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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4100) Maxscore - Efficient Scoring
Date Thu, 30 Nov 2017 16:20:00 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adrien Grand updated LUCENE-4100:
---------------------------------
    Attachment: LUCENE-4100.patch

Updated patch that applies Robert's feedback and simplifies things a bit by assuming that
scores are positive for instance (LUCENE-7996).

> Maxscore - Efficient Scoring
> ----------------------------
>
>                 Key: LUCENE-4100
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4100
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/codecs, core/query/scoring, core/search
>    Affects Versions: 4.0-ALPHA
>            Reporter: Stefan Pohl
>              Labels: api-change, gsoc2014, patch, performance
>             Fix For: master (8.0)
>
>         Attachments: LUCENE-4100.patch, LUCENE-4100.patch, LUCENE-4100.patch, LUCENE-4100.patch,
contrib_maxscore.tgz, maxscore.patch
>
>
> At Berlin Buzzwords 2012, I will be presenting 'maxscore', an efficient algorithm first
published in the IR domain in 1995 by H. Turtle & J. Flood, that I find deserves more
attention among Lucene users (and developers).
> I implemented a proof of concept and did some performance measurements with example queries
and lucenebench, the package of Mike McCandless, resulting in very significant speedups.
> This ticket is to get started the discussion on including the implementation into Lucene's
codebase. Because the technique requires awareness about it from the Lucene user/developer,
it seems best to become a contrib/module package so that it consciously can be chosen to be
used.



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