Search Results for author: Paul J. Atzberger

Found 9 papers, 3 papers with code

Geometric Neural Operators (GNPs) for Data-Driven Deep Learning of Non-Euclidean Operators

no code implementations16 Apr 2024 Blaine Quackenbush, Paul J. Atzberger

We introduce Geometric Neural Operators (GNPs) for accounting for geometric contributions in data-driven deep learning of operators.

SDYN-GANs: Adversarial Learning Methods for Multistep Generative Models for General Order Stochastic Dynamics

no code implementations7 Feb 2023 Panos Stinis, Constantinos Daskalakis, Paul J. Atzberger

We introduce adversarial learning methods for data-driven generative modeling of the dynamics of $n^{th}$-order stochastic systems.

GD-VAEs: Geometric Dynamic Variational Autoencoders for Learning Nonlinear Dynamics and Dimension Reductions

1 code implementation10 Jun 2022 Ryan Lopez, Paul J. Atzberger

We develop data-driven methods incorporating geometric and topological information to learn parsimonious representations of nonlinear dynamics from observations.

MLMOD: Machine Learning Methods for Data-Driven Modeling in LAMMPS

1 code implementation29 Jul 2021 Paul J. Atzberger

MLMOD is a software package for incorporating machine learning approaches and models into simulations of microscale mechanics and molecular dynamics in LAMMPS.

BIG-bench Machine Learning regression

Variational Autoencoders for Learning Nonlinear Dynamics of Physical Systems

no code implementations7 Dec 2020 Ryan Lopez, Paul J. Atzberger

We develop data-driven methods for incorporating physical information for priors to learn parsimonious representations of nonlinear systems arising from parameterized PDEs and mechanics.

GMLS-Nets: A framework for learning from unstructured data

2 code implementations7 Sep 2019 Nathaniel Trask, Ravi G. Patel, Ben J. Gross, Paul J. Atzberger

Data fields sampled on irregularly spaced points arise in many applications in the sciences and engineering.

Coarse-Grained Methods for Heterogeneous Vesicles with Phase-Separated Domains: Elastic Mechanics of Shape Fluctuations, Plate Compression, and Channel Insertion

no code implementations15 Jan 2019 David A. Rower, Paul J. Atzberger

We develop coarse-grained particle approaches for studying the elastic mechanics of vesicles with heterogeneous membranes having phase-separated domains.

Soft Condensed Matter

Importance of the Mathematical Foundations of Machine Learning Methods for Scientific and Engineering Applications

no code implementations7 Aug 2018 Paul J. Atzberger

There is a strong need for further mathematical developments on the foundations of machine learning methods to increase the level of rigor of employed methods and to ensure more reliable and interpretable results.

BIG-bench Machine Learning Image Classification +2

Bayesian Inference over the Stiefel Manifold via the Givens Representation

no code implementations25 Oct 2017 Arya A Pourzanjani, Richard M Jiang, Brian Mitchell, Paul J. Atzberger, Linda R. Petzold

We show how the Givens representation can be used to develop practical methods for transforming densities over the Stiefel manifold into densities over subsets of Euclidean space.

Bayesian Inference Dimensionality Reduction

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