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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-17027) PolynomialExpansion.choose is prone to integer overflow
Date Thu, 11 Aug 2016 23:26:20 GMT

    [ https://issues.apache.org/jira/browse/SPARK-17027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15418112#comment-15418112
] 

Apache Spark commented on SPARK-17027:
--------------------------------------

User 'zero323' has created a pull request for this issue:
https://github.com/apache/spark/pull/14614

> PolynomialExpansion.choose is prone to integer overflow 
> --------------------------------------------------------
>
>                 Key: SPARK-17027
>                 URL: https://issues.apache.org/jira/browse/SPARK-17027
>             Project: Spark
>          Issue Type: Bug
>          Components: ML
>    Affects Versions: 1.6.0, 2.0.0
>            Reporter: Maciej Szymkiewicz
>            Priority: Minor
>
> Current implementation computes power of k directly and because of that it is susceptible
to integer overflow on relatively small input (4 features, degree equal 10).  It would be
better to use recursive formula instead.



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