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	<title>Spectrally Clustered</title>
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	<description>in the direction of greatest variance</description>
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		<title>Spectrally Clustered</title>
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		<title>2012: Lots of work to be done</title>
		<link>http://spectrallyclustered.wordpress.com/2012/01/04/2012-lots-of-work-to-be-done/</link>
		<comments>http://spectrallyclustered.wordpress.com/2012/01/04/2012-lots-of-work-to-be-done/#comments</comments>
		<pubDate>Wed, 04 Jan 2012 18:40:08 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[Graduate School]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[Spectral Clustering]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=114</guid>
		<description><![CDATA[Since the world is going to be ending on the 21st of December anyway, we&#8217;d better use our remaining time efficiently! ApacheCon NA 2011 I spent the fall months preparing for this year&#8217;s rendition of ApacheCon NA, held in Vancouver, BC in the first week of November. As always, Apache and their sponsors set up [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=114&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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			<media:title type="html">magsol</media:title>
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		<item>
		<title>PhD progress, ApacheCon 2011</title>
		<link>http://spectrallyclustered.wordpress.com/2011/10/20/phd-progress-apachecon-2011/</link>
		<comments>http://spectrallyclustered.wordpress.com/2011/10/20/phd-progress-apachecon-2011/#comments</comments>
		<pubDate>Thu, 20 Oct 2011 15:16:19 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Graduate School]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=108</guid>
		<description><![CDATA[There&#8217;s been a lengthy pause in my updates here, but not for lack of progress on the ground. Here&#8217;s what I&#8217;ve been up to since my last post in March: Finishing up core courses in the spring, and presenting at my first conference. The first year of PhD work is remarkably unproductive in terms of [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=108&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<title>Mahout committer, Ph.D. thesis</title>
		<link>http://spectrallyclustered.wordpress.com/2011/03/11/mahout-committer-ph-d-thesis/</link>
		<comments>http://spectrallyclustered.wordpress.com/2011/03/11/mahout-committer-ph-d-thesis/#comments</comments>
		<pubDate>Fri, 11 Mar 2011 17:50:33 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[Graduate School]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[K-means]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Spectral Clustering]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=102</guid>
		<description><![CDATA[Been awhile, and I apologize for that: the obligations of a first-year Ph.D. student are not trivial. However, I am only a week away from the conclusion of my final rotation, which means a transition to full-time thesis advisorship is imminent. Furthermore, my core classes will be completed at the conclusion of this semester, leaving [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=102&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>2</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<title>DistributedRowMatrix overhaul</title>
		<link>http://spectrallyclustered.wordpress.com/2011/01/06/distributedrowmatrix-overhaul/</link>
		<comments>http://spectrallyclustered.wordpress.com/2011/01/06/distributedrowmatrix-overhaul/#comments</comments>
		<pubDate>Thu, 06 Jan 2011 15:37:00 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=98</guid>
		<description><![CDATA[I&#8217;ve spent the past few days of my holiday break working on bringing Mahout&#8217;s DistributedRowMatrix into compliance with Hadoop 0.20.2 (where it currently implements 0.18). This comes with an interesting caveat, given that &#8211; for whatever reason &#8211; version 0.20 does not have the CompositeInputFormat that allows for joins to be performed on the data. [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=98&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<title>Mahout and Graduate School</title>
		<link>http://spectrallyclustered.wordpress.com/2010/10/22/mahout-and-graduate-school/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/10/22/mahout-and-graduate-school/#comments</comments>
		<pubDate>Fri, 22 Oct 2010 02:50:12 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[Graduate School]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Spectral Clustering]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=94</guid>
		<description><![CDATA[It&#8217;s been a few months and I&#8217;ve settled into my new role as a Ph.D. student (for the most part). I&#8217;ve become exponentially more busy, what with a full course load and rotations as well at the CMU-UPitt Joint Computational Biology program. However, I am committed to staying active in and contributing to the Mahout [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=94&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<item>
		<title>GSoC 2010 Wrap-up</title>
		<link>http://spectrallyclustered.wordpress.com/2010/08/23/gsoc-2010-wrap-up/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/08/23/gsoc-2010-wrap-up/#comments</comments>
		<pubDate>Mon, 23 Aug 2010 20:44:46 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[K-means]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=90</guid>
		<description><![CDATA[The completion date for GSoC 2010 has come and gone, and while bug fixes and tweaks are still incoming on the Eigencuts project, the timeline for this summer is over. In short: that&#8217;s all, folks. Here is a basic summary of points regarding the final product: There are effectively two spectral algorithms packaged together: spectral [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=90&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://spectrallyclustered.wordpress.com/2010/08/23/gsoc-2010-wrap-up/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<item>
		<title>Sprint 4: Map/Reduce over two SequenceFiles</title>
		<link>http://spectrallyclustered.wordpress.com/2010/08/03/sprint-4-mapreduce-over-two-sequencefiles/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/08/03/sprint-4-mapreduce-over-two-sequencefiles/#comments</comments>
		<pubDate>Tue, 03 Aug 2010 03:08:23 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=85</guid>
		<description><![CDATA[This is the final roadblock, and unfortunately it doesn&#8217;t appear to be a trivial problem to solve. In my final map/reduce task, I have two matrices: the affinity matrix A, and the &#8220;cut&#8221; matrix S. The affinity matrix is a model for the underlying graph structure of the data; as mentioned here in previous entries, [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=85&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://spectrallyclustered.wordpress.com/2010/08/03/sprint-4-mapreduce-over-two-sequencefiles/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<item>
		<title>Sprint 4: Closing in</title>
		<link>http://spectrallyclustered.wordpress.com/2010/07/27/sprint-4-closing-in/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/07/27/sprint-4-closing-in/#comments</comments>
		<pubDate>Tue, 27 Jul 2010 22:51:51 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=83</guid>
		<description><![CDATA[We&#8217;re still a few weeks out from the official conclusion of GSoC, but the end of this project is arguably even closer (provided I stick to the remaining schedule). There are only a handful of concrete tasks remaining. Document, document, document Probably the most important remaining task &#8211; I need to start transferring data from [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=83&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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		<title>Sprint 3: Three last M/R tasks</title>
		<link>http://spectrallyclustered.wordpress.com/2010/07/15/sprint-3-three-last-mr-tasks/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/07/15/sprint-3-three-last-mr-tasks/#comments</comments>
		<pubDate>Thu, 15 Jul 2010 23:56:56 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[Hadoop]]></category>
		<category><![CDATA[Issues]]></category>
		<category><![CDATA[Mahout]]></category>
		<category><![CDATA[Maths]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=79</guid>
		<description><![CDATA[I mentioned in my previous post the fact that I had three more M/R tasks (at most) to implement in my current algorithm. In attempting to implement these, I have run into a problem of data representation: how I get the needed inputs to the M/R jobs, and how do I represent the outputs? Let&#8217;s [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=79&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://spectrallyclustered.wordpress.com/2010/07/15/sprint-3-three-last-mr-tasks/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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			<media:title type="html">sensitivityequation</media:title>
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		<item>
		<title>Sprint 3: Quick Update</title>
		<link>http://spectrallyclustered.wordpress.com/2010/07/14/sprint-3-quick-update/</link>
		<comments>http://spectrallyclustered.wordpress.com/2010/07/14/sprint-3-quick-update/#comments</comments>
		<pubDate>Wed, 14 Jul 2010 14:11:44 +0000</pubDate>
		<dc:creator>magsol</dc:creator>
				<category><![CDATA[Algorithms]]></category>
		<category><![CDATA[EigenCuts]]></category>
		<category><![CDATA[GSoC 2010]]></category>
		<category><![CDATA[K-means]]></category>
		<category><![CDATA[Spectral Clustering]]></category>

		<guid isPermaLink="false">http://spectrallyclustered.wordpress.com/?p=74</guid>
		<description><![CDATA[I&#8217;m still eyeball-deep in sprint 3 (and rapidly running short on time), but I wanted to make an update about my latest developments. First and foremost, I have finally quashed the issue of bad affinity matrices. I did, however, discover a slight bug in the sprint 1-2 algorithm code itself: I forgot I had set [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=spectrallyclustered.wordpress.com&amp;blog=13879970&amp;post=74&amp;subd=spectrallyclustered&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>8</slash:comments>
	
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			<media:title type="html">magsol</media:title>
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			<media:title type="html">clusters</media:title>
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			<media:title type="html">eigenvectors</media:title>
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