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Re: Build failed in Jenkins: Mahout-Examples-Cluster-Reuters #185 - Mahout - [mail # dev]
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... On Sun, Aug 26, 2012 at 1:03 AM, Apache Jenkins Server wrote: Lance Norskog [EMAIL PROTECTED]...
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Author: Lance Norskog,
2012-08-26, 19:25
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Re: Can someone suggest an approach for calculating precision and recall for distributed recommendations? - Mahout - [mail # user]
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...Behavior is a much better basis for recommendation than user ratings. Raters are self-selected. If you can track whether someone actually watches the video, that is gold data. There is...
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Author: Lance Norskog,
2012-08-26, 19:23
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Re: problem with dependencies - Mahout - [mail # dev]
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...Parametered.configure() and createParameters.() take a Hadoop jobConf object. Really. Parametered->DistanceMeasure-> org.apache.mahout.common.distance.MahalanobisDistanceMe...
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Author: Lance Norskog,
2012-08-19, 03:10
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Re: problem with dependencies - Mahout - [mail # dev]
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...Or factory objects? On Sat, Aug 18, 2012 at 2:07 PM, Ted Dunning wrote: Lance Norskog [EMAIL PROTECTED]...
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Author: Lance Norskog,
2012-08-18, 22:06
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Re: Understanding Mahout KMeans - Mahout - [mail # user]
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...It is possible to run the M/R jobs inside Eclipse or another IDE with small datasets. I learned a lot from single-stepping through some of the more complex code. On Wed, Aug 15, 2012 a...
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Author: Lance Norskog,
2012-08-16, 00:50
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Re: Connector error - Mahout - [mail # user]
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...You want the hadoop/chukwa list, not mahout. On Mon, Aug 13, 2012 at 6:41 AM, mason deng wrote: Lance Norskog [EMAIL PROTECTED]...
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Author: Lance Norskog,
2012-08-13, 20:23
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Re: How good recommendations and precision works - Mahout - [mail # user]
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...MRR (Mean Reciprocal Rank) is a more realistic version of the same thing: first on the list counts as one, second on the list counts as 1/2, third on the list counts as 1/3 down to 5. This t...
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Author: Lance Norskog,
2012-08-09, 21:54
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Re: error in Mahout 0.4 - Mahout - [mail # dev]
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...WIndows works fine, but requires a few hacks for Hadoop to work, because Hadoop insists on doing file system operations which it does not need to. But if you can run a Linux virtual machine ...
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Author: Lance Norskog,
2012-08-09, 01:44
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Re: KMeans job fails during 2nd iteration. Java Heap space - Mahout - [mail # user]
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...If Zipf's Law is relevant, locality will be much better than random. Maybe you need a Vector implementation that is backed by memory-mapped files? On Wed, Aug 8, 2012 at 12:26 PM, Abra...
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Author: Lance Norskog,
2012-08-09, 01:43
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Re: Tags generation? - Mahout - [mail # user]
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...I used the OpenNLP Parts-Of-Speech tool to label all words as 'noun', 'verb', etc. I removed all words that were not nouns or verbs. In my use case, this is a total win. In other cases, mayb...
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Author: Lance Norskog,
2012-08-07, 01:19
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