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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-2959) [GSoC] Implementing State of the Art Ranking for Lucene
Date Tue, 23 Aug 2011 13:30:29 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13089453#comment-13089453
] 

Robert Muir commented on LUCENE-2959:
-------------------------------------

I think we can defer that one or just leave it open for consideration later.

As far as this issue, lets keep it open until we merge branch to trunk!

> [GSoC] Implementing State of the Art Ranking for Lucene
> -------------------------------------------------------
>
>                 Key: LUCENE-2959
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2959
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: core/query/scoring, general/javadocs, modules/examples
>            Reporter: David Mark Nemeskey
>            Assignee: Robert Muir
>              Labels: gsoc2011, lucene-gsoc-11, mentor
>             Fix For: flexscoring branch
>
>         Attachments: LUCENE-2959_mockdfr.patch, implementation_plan.pdf, proposal.pdf
>
>
> Lucene employs the Vector Space Model (VSM) to rank documents, which compares
> unfavorably to state of the art algorithms, such as BM25. Moreover, the architecture
is
> tailored specically to VSM, which makes the addition of new ranking functions a non-
> trivial task.
> This project aims to bring state of the art ranking methods to Lucene and to implement
a
> query architecture with pluggable ranking functions.
> The wiki page for the project can be found at http://wiki.apache.org/lucene-java/SummerOfCode2011ProjectRanking.

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