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Date: Sun, 29 May 2011 20:55:47 +0000 (UTC)
From: "Ted Dunning (JIRA)" <jira@apache.org>
To: dev@mahout.apache.org
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Subject: [jira] [Commented] (MAHOUT-668) Adding knn support to Mahout
 classifiers
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    [ https://issues.apache.org/jira/browse/MAHOUT-668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040873#comment-13040873 ] 

Ted Dunning commented on MAHOUT-668:
------------------------------------

So sorry... I didn't look enough at context.  

I was referring to the things that inherit from OnlineLearner.

You are correct that Bayes isn't online or updatable as it stands.  However, that isn't necessary since all that Bayes depends on are counts which are easily merged.

That will require a bit of spelunking to figure out where the counts are stored and how to merge them.

> Adding knn support to Mahout classifiers
> ----------------------------------------
>
>                 Key: MAHOUT-668
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-668
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.6
>            Reporter: Daniel McEnnis
>              Labels: classification, knn
>         Attachments: MAHOUT-668.pat, Mahout-668-2.patch, Mahout-668-3.patch, Mahout-668-3.patch, Mahout-668-3.patch, Mahout-668-3.patch, Mahout-668-3.patch, Mahout-668-3.patch, Mahout-668.pat
>
>   Original Estimate: 672h
>  Remaining Estimate: 672h
>
> Initial implementation of the knn.  This is a minimum base set with many more possible add-ons including support for text and weka input as well as a classify only (no confusion matrix) back end.  The system was tested on the 20 newsgroup data set.

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