Gaussian Process Regression for Materials and Molecules

Abstract

We provide an introduction to Gaussian process regression (GPR) machine-learning methods in computational materials science and chemistry. The focus of the present review is on the regression of atomistic properties: in particular, on the construction of interatomic potentials, or force fields, in the Gaussian Approximation Potential (GAP) framework; beyond this, we also discuss the fitting of arbitrary scalar, vectorial, and tensorial quantities. Methodological aspects of reference data generation, representation, and regression, as well as the question of how a data-driven model may be validated, are reviewed and critically discussed. A survey of applications to a variety of research questions in chemistry and materials science illustrates the rapid growth in the field. A vision is outlined for the development of the methodology in the years to come.

Keywords

Affiliated Institutions

• Queen's University Belfast GB
• University of Oxford GB
• United States Naval Research Laboratory US
• École Polytechnique Fédérale de Lausanne CH
• University of Cambridge GB
• University of Warwick GB

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