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From "yuhao yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-12375) VectorIndexer: allow unknown categories
Date Fri, 25 Dec 2015 05:44:49 GMT

    [ https://issues.apache.org/jira/browse/SPARK-12375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15071370#comment-15071370
] 

yuhao yang commented on SPARK-12375:
------------------------------------

PR here, https://github.com/apache/spark/pull/10466 

> VectorIndexer: allow unknown categories
> ---------------------------------------
>
>                 Key: SPARK-12375
>                 URL: https://issues.apache.org/jira/browse/SPARK-12375
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML
>            Reporter: Joseph K. Bradley
>            Assignee: Apache Spark
>
> Add option for allowing unknown categories, probably via a parameter like "allowUnknownCategories."
> If true, then handle unknown categories during transform by assigning them to an extra
category index.
> The API should resemble the API used for StringIndexer.



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