Inferring colloidal interaction from scattering by machine learning

A machine learning solution for the potential inversion problem in elastic scattering is outlined. The inversion scheme consists of two major components, a generative network featuring a variational autoencoder which extracts the targeted static two-point correlation functions from experimentally me...

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Bibliographic Details
Main Authors: Chi-Huan Tung, Shou-Yi Chang, Ming-Ching Chang, Jan-Michael Carrillo, Bobby G Sumpter, Changwoo Do, Wei-Ren Chen
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Carbon Trends
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Online Access:http://www.sciencedirect.com/science/article/pii/S266705692300007X
Description
Summary:A machine learning solution for the potential inversion problem in elastic scattering is outlined. The inversion scheme consists of two major components, a generative network featuring a variational autoencoder which extracts the targeted static two-point correlation functions from experimentally measured scattering cross sections, and a Gaussian process framework which probabilistically infers the relevant structural parameters from the inverted correlation functions. Via a case study of charged colloidal suspensions, the feasibility of this approach for quantitative study of molecular interaction is critically benchmarked and its merit over existing deterministic approaches, in terms of numerical accuracy and computationally efficiency, is demonstrated.
ISSN:2667-0569