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nondeterministic quartet tree search library for unrooted trees

qsearch is a library for universal hierarchical clustering using an arbitrary distance matrix as input. It searches through the space of all possible unrooted trees of a given size and finds the closest match based on a weighted quartet cost function determined by the distance matrix. When used in combination with other feature extraction libraries such as libcomplearn this system can be used for fast and accurate phylogenetic reconstruction, linguistic analysis, or stemmatology.
Package version:1.0.8-1


CompLearn 1.0

Welcome to CompLearn

an open-source data mining package using data compression

This software is released under the BSD license.

This package supports NCD and quartet tree search as documented at

Please see the website for more info!  Good luck with your experiments! :)

Quick Install

CompLearn requires the Gnu Scientific Libary, GSL, to


Mon, 05 Jun 2006 20:13:57 +0200


QSearch is a library for finding unrooted binary trees using the quartet
tree method.  It is documented online in several papers by
Cilibrasi and Vitanyi.

Written by Rudi Cilibrasi <> with help from many others.

First public Debian release


libqsearch (1.0.8-1) unstable; urgency=low

  * New upstream release.  Fixes bug related to new NCD matrix.

 -- Rudi Cilibrasi <>  Mon, 18 Feb 2008 09:22:20 -0800

libqsearch (1.0.7-2) unstable; urgency=low

  * Added libgomp1 to Depends because for some reason ${shlibs:Depends} does
    not seem to be including it in libqsearch-gomp1.  (Closes: #464080)

 -- Rudi Cilibrasi <ci


Rudi Cilibrasi, (initial versions, 2001-present)
Maarten Keijzer (core tree sc


The QSearch project thanks the following people for their help:
 * Dr. Paul Vitanyi for mathematical


This package was debianized by Rudi Cilibrasi <> on
Thu, 10 May 2007 10:16:32 +

Browse inside libqsearch-dev_1.0.8-1_amd64.deb

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