<?xml version="1.0" encoding="utf-8" ?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:r="https://r-universe.dev"><channel><title>thomasgrubinger-svg.r-universe.dev</title><link>https://thomasgrubinger-svg.r-universe.dev</link><description>Recent package updates in thomasgrubinger-svg</description><generator>R-universe</generator><image><url>https://github.com/thomasgrubinger-svg.png</url><title>R packages by thomasgrubinger-svg</title><link>https://thomasgrubinger-svg.r-universe.dev</link></image><lastBuildDate>Sun, 26 May 2019 18:40:04 GMT</lastBuildDate><item><title>[thomasgrubinger-svg] evtree 1.0-8</title><author>thomasgrubinger@gmail.com (Thomas Grubinger)</author><description>Commonly used classification and regression tree methods
like the CART algorithm are recursive partitioning methods that
build the model in a forward stepwise search. Although this
approach is known to be an efficient heuristic, the results of
recursive tree methods are only locally optimal, as splits are
chosen to maximize homogeneity at the next step only. An
alternative way to search over the parameter space of trees is
to use global optimization methods like evolutionary
algorithms. The 'evtree' package implements an evolutionary
algorithm for learning globally optimal classification and
regression trees in R. CPU and memory-intensive tasks are fully
computed in C++ while the 'partykit' package is leveraged to
represent the resulting trees in R, providing unified
infrastructure for summaries, visualizations, and predictions.</description><link>https://github.com/r-universe/thomasgrubinger-svg/actions/runs/27126432378</link><pubDate>Sun, 26 May 2019 18:40:04 GMT</pubDate><r:package>evtree</r:package><r:version>1.0-8</r:version><r:status>success</r:status><r:repository>https://thomasgrubinger-svg.r-universe.dev</r:repository><r:upstream>https://github.com/cran/evtree</r:upstream><r:article><r:source>evtree.Rnw</r:source><r:filename>evtree.pdf</r:filename><r:title>Evolutionary Learning of Globally Optimal Classification and Regression Trees in R</r:title><r:created>2012-04-11</r:created><r:modified>2019-05-26 18:40:04</r:modified></r:article></item></channel></rss>