[jira] [Resolved] (SPARK-28117) LDA and BisectingKMeans cache the input dataset if necessary

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-28117.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 24920
[https://github.com/apache/spark/pull/24920]

> LDA and BisectingKMeans cache the input dataset if necessary
> ------------------------------------------------------------
>
>                 Key: SPARK-28117
>                 URL: https://issues.apache.org/jira/browse/SPARK-28117
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 3.0.0
>            Reporter: zhengruifeng
>            Assignee: zhengruifeng
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> In MLLIB-LDA, if the EM solver caches the dataset internally, while the Online do not.
> So in the ML-LDA, we need to cache the internmediate dataset if necessary.
>  
> BisectingKMeans also needs too.



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