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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/06/23 06:07:16 UTC
[jira] [Updated] (SPARK-16156) RowMatrıx Covariance
[ https://issues.apache.org/jira/browse/SPARK-16156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated SPARK-16156:
------------------------------
Flags: (was: Patch,Important)
Affects Version/s: (was: 2.1.0)
Target Version/s: (was: 2.1.0)
Labels: (was: patch)
Fix Version/s: (was: 2.1.0)
[~volkanagun@gmail.com] many things wrong with this JIRA, please read
But this looks like a duplicate of https://issues.apache.org/jira/browse/SPARK-14533
> RowMatrıx Covariance
> --------------------
>
> Key: SPARK-16156
> URL: https://issues.apache.org/jira/browse/SPARK-16156
> Project: Spark
> Issue Type: Bug
> Components: MLilb
> Affects Versions: 2.0.0
> Environment: Spark MLLIB
> Reporter: Hayri Volkan Agun
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Spark doesn't provide a good solution of covariance for RowMatrix with large columns. This can be fixed with using efficient stable computations and approximating to the true mean.
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