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https://issues.apache.org/jira/browse/MAHOUT-1807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15195609#comment-15195609
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ASF GitHub Bot commented on MAHOUT-1807:
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GitHub user andrewpalumbo opened a pull request:
https://github.com/apache/mahout/pull/189
MAHOUT-1807: Fix calculation of second norm of DRM in Spark
Currently the spark implementation of norm is missing the square root.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andrewpalumbo/mahout MAHOUT-1807
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/mahout/pull/189.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #189
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commit 12491bcb2cb8c5ae9fd4b55eafa861772b8191df
Author: Andrew Palumbo <[email protected]>
Date: 2016-03-15T16:38:04Z
Fix calculation of second norm of DRM
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> Distributed second norm doesn't take sqrt
> -----------------------------------------
>
> Key: MAHOUT-1807
> URL: https://issues.apache.org/jira/browse/MAHOUT-1807
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.11.2
> Reporter: Andrew Palumbo
> Assignee: Andrew Palumbo
> Fix For: 0.12.0
>
>
> The square root function is missing when calculating the second norm of a
> DRM in the Spark module.
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