[HTML][HTML] A graph convolutional autoencoder approach to model order reduction for parametrized PDEs

F Pichi, B Moya, JS Hesthaven - Journal of Computational Physics, 2024 - Elsevier
The present work proposes a framework for nonlinear model order reduction based on a
Graph Convolutional Autoencoder (GCA-ROM). In the reduced order modeling (ROM) …

[HTML][HTML] Physics-informed graph neural network emulation of soft-tissue mechanics

D Dalton, D Husmeier, H Gao - Computer Methods in Applied Mechanics …, 2023 - Elsevier
Modern computational soft-tissue mechanics models have the potential to offer unique,
patient-specific diagnostic insights. The deployment of such models in clinical settings has …

Deep learning-based surrogate models for parametrized PDEs: Handling geometric variability through graph neural networks

NR Franco, S Fresca, F Tombari… - … Interdisciplinary Journal of …, 2023 - pubs.aip.org
Mesh-based simulations play a key role when modeling complex physical systems that, in
many disciplines across science and engineering, require the solution to parametrized time …

Branched latent neural maps

M Salvador, AL Marsden - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
Abstract We introduce Branched Latent Neural Maps (BLNMs) to learn finite dimensional
input–output maps encoding complex physical processes. A BLNM is defined by a simple …

Guidelines for Mechanistic Modeling and Analysis in Cardiovascular Research

MJ Colebank, PA Oomen… - American Journal …, 2024 - journals.physiology.org
Computational, or in-silico, models are an effective, non-invasive tool for investigating
cardiovascular function. These models can be used in the analysis of experimental and …

Simulation-based inference for cardiovascular models

A Wehenkel, J Behrmann, AC Miller, G Sapiro… - arXiv preprint arXiv …, 2023 - arxiv.org
Over the past decades, hemodynamics simulators have steadily evolved and have become
tools of choice for studying cardiovascular systems in-silico. While such tools are routinely …

[HTML][HTML] Graph convolution network-based surrogate model for natural convection in annuli

F Feng, YB Li, ZH Chen, WT Wu, JZ Peng… - Case Studies in Thermal …, 2024 - Elsevier
This work develops a model for natural convection in annuli with internal heat sources
based on Graph Convolution Network (GCN), achieving rapid prediction by directly …

Unsupervised physics-informed deep learning for assessing pulmonary artery hemodynamics

X Liu, B Xie, D Zhang, H Zhang, Z Gao… - Expert Systems with …, 2024 - Elsevier
Deep learning advancements have significantly benefited medical applications. One such
helpful application is noninvasive fractional flow reserve (FFR) evaluation along the …

Neural ordinary differential equations for model order reduction of stiff systems

M Caldana, JS Hesthaven - arXiv preprint arXiv:2408.06073, 2024 - arxiv.org
Neural Ordinary Differential Equations (ODEs) represent a significant advancement at the
intersection of machine learning and dynamical systems, offering a continuous-time analog …

Digital twinning of cardiac electrophysiology for congenital heart disease

M Salvador, F Kong, M Peirlinck… - Journal of the …, 2024 - royalsocietypublishing.org
In recent years, blending mechanistic knowledge with machine learning has had a major
impact in digital healthcare. In this work, we introduce a computational pipeline to build …