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[ANNOUNCE] Andrew Musselman, New Mahout PMC Chair - Mahout - [mail # user]
...Congrats!2018-07-19 9:31 GMT+02:00 Peng Zhang :> Congrats Andrew!>> On Thu, Jul 19, 2018 at 04:01 Andrew Musselman <[EMAIL PROTECTED]> >> wrote:>> > Thanks Andy...
   Author: Sebastian Schelter , 2018-07-19, 08:24
A few questions regarding content-based recommenders - Mahout - [mail # user]
...There are two places in the code that make implementing content-based recommendation with a custom ItemSimilarity very difficult. I ran into these unknowingly some time ago.  AFAIK, the...
   Author: Sebastian Schelter , 2010-12-31, 08:22
[expand - 2 more] - itemsimilarity - Mahout - [mail # user]
...Hi Ricardo,  Mahout's jobs need a temporary directory for intermediate files. If you don't supply a path for that, they will create a temp folder in the directory where you started the ...
   Author: Sebastian Schelter , 2011-01-02, 09:27
[expand - 1 more] - recommendations with Hadoop and RecommenderJob in Amazon EC2, suggestions for performance? - Mahout - [mail # user]
...Hi Stefano, happy new year too!  The running time of RecommenderJob is neither proportional to the number of users you wanna compute recommendations for nor to the number of recommendat...
   Author: Sebastian Schelter , 2011-01-02, 10:08
[mahout-user] Recommendation engine to support a LAMP application - Mahout - [mail # user]
...Hello Jose,  I think Mahout has everything you need. All you have to do is to record user-item interactions after which you can use one of our many recommender implementations. If you w...
   Author: Sebastian Schelter , 2010-12-07, 20:20
[expand - 3 more] - HELP for implicit data feed back - beginner - Mahout - [mail # user]
...Hi Antony,  I would start with a simple approach: extract all customerID,itemID tuples from the orders table and use them as your input data. How many of those do you have? The datasize...
   Author: Sebastian Schelter , 2013-11-22, 18:43
Fwd: Algorithms in Mahout - Mahout - [mail # user]
...>From the algorithms listed, only logistic regression (non-distributed) is implemented.  Sorry, for the confusion, we are currently reworking the wiki.  On 25.11.2013 10:24, Pav...
   Author: Sebastian Schelter , 2013-11-25, 09:29
[expand - 1 more] - factorize-movielens-1M.sh privilegedActionException: reports dir doesn't exist when it does exist - Mahout - [mail # user]
...The example should work, I tested it yesterday. The simplest way to execute it is to first build mahout using  $ mvn -DskipTests clean install  Then download the movielens1M datase...
   Author: Sebastian Schelter , 2013-01-18, 23:43
[expand - 2 more] - Parallel ALS-WR on very large matrix -- crashing (I think) - Mahout - [mail # user]
...Nicholas,  can you give us the detailed arguments you start the job with? I'd especially be interested in the number of features (--numFeatures) you use. Do you use the job with implici...
   Author: Sebastian Schelter , 2012-02-02, 09:47
[expand - 4 more] - Question on RowSimilarityJob - Mahout - [mail # user]
...The heart of RowSimilarityJob is simple cooccurrence counting (with some tweaks and optimizations). I'll give a simplified example:  We have a 3x3 matrix (could represent items rated by...
   Author: Sebastian Schelter , 2012-02-02, 13:08