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https://issues.apache.org/jira/browse/MAHOUT-1148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570893#comment-13570893
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Suneel Marthi commented on MAHOUT-1148:
---------------------------------------
QRDecompositionTest.fullRankWide() is failing.
Here's what I am seeing locally:-
fullRankWide(org.apache.mahout.math.QRDecompositionTest) Time elapsed: 0.004
sec <<< FAILURE!
java.lang.AssertionError: null
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertFalse(Assert.java:64)
at org.junit.Assert.assertFalse(Assert.java:74)
at
org.apache.mahout.math.QRDecompositionTest.fullRankWide(QRDecompositionTest.java:117)
> 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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