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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/05/05 14:10:00 UTC

[jira] [Assigned] (SPARK-7368) add QR decomposition for RowMatrix

     [ https://issues.apache.org/jira/browse/SPARK-7368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-7368:
-----------------------------------

    Assignee: Apache Spark

> add QR decomposition for RowMatrix
> ----------------------------------
>
>                 Key: SPARK-7368
>                 URL: https://issues.apache.org/jira/browse/SPARK-7368
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>            Reporter: yuhao yang
>            Assignee: Apache Spark
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Add QR decomposition for RowMatrix.
> There's a great distributed algorithm for QR decomposition, which I'm currently referring to.
> Austin R. Benson, David F. Gleich, James Demmel. "Direct QR factorizations for tall-and-skinny matrices in MapReduce architectures", 2013 IEEE International Conference on Big Data



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