Learning physical models that can respect conservation laws

D Hansen, DC Maddix, S Alizadeh… - International …, 2023 - proceedings.mlr.press
Recent work in scientific machine learning (SciML) has focused on incorporating partial
differential equation (PDE) information into the learning process. Much of this work has …

Using Uncertainty Quantification to Characterize and Improve Out-of-Domain Learning for PDEs

SC Mouli, DC Maddix, S Alizadeh, G Gupta… - arXiv preprint arXiv …, 2024 - arxiv.org
Existing work in scientific machine learning (SciML) has shown that data-driven learning of
solution operators can provide a fast approximate alternative to classical numerical partial …

Numerical artifacts in the Generalized Porous Medium Equation: Why harmonic averaging itself is not to blame

DC Maddix, L Sampaio, M Gerritsen - Journal of Computational Physics, 2018 - Elsevier
Abstract The degenerate parabolic Generalized Porous Medium Equation (GPME) poses
numerical challenges due to self-sharpening and its sharp corner solutions. For these …

[PDF][PDF] A vertex-centered and positivity-preserving finite volume scheme for two-dimensional three-temperature radiation diffusion equations on general polygonal …

S Su, J Wu - Numerical Mathematics: Theory, Methods and …, 2020 - global-sci.com
Two-dimensional three-temperature (2-D 3-T) radiation diffusion equations are widely used
to approximately describe the evolution of radiation energy within a multimaterial system …

[HTML][HTML] Using uncertainty quantification to characterize and improve out-of-domain learning for PDEs

SC Mouli, DM Robinson, S Alizadeh, G Gupta, A Stuart… - 2024 - amazon.science
Existing work in scientific machine learning (SciML) has shown that data-driven learning of
solution operators can provide a fast approximate alternative to classical numerical partial …

Mechanistic and Data-Adaptive Bayesian Methods for Scientific Inference

D Hansen - 2023 - deepblue.lib.umich.edu
To draw rigorous conclusions from scientific data, Bayesian statistics requires
computationally efficient methods for posterior inference as well as models that are both …

Computational realization of non-linear diffusion generalizing Barenblatt-Pattle's approach on the case of flows' simulations in elastic microvessels

EB Postnikov, AI Lavrova - Saratov Fall Meeting 2020 …, 2021 - spiedigitallibrary.org
The discovery of meningeal lymphatic vessels [Louveau et al, 2015] is one of the most
impressive breakthroughs of neurophysiology of last years, and the problem of its …

[PDF][PDF] Averaging Methods for the Generalized Porous Medium Equation

L Guo - 2018 - researchgate.net
The Stefan problem is introduced and discretized. The problem is then solved using three
different numerical schemes; arithmetic averaging (AA), shock-based averaging (SAM) with …

[图书][B] Numerical Artifacts in the Generalized Porous Medium Equation and Solutions

DC Maddix - 2018 - search.proquest.com
Abstract The degenerate parabolic Generalized Porous Medium Equation (GPME) poses
numerical challenges due to self-sharpening and its sharp corner solutions. Spurious …