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-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org