors and normalizing flows

A Dasgupta, DV Patel, D Ray, EA Johnson… - Computer Methods in …, 2024 - Elsevier
We propose a novel modular inference approach combining two different generative models—
generative adversarial networks (GAN) and normalizing flows—to approximate the posterior …

[HTML][HTML] Tumor spheroid elasticity estimation using mechano-microscopy combined with a conditional generative adversarial network

KY Foo, B Shaddy, J Murgoitio-Esandi… - Computer Methods and …, 2024 - Elsevier
Abstract Background and Objectives Techniques for imaging the mechanical properties of
cells are needed to study how cell mechanics influence cell function and disease …

Conditional score-based diffusion models for solving inverse problems in mechanics

A Dasgupta, H Ramaswamy, J Murgoitio-Esandi… - arXiv preprint arXiv …, 2024 - arxiv.org
We propose a framework to perform Bayesian inference using conditional score-based
diffusion models to solve a class of inverse problems in mechanics involving the inference of …

Conditional score-based diffusion models for solving inverse elasticity problems

A Dasgupta, H Ramaswamy, J Murgoitio-Esandi… - Computer Methods in …, 2025 - Elsevier
We propose a framework to perform Bayesian inference using conditional score-based
diffusion models to solve a class of inverse problems in mechanics involving the inference of …

Y-Diagonal Couplings: Approximating Posteriors with Conditional Wasserstein Distances

J Chemseddine, P Hagemann, C Wald - arXiv preprint arXiv:2310.13433, 2023 - arxiv.org
In inverse problems, many conditional generative models approximate the posterior
measure by minimizing a distance between the joint measure and its learned approximation …

Conditional score-based generative models for solving physics-based inverse problems

A Dasgupta, J Murgoitio-Esandi, D Ray… - … 2023 Workshop on …, 2023 - openreview.net
We propose to sample from high-dimensional posterior distributions arising in physics-
based inverse problems using conditional score-based generative models. The proposed …

Bayesian Inverse Problems with Conditional Sinkhorn Generative Adversarial Networks in Least Volume Latent Spaces

Q Chen, P Tsilifis, M Fuge - arXiv preprint arXiv:2405.14008, 2024 - arxiv.org
Solving inverse problems in scientific and engineering fields has long been intriguing and
holds great potential for many applications, yet most techniques still struggle to address …

Learning WENO for entropy stable schemes to solve conservation laws

P Charles, D Ray - arXiv preprint arXiv:2403.14848, 2024 - arxiv.org
Entropy conditions play a crucial role in the extraction of a physically relevant solution for a
system of conservation laws, thus motivating the construction of entropy stable schemes that …

Probabilistic brain extraction in MR images via conditional generative adversarial networks

S Moazami, D Ray, D Pelletier… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Brain extraction, or the task of segmenting the brain in MR images, forms an essential step
for many neuroimaging applications. These include quantifying brain tissue volumes …

[HTML][HTML] U-Net for temperature estimation from simulated infrared images in tokamaks

A Juven, MH Aumeunier, J Marot - Nuclear Materials and Energy, 2024 - Elsevier
Surface temperature measurement is critical for the safety and proper operation of nuclear
fusion reactors such as tokamaks, which operate at high temperature [100–3600° C] in the …