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Posted to dev@mahout.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2011/07/16 00:22:00 UTC
[jira] [Commented] (MAHOUT-763) Map-Side Distance Comparison
[ https://issues.apache.org/jira/browse/MAHOUT-763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066259#comment-13066259 ]
Hudson commented on MAHOUT-763:
-------------------------------
Integrated in Mahout-Quality #943 (See [https://builds.apache.org/job/Mahout-Quality/943/])
MAHOUT-763: add alternative output mapping
MAHOUT-763: add map-side distance calculation
MAHOUT-763: hook into bin/mahout
gsingers : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1147318
Files :
* /mahout/trunk/core/src/test/java/org/apache/mahout/math/hadoop/similarity/TestVectorDistanceSimilarityJob.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/SeedVectorUtil.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/VectorDistanceSimilarityJob.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/VectorDistanceInvertedMapper.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/VectorDistanceMapper.java
gsingers : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1147257
Files :
* /mahout/trunk/core/src/test/java/org/apache/mahout/math/hadoop/similarity/TestVectorDistanceSimilarityJob.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/VectorDistanceSimilarityJob.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/similarity/VectorDistanceMapper.java
gsingers : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1147102
Files :
* /mahout/trunk/src/conf/driver.classes.props
> Map-Side Distance Comparison
> ----------------------------
>
> Key: MAHOUT-763
> URL: https://issues.apache.org/jira/browse/MAHOUT-763
> Project: Mahout
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 0.6
>
> Attachments: MAHOUT-763.patch, MAHOUT-763.patch, MAHOUT-763.patch, MAHOUT-763.patch
>
>
> KMeans currently on the map-side calculates the distance between a set of seeds and all other vectors. It would be handy to have a generalization of this that, given a set of vectors that fits in memory (the seeds) and other points, emit <seed id, other id, distance> according to the distance measure. This is similar to the RowSimilarityJob, but much simpler and not as general purpose.
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