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Re: Reproducibility, and Recommender Algorithms in Mahout - Mahout - [mail # user]
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...We have a class called SVDRecommender that takes a Factorizer as input. Each implementation of a Factorizer corresponds to an algorithm, we have biased matrix factorization, SVD++ and two di...
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Author: Sebastian Schelter,
2013-03-30, 16:08
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Re: Regarding ItemBased Recommendation Results - Mahout - [mail # user]
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...The Hadoop-based implementation samples down users with more than 1000 interactions by default, that could be the reason for the differences that you are seeing. On 28.03.2013 15:09, c...
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Author: Sebastian Schelter,
2013-03-28, 14:11
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Re: Number of Clustering MR-Jobs - Mahout - [mail # user]
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...Sebastian, For CPU-bound problems like matrix factorization with ALS, we have recently seen good results with multithreaded mappers, where we had the users specify the number of cores ...
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Author: Sebastian Schelter,
2013-03-28, 09:41
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Re: Number of Clustering MR-Jobs - Mahout - [mail # user]
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...It would also be very hard to do automatically, as clusters are shared and a framework cannot know how much of the shared resources (available map slots) it can take. On 28.03.2013 10:...
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Author: Sebastian Schelter,
2013-03-28, 09:22
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Re: svn commit: r1461422 - /mahout/trunk/CHANGELOG - Mahout - [mail # dev]
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...Hm, we could also have a look at this, but I thought a simple text file might be the most easy to use solution. On 28.03.2013 02:26, Benson Margulies wrote:...
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Author: Sebastian Schelter,
2013-03-28, 08:55
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[MAHOUT-1176] Introduce an Changelog file to raise contributors attribution - Mahout - [issue]
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...In response to the current discussion about raising attribution forcontributors, I suggest we introduce a CHANGELOG file similar to the oneused in GIRAPH. For every commit, we add a single l...
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http://issues.apache.org/jira/browse/MAHOUT-1176
Author: Sebastian Schelter,
2013-03-27, 08:47
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Re: Mahout Suggestions - Refactoring Effort - Mahout - [mail # dev]
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...Totally agree on that. The impact of making Mahout more usable is much higher than that of adding a new algorithm. On 27.03.2013 05:41, Ted Dunning wrote:...
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Author: Sebastian Schelter,
2013-03-27, 06:14
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Introduction of a changelog file to raise attribution - Mahout - [mail # dev]
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...In response to the current discussion about raising attribution for contributors, I suggest we introduce a CHANGELOG file similar to the one used in Giraph [1]. For every commit, we add a si...
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Author: Sebastian Schelter,
2013-03-26, 22:04
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Re: Mahout Suggestions - Refactoring Effort - Mahout - [mail # dev]
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...Hi Gokhan, I like the idea, but I'm not sure whether its completely feasible for all parts of Mahout. A lot of jobs need a little more than a matrix, for example an additional dictiona...
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Author: Sebastian Schelter,
2013-03-26, 21:56
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[MAHOUT-1173] Reactivate checkstyle - Mahout - [issue]
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...I would like to reactivate checkstyle in our build. IMHO we should not make it fail on checkstyle errors at the moment (anyone disagree on this?)....
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http://issues.apache.org/jira/browse/MAHOUT-1173
Author: Sebastian Schelter,
2013-03-26, 14:34
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