<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Symmetry Functions | QTCOVI – Theoretical and Computational Chemistry</title><link>https://qtcovi.github.io/tag/symmetry-functions/</link><atom:link href="https://qtcovi.github.io/tag/symmetry-functions/index.xml" rel="self" type="application/rss+xml"/><description>Symmetry Functions</description><generator>Hugo Blox Builder (https://hugoblox.com)</generator><language>en-us</language><lastBuildDate>Mon, 01 Jan 2024 00:00:00 +0000</lastBuildDate><image><url>https://qtcovi.github.io/media/icon_hu11734318148517933569.png</url><title>Symmetry Functions</title><link>https://qtcovi.github.io/tag/symmetry-functions/</link></image><item><title>MM2SF</title><link>https://qtcovi.github.io/software/mm2sf/</link><pubDate>Mon, 01 Jan 2024 00:00:00 +0000</pubDate><guid>https://qtcovi.github.io/software/mm2sf/</guid><description>&lt;h2 id="about">About&lt;/h2>
&lt;p>&lt;strong>MM2SF&lt;/strong> automatically generates optimised Atom-Centred Symmetry Functions (ACSFs) for use as descriptors in neural network interatomic potentials. Given a molecular dynamics trajectory or normal-mode sampling, it applies a Gaussian Mixture Model (GMM) to decompose the chemical space into well-defined clusters, then selects symmetry function parameters that accurately describe each region.&lt;/p>
&lt;p>Supported symmetry function types:&lt;/p>
&lt;ul>
&lt;li>&lt;strong>Two-body (radial)&lt;/strong> — &lt;em>G&lt;/em>&lt;sup>rad&lt;/sup>&lt;/li>
&lt;li>&lt;strong>Three-body (angular)&lt;/strong> — &lt;em>G&lt;/em>&lt;sup>ang&lt;/sup> (modified functional form)&lt;/li>
&lt;/ul>
&lt;h2 id="installation">Installation&lt;/h2>
&lt;div class="highlight">&lt;pre tabindex="0" class="chroma">&lt;code class="language-bash" data-lang="bash">&lt;span class="line">&lt;span class="cl">pip install git+https://github.com/m-gallegos/MM2SF.git
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>Or from a downloaded zip:&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" class="chroma">&lt;code class="language-bash" data-lang="bash">&lt;span class="line">&lt;span class="cl">pip install MM2SF-main.zip
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;h2 id="links">Links&lt;/h2>
&lt;ul>
&lt;li>&lt;a href="https://github.com/QTCOVI/MM2SF" target="_blank" rel="noopener">GitHub repository&lt;/a>&lt;/li>
&lt;/ul></description></item></channel></rss>