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From "Joseph K. Bradley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-6793) Implement perplexity for LDA
Date Tue, 28 Jul 2015 01:24:04 GMT

     [ https://issues.apache.org/jira/browse/SPARK-6793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joseph K. Bradley updated SPARK-6793:
-------------------------------------
    Assignee: Feynman Liang

> Implement perplexity for LDA
> ----------------------------
>
>                 Key: SPARK-6793
>                 URL: https://issues.apache.org/jira/browse/SPARK-6793
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.3.0
>            Reporter: Joseph K. Bradley
>            Assignee: Feynman Liang
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> LDA should be able to compute perplexity.  This JIRA is for computing it on the training
dataset.  See the linked JIRA for computing it on a new corpus: [SPARK-5567]



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