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<h1>Joshua Machine Translation Toolkit</h1>
<p>
<b>Stable version</b>: 6.0 (Released 1 November 2014)
</p>
<span id="download">
<a href="http://joshua-decoder.org/downloads/joshua-6.0.tgz">Download</a>
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<p>
Joshua is an open-source statistical machine translation decoder for hierarchical and
syntax-based machine translation, written in Java. It is developed as a research
collaboration between the <a href="http://hltcoe.jhu.edu/">Human Language Technology
Center of Excellence</a> at Johns Hopkins University
and <a href="http://www.cs.jhu.edu/~ccb/">Chris Callison-Burch</a>'s research group at
the <a href="http://www.cis.upenn.edu">University of Pennsylvania</a>.
</p>
<h2 id="support">What's New in 6.0</h2>
<p>
<ul>
<li>Joshua now contains <a href="whatsnew.html#phrase">
a fast phrase-based decoder</a>, in addition to its
syntax-based and hierarchical components
<li>Lots more documentation, including overviews of the
main components of Joshua, typical use cases
</ul>
</p>
<h2 id="support">Technical Support</h2>
<p>
Support is provided in two
forms: <a href="https://groups.google.com/forum/#!forum/joshua_support">Technical
support</a> for end-users of Joshua,
and <a href="https://groups.google.com/forum/#!forum/joshua_developers">Developer
support</a> for contributors.
</p>
<h2 id="contributors">Contributors</h2>
<p>
Joshua was originally ported from <a href="http://www.isi.edu/~chiang/">David Chiang's</a>
Python implementation of Hiero by <a href="http://www.cs.jhu.edu/~zfli/">Zhifei Li</a>.
Since then, there have been a number of contributors to the project (listed here in
alphabetical order).
<ul>
<li><a href="http://www.cs.cmu.edu/~aphillips/">Aaron Phillips</a> (Carnegie Mellon)</li>
<li><a href="http://www.eecs.berkeley.edu/~adpauls/">Adam Pauls</a> (Berkeley)</li>
<li><a href="http://cs.jhu.edu/~ccb/">Chris Callison-Burch</a> (Penn)</li>
<li><a href="http://www.cs.cmu.edu/~cdyer/">Chris Dyer</a> (Carnegie Mellon)</li>
<li><a href="http://comp.ling.utexas.edu/~bannard/">Colin Bannard</a> (UT Austin)</li>
<li><a href="http://cs.jhu.edu/~jonny/">Jonathan Weese</a> (Johns Hopkins)</li>
<li>Josh Schroeder (Edinburgh)</li>
<li><a href="http://cs.jhu.edu/~juri/">Juri Ganitkevitch</a> (Johns Hopkins)</li>
<li><a href="http://kheafield.com/">Kenneth Heafield</a> (Carnegie Mellon)</li>
<li><a href="http://dowobeha.github.com">Lane Schwartz</a> (Minnesota)</li>
<li><a href="https://plus.google.com/107547504293849335564">Luke</a> <a href="https://github.com/lukeorland">Orland</a> (Johns Hopkins)</li>
<li><a href="http://cs.jhu.edu/~post/">Matt Post</a> (Johns Hopkins)</li>
<li><a href="http://cs.jhu.edu/~ozaidan/">Omar F. Zaidan</a> (Johns Hopkins)</li>
<li><a href="http://llama.freegeek.org/~wren/research.html">Wren Ng Thornton</a> (Indiana University)</li>
<li>Yuan Cao (Johns Hopkins)</li>
</ul>
Please email if you know of anyone who has been left off this list.
</p>
<h2>Version history</h2>
<p>
The latest version of Joshua is version 6.0.
<!-- Its changes are described in the paper -->
</p>
<!--
<blockquote>
<a href="http://aclweb.org/anthology-new/W/W13//W13-2226.pdf">Joshua
5.0: Sparser, better, faster, server</a>
<a class="bibtex" href="http://aclweb.org/anthology/W/W13/W13-2226.bib">BibTeX</a> <br />
Matt Post, Juri Ganitkevitch, Luke Orland, Jonathan Weese, Yuan Cao, and Chris
Callison-Burch<br />
<a href="http://statmt.org/wmt13/">WMT 2013</a>. Sofia, Bulgaria. August.<br/>
</blockquote>
-->
<p>
You might also be interested in older papers describing Joshua
<a href="http://aclweb.org/anthology/W/W09/W09-0424.pdf">1.0</a>,
<a href="http://aclweb.org/anthology-new/P/P09/P09-4007.pdf">the Joshua demo paper</a>,
<a href="http://aclweb.org/anthology-new/W/W10/W10-1718.pdf">2.0</a>,
<a href="http://aclweb.org/anthology-new/W/W11/W11-2160.pdf">3.0</a>,
<a href="http://aclweb.org/anthology-new/W/W12/W12-3134.pdf">4.0</a>, and
<a href="http://aclweb.org/anthology-new/W/W13/W13-2226.pdf">5.0</a>.
</p>
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<h2 id="sponsors">Acknowledgments</h2>
We gratefully acknowledge support provided by the following institutions.
<div>
<a href="http://darpa.mil/">
<img class="sponsor" alt="DARPA logo" src="images/sponsors/darpa-logo.jpg" />
</a>
<a href="http://nsf.gov/">
<img class="sponsor" alt="NSF logo" src="images/sponsors/NSF-logo.jpg" />
</a>
<a href="http://www.euromatrixplus.org/">
<img class="sponsor" alt="EuroMatrix+" src="images/sponsors/euromatrix.png" />
</a>
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<a href="http://hltcoe.jhu.edu">
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style="width: 240px"
src="images/sponsors/hltcoe-logo3.png" />
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