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