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user-based recommender <br/>in 5 minutes</a></li> + <li><a href="/users/recommender/matrix-factorization.html">Matrix factorization-based<br/> recommenders</a></li> + <li><a href="/users/recommender/recommender-documentation.html">Overview</a></li> + <li><a href="/users/recommender/intro-itembased-hadoop.html">Intro to item-based recommendations<br/> with Hadoop</a></li> + <li><a href="/users/recommender/intro-als-hadoop.html">Intro to ALS recommendations<br/> with Hadoop</a></li> + </ul> + </li> + <!-- <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Recommendations<b class="caret"></b></a> + <ul class="dropdown-menu"> + + </ul> --> + </li> + </ul> +</div><!--/.nav-collapse --> + </div> + </div> + </div> + +</div> + + <div id="sidebar"> + <div id="sidebar-wrap"> + <h2>Twitter</h2> + <ul class="sidemenu"> + <li> +<a class="twitter-timeline" href="https://twitter.com/ApacheMahout"; data-widget-id="422861673444028416">Tweets by @ApacheMahout</a> +<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+"://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script> +</li> + </ul> + <h2>Apache Software Foundation</h2> + <ul class="sidemenu"> + <li><a href="http://www.apache.org/foundation/how-it-works.html";>How the ASF works</a></li> + <li><a href="http://www.apache.org/foundation/getinvolved.html";>Get Involved</a></li> + <li><a href="http://www.apache.org/dev/";>Developer Resources</a></li> + <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> + <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks</a></li> + </ul> + <h2>Related Projects</h2> + <ul class="sidemenu"> + <li><a href="http://lucene.apache.org/";>Apache Lucene</a></li> + <li><a href="http://hadoop.apache.org/";>Apache Hadoop</a></li> + <li><a href="http://bigtop.apache.org/";>Apache Bigtop</a></li> + <li><a href="http://spark.apache.org/";>Apache Spark</a></li> + <li><a href="http://flink.apache.org/";>Apache Flink</a></li> + </ul> + </div> +</div> + + <div id="content-wrap" class="clearfix"> + <div id="main"> + + <h1>What is Apache Mahout?</h1> +<h2>The Apache Mahout⢠project's goal is to build an environment for quickly creating scalable performant machine learning applications. +</h2> +<div class="highlights"> + <a href="http://mahout.apache.org/general/downloads.html";><img src="http://mahout.apache.org/images/download-mahout.png"; /></a> + <h4>Latest release version 0.12.2 has</h4> + <h6>Apache Mahout Samsara Environment includes</h6> + <ul> + <li>Distributed Algebraic optimizer</li> + <li>R-Like DSL Scala API</li> + <li>Linear algebra operations</li> + <li>Ops are extensions to Scala</li> + <li>IScala REPL based interactive shell</li> + <li>Integrates with compatible libraries like MLLib</li> + <li>Runs on distributed Spark, H2O, and Flink</li> + <li>fastutil to speed up sparse matrix and vector computations</li> + <li>Matrix to tsv conversions for integration with Apache Zeppelin</li> + </ul> + <h6>Apache Mahout Samsara Algorithms included</h6> + <ul> + <li>Stochastic Singular Value Decomposition (ssvd, dssvd)</li> + <li>Stochastic Principal Component Analysis (spca, dspca)</li> + <li>Distributed Cholesky QR (thinQR) </li> + <li>Distributed regularized Alternating Least Squares (dals)</li> + <li>Collaborative Filtering: Item and Row Similarity</li> + <li>Naive Bayes Classification</li> + <li>Distributed and in-core</li> + </ul> + </div> + +<p>**Apache Mahout software** provides three major features:</p> +<div class="highlighter-rouge"><pre class="highlight"><code><ul> + <li>A simple and extensible programming environment and framework for building scalable algorithms</li> + <li>A wide variety of premade algorithms for Scala + Apache Spark, H2O, Apache Flink</li> + <li>Samsara, a vector math experimentation environment with R-like syntax which works at scale</li> +</ul> +</code></pre> +</div> +<p>Read an [Overview of programming a Mahout Samsara Application][1], +learn [How To Contribute to Mahout][2], +[report an issue, bug, or suggestion][3] in our JIRA, +see the [Samsara bindings for Scala and Spark][4], +and [contact us on our mailing lists][5]. +</p> +<h4>**13 Jun 2016 - Apache Mahout 0.12.2 released**</h4> +<p> +Mahout 0.12.2 is a minor release following 0.12.1 that provides Matrix exports for Apache Zeppelin integration along with a few minor bug fixes and dependency upgrades. +</p> + +<h4>**19 May 2016 - "Visualizing Apache Mahout in R via Apache Zeppelin" posted**</h4> +<p>A tutorial on connecting Mahout, R, Spark, and Zeppelin by <a href="https://trevorgrant.org/2016/05/19/visualizing-apache-mahout-in-r-via-apache-zeppelin-incubating"; target="_blank">Trevor Grant</a> showing how to plot results in Apache Zeppelin.</p> +<h4>**18 May 2016 - Apache Mahout 0.12.1 released**</h4> +<p> +Mahout 0.12.1 is a minor release following 0.12.0 that fixes issues in the newly added Flink backend and supports Flink 1.0.3. +</p> + +<h4>**11 Apr 2016 - Apache Mahout 0.12.0 released**</h4> +<p> +The Mahout 0.12.0 release marks a major milestone for the âSamsaraâ environmentâs goal of providing an engine neutral math platform by now supporting Flink. While still experimental, the mahout Flink bindings now offer all of the R-Like semantics for linear algebra operations, matrix decompositions, and algorithms of the âSamsaraâ platform for execution on a Flink back-end. +</p> + +<h4>**12 Mar 2016 - Apache Mahout 0.11.2 released**</h4> +<p>**Apache Mahout introduces a new math environment called** [**Samsara**](http://mahout.apache.org/users/sparkbindings/home.html), + for its theme of universal renewal. It reflects a fundamental rethinking of how scalable machine learning + algorithms are built and customized. Mahout-Samsara is here to help people create their own math while providing + some off-the-shelf algorithm implementations. At its core are general linear algebra and statistical operations + along with the data structures to support them. You can use is as a library or customize it in Scala with Mahout-specific extensions + that look something like R. + Mahout-Samsara comes with an interactive shell that runs distributed operations on an Apache Spark cluster. + This make prototyping or task submission much easier and allows users to customize algorithms with + a whole new degree of freedom.</p> + +<p>[**Mahout Algorithms**](http://mahout.apache.org/users/basics/algorithms.html) include many new + implementations built for speed on Mahout-Samsara. They run on Spark 1.3+, Flink 1.0.1, and some on H2O, which means as + much as a 10x speed increase. Youâll find robust matrix decomposition algorithms as well as a **[Naive Bayes][6]** + classifier and collaborative filtering. The new spark-itemsimilarity enables the next generation of **[cooccurrence + recommenders][7]** that can use entire user click streams and context in making recommendations.</p> + +<p>Our [release notes](http://mahout.apache.org/general/release-notes.html) have details. Interested in helping? Join the <a href="https://mahout.apache.org/general/mailing-lists,-irc-and-archives.html";>Mailing lists</a>.</p> + +<h1 id="mahout-news">Mahout News</h1> + +<h4 id="13-june-2016---apache-mahout-0122-released">13 June 2016 - Apache Mahout 0.12.2 released</h4> + +<h4 id="18-may-2016---apache-mahout-0121-released">18 May 2016 - Apache Mahout 0.12.1 released</h4> + +<h4 id="11-april-2016---apache-mahout-0120-released">11 April 2016 - Apache Mahout 0.12.0 released</h4> + +<h4 id="12-march-2016---apache-mahout-0112-released">12 March 2016 - Apache Mahout 0.11.2 released</h4> + +<h4 id="23-february-2016---new-apache-mahout-book---apache-mahout-beyond-mapreduce-by-dlyubimov-and-apalumbo-released-see-a-hrefhttpwwwweatheringthroughtechdayscom201602mahout-samsara-book-is-outhtmlamahout-samsara-book-is-out">23 February 2016 - New Apache Mahout Book - âApache Mahout: Beyond MapReduceâ by D.Lyubimov and A.Palumbo released. See <a href=âhttp://www.weatheringthroughtechdays.com/2016/02/mahout-samsara-book-is-out.htmlâ</a>Mahout âSamsaraâ Book Is Out</h4> +<h4 id="6-november-2015---apache-mahout-0111-released">6 November 2015 - Apache Mahout 0.11.1 released</h4> + +<h4 id="7-august-2015---apache-mahout-0110-released">7 August 2015 - Apache Mahout 0.11.0 released</h4> + +<h4 id="6-august-2015---apache-mahout-0102-released">6 August 2015 - Apache Mahout 0.10.2 released</h4> + +<h4 id="31-may-2015---apache-mahout-0101-released">31 May 2015 - Apache Mahout 0.10.1 released</h4> + +<h4 id="11-april-2015---apache-mahout-0100-released">11 April 2015 - Apache Mahout 0.10.0 released</h4> + +<h4 id="1-february-2014---apache-mahout-09-released">1 February 2014 - Apache Mahout 0.9 released</h4> + +<p>Visit our <a href="http://svn.apache.org/viewvc/mahout/trunk/CHANGELOG?view=markup&pathrev=1563661";>release notes</a> page for details.</p> + +<p>####25 July 2013 - Apache Mahout 0.8 released</p> + +<p>Visit our <a href="http://mahout.apache.org/general/release-notes.html";>release notes</a> page for details.</p> + +<h4 id="16-june-2012---apache-mahout-07-released">16 June 2012 - Apache Mahout 0.7 released</h4> + +<p>Visit our <a href="http://mahout.apache.org/general/release-notes.html";>release notes</a> page for details.</p> + +<h4 id="6-feb-2012---apache-mahout-06-released">6 Feb 2012 - Apache Mahout 0.6 released</h4> + +<p>Visit our <a href="http://mahout.apache.org/general/release-notes.html";>release notes</a> page for details.</p> + +<h4 id="9-oct-2011---mahout-in-action-released">9 Oct 2011 - Mahout in Action released</h4> + +<p>The book <em>Mahout in Action</em> is available in print. Sean Owen, Robin Anil, Ted Dunning and Ellen Friedman thank the community (especially those who were reviewers) for input during the process and hope it is enjoyable.</p> + +<p>Find <em>Mahout in Action</em> at your favorite bookstore, or <a href="http://manning.com/owen/";>order print and eBook copies from Manning</a> â use discount code âmahout37â for 37% off.</p> + + + </div> + </div> +</div> + <footer class="footer" align="center"> + <div class="container"> + <p> + Copyright © 2014-2016 The Apache Software Foundation, Licensed under + the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache License, Version 2.0</a>. + <br /> + Apache Mahout, Mahout, Apache, the Apache feather logo, and the elephant rider logo are either registered trademarks or trademarks of <a href="http://www.apache.org/foundation/marks/";>The Apache Software Foundation</a> in the United States and other countries. + </p> + </div> + </footer> + + <script src="/assets/themes/mahout-retro/js/jquery-1.9.1.min.js"></script> + <script src="/assets/themes/mahout-retro/js/bootstrap.min.js"></script> + <script> + (function() { + var cx = '012254517474945470291:vhsfv7eokdc'; + var gcse = document.createElement('script'); + gcse.type = 'text/javascript'; + gcse.async = true; + gcse.src = (document.location.protocol == 'https:' ? 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