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https://issues.apache.org/jira/browse/MAHOUT-1148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13571722#comment-13571722
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Hudson commented on MAHOUT-1148:
--------------------------------

Integrated in Mahout-Quality #1855 (See 
[https://builds.apache.org/job/Mahout-Quality/1855/])
    MAHOUT-1148 - fix test ... should have been full rank (Revision 1442691)

     Result = SUCCESS
tdunning : 
Files : 
* 
/mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java

                
> QR Decomposition is too slow
> ----------------------------
>
>                 Key: MAHOUT-1148
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1148
>             Project: Mahout
>          Issue Type: Bug
>            Reporter: Ted Dunning
>
> A user reported that QR decomposition is too slow.  I coded up a replacement 
> that can be 10x faster under certain cases and the new version is also tested.

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