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Posted to issues@lucene.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2019/10/29 08:23:00 UTC

[jira] [Commented] (LUCENE-9024) Optimize IntroSelector for worst case

    [ https://issues.apache.org/jira/browse/LUCENE-9024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16961795#comment-16961795 ] 

ASF subversion and git services commented on LUCENE-9024:
---------------------------------------------------------

Commit d53e877152851a3dc91c7c56f01544a43ffe7397 in lucene-solr's branch refs/heads/master from Paul Sanwald
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=d53e877 ]

LUCENE-9024: Optimize IntroSelector to use median of medians (#966)




> Optimize IntroSelector for worst case
> -------------------------------------
>
>                 Key: LUCENE-9024
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9024
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/other
>            Reporter: Paul Sanwald
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> There is a TODO in IntroSelector.java to use the median of medians algorithm instead of HeapSort for the worst case, as median of medians offers a better time complexity.
> I've discussed this with [~jpountz] and he has agreed to review my work on this.



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