Search Results for author: Peter Bjørn Jørgensen

Found 8 papers, 4 papers with code

Coherent energy and force uncertainty in deep learning force fields

no code implementations7 Dec 2023 Peter Bjørn Jørgensen, Jonas Busk, Ole Winther, Mikkel N. Schmidt

In machine learning energy potentials for atomic systems, forces are commonly obtained as the negative derivative of the energy function with respect to atomic positions.

Graph Neural Network Interatomic Potential Ensembles with Calibrated Aleatoric and Epistemic Uncertainty on Energy and Forces

no code implementations10 May 2023 Jonas Busk, Mikkel N. Schmidt, Ole Winther, Tejs Vegge, Peter Bjørn Jørgensen

The proposed method considers both epistemic and aleatoric uncertainty and the total uncertainties are recalibrated post hoc using a nonlinear scaling function to achieve good calibration on previously unseen data, without loss of predictive accuracy.

NeuralNEB -- Neural Networks can find Reaction Paths Fast

no code implementations20 Jul 2022 Mathias Schreiner, Arghya Bhowmik, Tejs Vegge, Peter Bjørn Jørgensen, Ole Winther

We also compare with and outperform Density Functional based Tight Binding (DFTB) on both accuracy and computational resource.

Equivariant graph neural networks for fast electron density estimation of molecules, liquids, and solids

1 code implementation1 Dec 2021 Peter Bjørn Jørgensen, Arghya Bhowmik

Electron density $\rho(\vec{r})$ is the fundamental variable in the calculation of ground state energy with density functional theory (DFT).

Density Estimation Total Energy

Calibrated Uncertainty for Molecular Property Prediction using Ensembles of Message Passing Neural Networks

no code implementations13 Jul 2021 Jonas Busk, Peter Bjørn Jørgensen, Arghya Bhowmik, Mikkel N. Schmidt, Ole Winther, Tejs Vegge

In this work we extend a message passing neural network designed specifically for predicting properties of molecules and materials with a calibrated probabilistic predictive distribution.

BIG-bench Machine Learning Decision Making +2

DeepDFT: Neural Message Passing Network for Accurate Charge Density Prediction

1 code implementation4 Nov 2020 Peter Bjørn Jørgensen, Arghya Bhowmik

We introduce DeepDFT, a deep learning model for predicting the electronic charge density around atoms, the fundamental variable in electronic structure simulations from which all ground state properties can be calculated.

Materials property prediction using symmetry-labeled graphs as atomic-position independent descriptors

2 code implementations15 May 2019 Peter Bjørn Jørgensen, Estefanía Garijo del Río, Mikkel N. Schmidt, Karsten Wedel Jacobsen

The possibilities for prediction in a realistic computational screening setting is investigated on a dataset of 5976 ABSe$_3$ selenides with very limited overlap with the OQMD training set.

BIG-bench Machine Learning Formation Energy +3

Neural Message Passing with Edge Updates for Predicting Properties of Molecules and Materials

5 code implementations8 Jun 2018 Peter Bjørn Jørgensen, Karsten Wedel Jacobsen, Mikkel N. Schmidt

Neural message passing on molecular graphs is one of the most promising methods for predicting formation energy and other properties of molecules and materials.

Drug Discovery Formation Energy

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