<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <!-- maintainer-needed --> <longdescription lang="en"> BACT is an implementation of [Kudo & Matsumoto 2004], and is designed to handle the tree classification problem. The important characteristic is that the input example x is represented not as a numerical feature vector (bag-of-words) but a labeled ordered tree. </longdescription> </pkgmetadata>