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

["Xiangrui Meng (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng resolved SPARK-4596.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0

Issue resolved by pull request 3446
[https://github.com/apache/spark/pull/3446]

> 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
>             Fix For: 1.2.0
>
>
> 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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