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https://issues.apache.org/jira/browse/SPARK-10230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley resolved SPARK-10230.
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Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 8422
[https://github.com/apache/spark/pull/8422]
> LDA public API should use docConcentration
> ------------------------------------------
>
> Key: SPARK-10230
> URL: https://issues.apache.org/jira/browse/SPARK-10230
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Feynman Liang
> Assignee: Feynman Liang
> Priority: Minor
> Fix For: 1.5.0
>
>
> {{alpha}} is provided as an alias to {{docConcentration}} because it is
> commonly used in literature. However, we should prefer {{docConcentration}}
> since it is unambiguous what we mean.
> The public API currently uses {{ {get,set}OptimizeAlpha}} but should instead
> use {{ {get,set}OptimizeDocConcentration}}. We should also probably deprecate
> any public API's using {{alpha}} directly and refer users to the
> corresponding {{docConcentration}} methods.
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