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Previous Colloquia
Title: Physically-motivated machine learning for multiscale molecular simulations
Date: 30-06-2020 14:00-15:00 Central European Summer Time
Speaker: Tristan Bereau, Assistant professor, Computational Soft Matter, HIMS & IvI, UvA
Abstract:
Advanced statistical methods are rapidly impregnating many scientific fields, offering new perspectives on long-standing problems. In materials science, data-driven methods are already bearing fruit in various disciplines, such as hard condensed matter or inorganic chemistry, as well as soft matter to a smaller extent. When coupling machine learning to molecular simulations, many problems of interest display dauntingly-large interpolation spaces, limiting their immediate application without undesired artifacts (e.g., extrapolation). The incorporation of physical information, such as conserved quantities, symmetries, and constraints, can play a decisive role in reducing the interpolation space. Conversely, physics can help determine whether a machine-learning prediction should be trusted, acting as a more robust alternative to the predictive variance. In this talk I will show how incorporating physics in machine-learning models can help connect resolutions in multiscale modeling. Illustrations will include force-field parametrization, automated dimensionality reduction and clustering, and generative models to reintroduce atomistic detail in coarse-grained configurations.
Ref: Journal of Chemical Physics
For an overview of previous colloquia, please have a look at out blog.