Search Results for author: Reese Jones

Found 7 papers, 0 papers with code

Robust scalable initialization for Bayesian variational inference with multi-modal Laplace approximations

no code implementations12 Jul 2023 Wyatt Bridgman, Reese Jones, Mohammad Khalil

In this work, we propose a method for constructing an initial Gaussian mixture model approximation that can be used to warm-start the iterative solvers for variational inference.

Variational Inference

Modular machine learning-based elastoplasticity: generalization in the context of limited data

no code implementations15 Oct 2022 Jan N. Fuhg, Craig M. Hamel, Kyle Johnson, Reese Jones, Nikolaos Bouklas

The development of accurate constitutive models for materials that undergo path-dependent processes continues to be a complex challenge in computational solid mechanics.

Deep learning and multi-level featurization of graph representations of microstructural data

no code implementations29 Sep 2022 Reese Jones, Cosmin Safta, Ari Frankel

We develop a means of deep learning of hidden features on the reduced graph given the native discretization and a segmentation of the initial input field.

A heteroencoder architecture for prediction of failure locations in porous metals using variational inference

no code implementations31 Jan 2022 Wyatt Bridgman, Xiaoxuan Zhang, Greg Teichert, Mohammad Khalil, Krishna Garikipati, Reese Jones

In this work we employ an encoder-decoder convolutional neural network to predict the failure locations of porous metal tension specimens based only on their initial porosities.

Variational Inference

Mesh-based graph convolutional neural networks for modeling materials with microstructure

no code implementations4 Jun 2021 Ari Frankel, Cosmin Safta, Coleman Alleman, Reese Jones

Predicting the evolution of a representative sample of a material with microstructure is a fundamental problem in homogenization.

Tensor Basis Gaussian Process Models of Hyperelastic Materials

no code implementations23 Dec 2019 Ari Frankel, Reese Jones, Laura Swiler

Finally, we consider an approach that recovers the strain-energy density function and derives the stress tensor from this potential.

GPR Physics-informed machine learning

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