[GSoC] Implementing State of the Art Ranking for Lucene
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                 Key: LUCENE-2959
                 URL: https://issues.apache.org/jira/browse/LUCENE-2959
             Project: Lucene - Java
          Issue Type: New Feature
          Components: Examples, Javadocs, Query/Scoring
            Reporter: David Mark Nemeskey
         Attachments: 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.

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