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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2015/07/21 22:24:05 UTC

[jira] [Updated] (SPARK-8536) Generalize LDA to asymmetric doc-topic priors

     [ https://issues.apache.org/jira/browse/SPARK-8536?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joseph K. Bradley updated SPARK-8536:
-------------------------------------
    Summary: Generalize LDA to asymmetric doc-topic priors  (was: Generalize LDA to asymmetric priors)

> Generalize LDA to asymmetric doc-topic priors
> ---------------------------------------------
>
>                 Key: SPARK-8536
>                 URL: https://issues.apache.org/jira/browse/SPARK-8536
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>            Reporter: Joseph K. Bradley
>   Original Estimate: 216h
>  Remaining Estimate: 216h
>
> Several users have requested LDA using asymmetric priors, including learning those hyperparameters.  We should add this functionality.
> Note that it could be added to EM, online LDA, or both.  I suggest adding it to online LDA initially, followed by EM in a separate PR.



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