[jira] [Commented] (MAHOUT-1807) Distributed second norm doesn't take sqrt

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-1807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15195609#comment-15195609 ] 

ASF GitHub Bot commented on MAHOUT-1807:
----------------------------------------

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
    
----
commit 12491bcb2cb8c5ae9fd4b55eafa861772b8191df
Author: Andrew Palumbo <ap...@apache.org>
Date:   2016-03-15T16:38:04Z

    Fix calculation of second norm of DRM

----


> 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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