You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Fokko Driesprong (JIRA)" <ji...@apache.org> on 2016/01/17 23:09:39 UTC

[jira] [Created] (SPARK-12869) Optimize conversion from BlockMatrix to IndexedRowMatrix

Fokko Driesprong created SPARK-12869:
----------------------------------------

             Summary: Optimize conversion from BlockMatrix to IndexedRowMatrix
                 Key: SPARK-12869
                 URL: https://issues.apache.org/jira/browse/SPARK-12869
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: Fokko Driesprong


In the current implementation of the BlockMatrix, the conversion to the IndexedRowMatrix is done by converting it to a CoordinateMatrix first. This is somewhat ok when the matrix is very sparse, but for dense matrices this is very inefficient.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org