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From "darion yaphet (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21104) Support sort with index when parse LibSVM Record
Date Thu, 15 Jun 2017 08:18:00 GMT
darion yaphet created SPARK-21104:
-------------------------------------

             Summary: Support sort with index when parse LibSVM Record
                 Key: SPARK-21104
                 URL: https://issues.apache.org/jira/browse/SPARK-21104
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
    Affects Versions: 2.1.1
            Reporter: darion yaphet
            Priority: Minor


When I'm loading LibSVM from HDFS , I found feature index should be in ascending order . We
can sorted with *indices* when we parse the input line input a (index, value) tuple and avoid
check if indices are in ascending order after that.



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