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Posted to issues@spark.apache.org by "DB Tsai (JIRA)" <ji...@apache.org> on 2014/11/25 08:45:12 UTC

[jira] [Created] (SPARK-4596) Refactorize Normalizer to make code cleaner

DB Tsai created SPARK-4596:
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             Summary: Refactorize Normalizer to make code cleaner
                 Key: SPARK-4596
                 URL: https://issues.apache.org/jira/browse/SPARK-4596
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: DB Tsai


In this refactoring, the performance is slightly increased by removing the overhead from breeze vector. The bottleneck is still in breeze norm which is implemented by activeIterator. This inefficiency of breeze norm will be addressed in next PR. At least, this PR makes the code more consistent in the codebase.  



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