Search Results for author: Jonathan Vandermause

Found 4 papers, 2 papers with code

Phase discovery with active learning: Application to structural phase transitions in equiatomic NiTi

no code implementations10 Jan 2024 Jonathan Vandermause, Anders Johansson, Yucong Miao, Joost J. Vlassak, Boris Kozinsky

Here, we train four machine-learned force fields for equiatomic NiTi based on the LDA, PBE, PBEsol, and SCAN DFT functionals.

Active Learning

Multitask machine learning of collective variables for enhanced sampling of rare events

no code implementations7 Dec 2020 Lixin Sun, Jonathan Vandermause, Simon Batzner, Yu Xie, David Clark, Wei Chen, Boris Kozinsky

Computing accurate reaction rates is a central challenge in computational chemistry and biology because of the high cost of free energy estimation with unbiased molecular dynamics.

BIG-bench Machine Learning Dimensionality Reduction

Bayesian Force Fields from Active Learning for Simulation of Inter-Dimensional Transformation of Stanene

3 code implementations26 Aug 2020 Yu Xie, Jonathan Vandermause, Lixin Sun, Andrea Cepellotti, Boris Kozinsky

We present a way to dramatically accelerate Gaussian process models for interatomic force fields based on many-body kernels by mapping both forces and uncertainties onto functions of low-dimensional features.

Active Learning

On-the-Fly Bayesian Active Learning of Interpretable Force-Fields for Atomistic Rare Events

1 code implementation3 Apr 2019 Jonathan Vandermause, Steven B. Torrisi, Simon Batzner, Alexie M. Kolpak, Boris Kozinsky

Machine learning based interatomic potentials currently require manual construction of training sets consisting of thousands of first principles calculations and are often restricted to single-component and nonreactive systems.

Computational Physics Materials Science

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