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From "Makoto Yui (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVEMALL-90) Refine incomplete AUC (classification) implementation
Date Fri, 10 Mar 2017 07:18:04 GMT

    [ https://issues.apache.org/jira/browse/HIVEMALL-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904603#comment-15904603
] 

Makoto Yui commented on HIVEMALL-90:
------------------------------------

Merge temporary AUC on merge() and compute AUC by sorting temporary AUCs on terminate().
https://dl.dropboxusercontent.com/u/13123103/2017-03-10%2015.43.06.jpg

> Refine incomplete AUC (classification) implementation
> -----------------------------------------------------
>
>                 Key: HIVEMALL-90
>                 URL: https://issues.apache.org/jira/browse/HIVEMALL-90
>             Project: Hivemall
>          Issue Type: Improvement
>            Reporter: Takuya Kitazawa
>            Assignee: Takuya Kitazawa
>
> Current implementation cannot handle some merge orders e.g., {0, 2, 1} in case of a test
case https://github.com/apache/incubator-hivemall/blob/97bc91247f1a453b6ffb49212800fa601d25c297/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java#L207
> This should be refined, and AUC UDAF has to be able to compute and merge partial results
in an arbitrary order.



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