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https://issues.apache.org/jira/browse/SPARK-5714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-5714.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.3.0

Issue resolved by pull request 4501
[https://github.com/apache/spark/pull/4501]

> Refactor initial step of LDA to remove redundant operations
> -----------------------------------------------------------
>
>                 Key: SPARK-5714
>                 URL: https://issues.apache.org/jira/browse/SPARK-5714
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>            Reporter: Liang-Chi Hsieh
>            Priority: Minor
>             Fix For: 1.3.0
>
>
> The initialState of LDA performs several RDD operations that looks redundant. 
> This pr tries to simplify these operations.



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