Machine learning symbolic equations for diffusion with physics-based descriptions
Data
2022Language
en
Soggetto
Abstract
This work incorporates symbolic regression to propose simple and accurate expressions that fit to material datasets. The incorporation of symbolic regression in physical sciences opens the way to replace "black-box"machine learning techniques with representations that carry the physical meaning and can reveal the underlying mechanism in a purely data-driven approach. The application here is the extraction of analytical equations for the self-diffusion coefficient of the Lennard-Jones fluid by exploiting widely incorporating data from the literature. We propose symbolic formulas of low complexity and error that achieve better or comparable results to well-known microscopic and empirical expressions. Results refer to the material state space both as a whole and in distinct gas, liquid, and supercritical regions. © 2022 Author(s).
Collections
Related items
Showing items related by title, author, creator and subject.
-
The Effects of a Cognitively Challenging Physical Activity Intervention on School Children’s Executive Functions and Motivational Regulations
Kolovelonis A., Pesce C., Goudas M. (2022)This study examined the effects of a physical education intervention consisting of cognitively challenging physical activity games on school children’s executive functions and motivational regulations. Ninety-nine fourth- ... -
MAC protocol for wireless cooperative physical-layer network coding
Argyriou, A. (2012)In this paper we present a cooperative medium access control (MAC) protocol that is designed for a physical layer that can decode interfering transmissions in distributed wireless networks. The proposed protocol pro-actively ... -
Promoting physical activity during school closures imposed by the first wave of the covid-19 pandemic: Physical education teachers’ behaviors in france, italy and turkey
Gobbi E., Maltagliati S., Sarrazin P., Di Fronso S., Colangelo A., Cheval B., Escriva-Boulley G., Tessier D., Demirhan G., Erturan G., Yüksel Y., Papaioannou A., Bertollo M., Carraro A. (2020)The COVID-19 pandemic has drastically reduced physical activity (PA) behaviors of many people. Physical education (PE) is considered one of the privileged instruments to promote youths’ PA. We aimed to investigate the ...