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[expand - 1 more] - Tastify - Mahout - [mail # user]
...Karl,  Do you have raw play events, or do you have progress events as well?  The single biggest improvement you can make with this kind of system is to quantify engagement somehow....
   Author: Ted Dunning , 2009-06-12, 14:15
Algorithms in Mahout - Mahout - [mail # user]
...On Mon, Nov 25, 2013 at 3:14 AM, Manuel Blechschmidt  wrote:  > There are/were multiple kNN implementation in Mahout: > Recommender knn > http://grepcode.com/file/repo1.ma...
   Author: Ted Dunning , 2013-11-25, 16:07
[expand - 1 more] - Any utility to solve the matrix inversion in Map/Reduce Way - Mahout - [mail # user]
...Left unsaid in this comment is the fact that matrix inversion of any sizable matrix is almost always a mistake because it is (a) inaccurate, (b) slow.  In scalable numerics it is also c...
   Author: Ted Dunning , 2013-01-18, 11:58
Regarding support of Evolutionary Algorithms on Apache Mahout - Mahout - [mail # user]
...It still has recorded step meta mutation. This should be very good for continuous domains.  It does not have a general genetic algorithm.    Sent from my iPhone  On Jan 1...
   Author: Ted Dunning , 2013-01-19, 16:13
[expand - 1 more] - Parallel ALS-WR on very large matrix -- crashing (I think) - Mahout - [mail # user]
...So the total size of the data is modest at about 560 M non-zero elements.  Total data should be small compared to your node sizes.  But the distribution of your data can be importa...
   Author: Ted Dunning , 2012-02-02, 01:12
Need help in loading model for classification - Mahout - [mail # user]
...Trim the model by setting a minimum term frequency.  On Thu, Feb 2, 2012 at 9:39 PM, SAMIK CHAKRABORTY  wrote:  > Hi, > > I am new to mahout and hadoop. > > I h...
   Author: Ted Dunning , 2012-02-03, 07:10
[expand - 1 more] - A little programming challenge - Mahout - [mail # user]
...Mahout has an implementation as well.  On Sunday, February 20, 2011, Dawid Weiss  wrote: > Ok, I get it. Ted's suggestion is probably something to follow -- > instead of seed...
   Author: Ted Dunning , 2011-02-22, 04:01
[expand - 1 more] - Mahout: NB Model for Text Classification - In Sample Error - Mahout - [mail # user]
...Yes for active learning, no for transduction.  You can do semi-supervised clustering as well.  This is a special case of transduction generally in many ways.  If you mean clas...
   Author: Ted Dunning , 2011-11-22, 03:01
[expand - 2 more] - Clustering Question (from a newbie) - Mahout - [mail # user]
...Do the category values add up to 1 for every row?  Where do these percentages come from?  At 148 rows, I would use R instead of Mahout.  On Tue, Nov 22, 2011 at 2:42 AM, Ferna...
   Author: Ted Dunning , 2011-11-22, 21:10
[expand - 4 more] - Log-likelihood ratio test as a probability - Mahout - [mail # user]
...I think that this is a really bad thing to do.  The LLR is really good to find interesting things.  Once you have done that, directly using the LLR in any form to produce a weight ...
   Author: Ted Dunning , 2013-06-20, 22:10