Neural operators for accelerating scientific simulations and design

K Azizzadenesheli, N Kovachki, Z Li… - Nature Reviews …, 2024 - nature.com
Scientific discovery and engineering design are currently limited by the time and cost of
physical experiments. Numerical simulations are an alternative approach but are usually …

An operator learning perspective on parameter-to-observable maps

DZ Huang, NH Nelsen, M Trautner - arxiv preprint arxiv:2402.06031, 2024 - arxiv.org
Computationally efficient surrogates for parametrized physical models play a crucial role in
science and engineering. Operator learning provides data-driven surrogates that map …

Discretization error of Fourier neural operators

S Lanthaler, AM Stuart, M Trautner - arxiv preprint arxiv:2405.02221, 2024 - arxiv.org
Operator learning is a variant of machine learning that is designed to approximate maps
between function spaces from data. The Fourier Neural Operator (FNO) is a common model …

Bilo: Bilevel local operator learning for pde inverse problems

RZ Zhang, X **e, JS Lowengrub - arxiv preprint arxiv:2404.17789, 2024 - arxiv.org
We propose a new neural network based method for solving inverse problems for partial
differential equations (PDEs) by formulating the PDE inverse problem as a bilevel …

[HTML][HTML] Innovating Indwelling Catheter Design to Counteract Urinary Tract Infection

MJ Drake, F Clavica, C Murphy, MJ Fader - European Urology Focus, 2024 - Elsevier
Background and objective Bacteriuria is anticipated in long-term indwelling catheter (IDC)
use, and urinary tract infections (UTIs) and related issues are common. Defence …

Engineering of polydisperse porous media for enhanced fluid flows through systematic topology tuning via differentiable direct numerical simulation

MG Alhashim, MP Brenner - Physical Review Fluids, 2024 - APS
While predicting the flow behavior for a well-defined particulate microstructure is fairly
tractable, systematic tailoring of the particle properties to yield desired flows remains illusive …

How Can We Show That Artificial Intelligence May Improve Our Assessment and Management of Lower Urinary Tract Dysfunctions?—ICI‐RS 2024

E Finazzi Agrò, E Rosato, GB Kheir… - Neurourology and …, 2024 - Wiley Online Library
Aims The integration of artificial intelligence (AI) into functional urology management must
be assessed for its clinical utility, but hopefully will change, perhaps to revolutionize the way …

Towards enforcing hard physics constraints in operator learning frameworks

V Duruisseaux, M Liu-Schiaffini, J Berner… - ICML 2024 AI for …, 2024 - openreview.net
Enforcing physics constraints in surrogate models for PDE evolution operators can improve
the physics plausibility of their predictions and their convergence and generalization …

Harnessing wall slip towards tunable microswimming in Poiseuille flow

S Ghosh, S Ghoshal, A Poddar - Journal of Fluid Mechanics, 2024 - cambridge.org
Understanding the effect of intricate surface wettability conditions on microswimmers is
crucial for precisely navigating them across narrow microcirculatory networks. Here, we …

Macrotransport of active particles in periodic channels and fields: Rectification and dispersion

Z Peng - The Journal of Chemical Physics, 2024 - pubs.aip.org
Transport and dispersion of active particles in structured environments, such as corrugated
channels and porous media, are important for the understanding of both natural and …