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https://issues.apache.org/jira/browse/SPARK-20082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959368#comment-15959368
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yuhao yang commented on SPARK-20082:
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Sorry I'm occupied by some internal project this week. I'll find some time to 
look into it this weekend or early next week.

> Incremental update of LDA model, by adding initialModel as start point
> ----------------------------------------------------------------------
>
>                 Key: SPARK-20082
>                 URL: https://issues.apache.org/jira/browse/SPARK-20082
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>    Affects Versions: 2.1.0
>            Reporter: Mathieu D
>
> Some mllib models support an initialModel to start from and update it 
> incrementally with new data.
> From what I understand of OnlineLDAOptimizer, it is possible to incrementally 
> update an existing model with batches of new documents.
> I suggest to add an initialModel as a start point for LDA.



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