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From "David Mark Nemeskey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-2959) [GSoC] Implementing State of the Art Ranking for Lucene
Date Mon, 30 May 2011 15:20:48 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Mark Nemeskey updated LUCENE-2959:
----------------------------------------

    Description: 
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.

  was:
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.


> [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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