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https://issues.apache.org/jira/browse/SPARK-9224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley updated SPARK-9224:
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Shepherd: Joseph K. Bradley
> OnlineLDAOptimizer Performance Improvements
> -------------------------------------------
>
> Key: SPARK-9224
> URL: https://issues.apache.org/jira/browse/SPARK-9224
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Feynman Liang
> Assignee: Feynman Liang
>
> OnlineLDAOptimizer's current implementation can be improved by using in-place
> updating (instead of reassignment to vars), reducing number of
> transpositions, and an outer product (instead of looping) to collect stats.
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