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[expand - 1 more] - Classifying documents in database - Mahout - [mail # user]
...No.  There are no specific examples describing classification against a database.  On Mon, Nov 14, 2011 at 8:03 AM, Sam Cunningham wrote:  > Thanks for your answer, Ted. An...
   Author: Ted Dunning , 2011-11-14, 16:59
[expand - 4 more] - lsi - Mahout - [mail # user]
...It is really hard to answer that.  I would guess that it would be hard to get much gain for uniformly distributed points in reasonably high dimensional spaces (> 100 or so).  LS...
   Author: Ted Dunning , 2011-11-15, 05:28
Mahout session at hadoop world 2011 - Mahout - [mail # user]
...Bummer that I couldn't be there.  I am in town, but had to meet with customers during all the talks.  On Tue, Nov 8, 2011 at 4:24 PM,  wrote:  > Team > I saw a pres...
   Author: Ted Dunning , 2011-11-09, 06:00
[expand - 3 more] - Mahout and multi-label classification - Mahout - [mail # user]
...On Tue, Nov 8, 2011 at 1:07 PM, Jake Mannix  wrote:  > On Tue, Nov 8, 2011 at 4:35 AM, Ted Dunning  wrote: > > > The practical techniques for such problems are pre...
   Author: Ted Dunning , 2011-11-09, 06:08
Order-based evalution of recommenders - Mahout - [mail # user]
...AUC is the standard measure here.  Since it is essentially identical to Wilcoxon's test or the Mann-Whitney test, there is a long pedigree.  Computing it from list order is pretty ...
   Author: Ted Dunning , 2010-10-31, 03:45
[expand - 1 more] - Design Question - Mahout - [mail # user]
...There is no direct support for this in Mahout, but some of the underpinnings are there.  One thought that I have is that the data involved in these processes are not usually massive and...
   Author: Ted Dunning , 2010-10-31, 20:30
[expand - 1 more] - Multi-file Matrices? - Mahout - [mail # user]
...Make sure that the files can be ordered, of course.  Losing the ordering can be really bad.  On Sun, Nov 13, 2011 at 10:34 PM, Jake Mannix  wrote:  > Yeah, in particul...
   Author: Ted Dunning , 2011-11-14, 06:38
clustering hardware requirements - Mahout - [mail # user]
...It is a great idea except that the centroids become harder to interpret.  Not much harder.  Just a bit harder.  On Fri, Nov 18, 2011 at 9:44 AM, Grant Ingersoll wrote:  &...
   Author: Ted Dunning , 2011-11-18, 18:04
How to do logistic regression by mahout? - Mahout - [mail # user]
...The last third of the Mahout in Action book covers this pretty extensively.  On Sun, Mar 18, 2012 at 5:25 AM, Felix.徐  wrote:  > Hi,all. > I'm new to mahout, it seems th...
   Author: Ted Dunning , 2012-03-18, 20:42
decision forest - Mahout - [mail # user]
...See here: https://issues.apache.org/jira/browse/MAHOUT-323  And yes, this is new code that is not even part of trunk.  On Sat, Mar 6, 2010 at 7:30 PM, Cui tony  wrote:  &...
   Author: Ted Dunning , 2010-03-07, 04:17