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Questions on Yahoo LDA - Mahout - [mail # user]
...I don't know if anyone here knows much about the particulars of where the output or code for writing it goes, in Y_LDA.  Don't they have their own discussion group or mailing list you c...
   Author: Jake Mannix , 2012-02-01, 18:55
[expand - 4 more] - Interpretating doc-topic output of cvb - Mahout - [mail # user]
...There was a bug in Mahout 0.7 regarding the doc/topic outputs, can you try your little test on trunk, and see if you get a more sensible / interpretable result?   On Thu, Jun 20, 2013 a...
   Author: Jake Mannix , 2013-06-21, 02:18
[expand - 2 more] - LDA/CVB Performance - Mahout - [mail # user]
...I'm not sure that the multithreaded trainer actually works very well, sadly.  In my tests, I've never really been able to get it to churn through much faster than with just one thread, ...
   Author: Jake Mannix , 2013-06-13, 21:29
LDA dictionary file - Mahout - [mail # user]
...SequenceFile (or maybe the reverse?)  On Wed, Nov 23, 2011 at 3:31 PM, Mohammed Al khooja wrote:  > Hi, > > What is the structure of the dictionary file that result from s...
   Author: Jake Mannix , 2011-11-23, 23:32
[expand - 1 more] - Yahoo's LDA code - Mahout - [mail # user]
...It's all c++, custom distributed processing, custom distributed coordination and storage.  We can certainly try to port over the algorithmic ideas, but the distributed systems stuff wou...
   Author: Jake Mannix , 2011-06-10, 04:49
mahouts' svd - Mahout - [mail # user]
...>> org.apache.mahout.math.CardinalityException: Required cardinality 50 but got 5  apparently your rows are of size 50, not 5?    -jake  On Thu, Jun 16, 2011 at 3:1...
   Author: Jake Mannix , 2011-06-16, 22:37
Comparing results of Mahout SVD and Scilab - Mahout - [mail # user]
...The output from the LanczosSolver is not the final set of results.  The fact that you passed --cleansvd "true" to the system means that you want it to do some cleanup and remove any spu...
   Author: Jake Mannix , 2011-11-08, 18:04
Mahout and multi-label classification - Mahout - [mail # user]
...On Tue, Nov 8, 2011 at 4:35 AM, Ted Dunning  wrote:  > The practical techniques for such problems are pretty diverse. > > One method is to simply define multiple binary cl...
   Author: Jake Mannix , 2011-11-08, 18:07
[expand - 2 more] - lsi - Mahout - [mail # user]
...Store the vectors as binary payloads and keep the projection matrix in memory with the qureryBuilder, to add an "lsi cosine" between query and doc scoring feature?  On Nov 13, 2011 12:5...
   Author: Jake Mannix , 2011-11-13, 23:56
[expand - 2 more] - Multi-file Matrices? - Mahout - [mail # user]
...Yeah, in particular, DistributedRowMatrix "is" simply a SequenceFile, when in its serialized form.  As such, this "file" can be (and typically is) a series of part-* files in a director...
   Author: Jake Mannix , 2011-11-14, 06:34