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https://issues.apache.org/jira/browse/SPARK-22114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-22114:
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Assignee: (was: Apache Spark)
> The condition of OnlineLDAOptimizer convergence should be configurable
> ------------------------------------------------------------------------
>
> Key: SPARK-22114
> URL: https://issues.apache.org/jira/browse/SPARK-22114
> Project: Spark
> Issue Type: Improvement
> Components: ML, MLlib
> Affects Versions: 2.3.0
> Reporter: Peng Meng
> Priority: Minor
>
> The current convergence of OnlineLDAOptimizer is:
> {code:java}
> while(meanGammaChange > 1e-3)
> {code}
> The condition of this is critical for the performance and accuracy of LDA.
> We should keep this configurable, like it is in Vowpal Vabbit:
> https://github.com/JohnLangford/vowpal_wabbit/blob/430f69453bc4876a39351fba1f18771bdbdb7122/vowpalwabbit/lda_core.cc
> :638
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