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From "Apache Spark (JIRA)" <>
Subject [jira] [Assigned] (SPARK-5567) Add prediction methods to LDA
Date Sun, 19 Jul 2015 07:09:07 GMT


Apache Spark reassigned SPARK-5567:

    Assignee: Apache Spark

> Add prediction methods to LDA
> -----------------------------
>                 Key: SPARK-5567
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.3.0
>            Reporter: Joseph K. Bradley
>            Assignee: Apache Spark
>   Original Estimate: 168h
>  Remaining Estimate: 168h
> LDA currently supports prediction on the training set.  E.g., you can call logLikelihood
and topicDistributions to get that info for the training data.  However, it should support
the same functionality for new (test) documents.
> This will require inference but should be able to use the same code, with a few modification
to keep the inferred topics fixed.
> Note: The API for these methods is already in the code but is commented out.

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