[HTML][HTML] Fully probabilistic deep models for forward and inverse problems in parametric PDEs

A Vadeboncoeur, ÖD Akyildiz, I Kazlauskaite… - Journal of …, 2023 - Elsevier
We introduce a physics-driven deep latent variable model (PDDLVM) to learn
simultaneously parameter-to-solution (forward) and solution-to-parameter (inverse) maps of …

Generating synthetic data for neural operators

E Hasani, RA Ward - arXiv preprint arXiv:2401.02398, 2024 - arxiv.org
Numerous developments in the recent literature show the promising potential of deep
learning in obtaining numerical solutions to partial differential equations (PDEs) beyond the …

Physics-Aware Neural Implicit Solvers for multiscale, parametric PDEs with applications in heterogeneous media

M Chatzopoulos, PS Koutsourelakis - arXiv preprint arXiv:2405.19019, 2024 - arxiv.org
We propose Physics-Aware Neural Implicit Solvers (PANIS), a novel, data-driven framework
for learning surrogates for parametrized Partial Differential Equations (PDEs). It consists of a …

Efficient Prior Calibration From Indirect Data

OD Akyildiz, M Girolami, AM Stuart… - arXiv preprint arXiv …, 2024 - arxiv.org
Bayesian inversion is central to the quantification of uncertainty within problems arising from
numerous applications in science and engineering. To formulate the approach, four …

Φ-DVAE: Physics-Informed Dynamical Variational Autoencoders for Unstructured Data Assimilation

A Glyn-Davies, C Duffin, OD Akyildiz… - Journal of Computational …, 2024 - Elsevier
Incorporating unstructured data into physical models is a challenging problem that is
emerging in data assimilation. Traditional approaches focus on well-defined observation …

Ensemble models outperform single model uncertainties and predictions for operator-learning of hypersonic flows

VJ Leon, N Ford, H Mrema, J Gilbert, A New - arXiv preprint arXiv …, 2023 - arxiv.org
High-fidelity computational simulations and physical experiments of hypersonic flows are
resource intensive. Training scientific machine learning (SciML) models on limited high …

Learning from the Future: Improve Long-term Mesh-based Simulation with Foresight

X Luo, J Luo, H Jiang, W Ju, C Yang, M Zhang, Y Sun - openreview.net
This paper studies the problem of learning mesh-based physical simulations, a crucial task
with applications in fluid mechanics and aerodynamics. Recent works typically utilize graph …