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From "Mck SembWever (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1380) Patch for ShingleFilter.enablePositions (or PositionFilter)
Date Wed, 24 Sep 2008 09:41:44 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mck SembWever updated LUCENE-1380:
----------------------------------

    Attachment: LUCENE-1380-PositionFilter.patch

Re-attached the PositionFilter patch addressing Steve's moderation comments. 

> Patch for ShingleFilter.enablePositions (or PositionFilter)
> -----------------------------------------------------------
>
>                 Key: LUCENE-1380
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1380
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>            Reporter: Mck SembWever
>            Priority: Trivial
>         Attachments: LUCENE-1380-PositionFilter.patch, LUCENE-1380.patch, LUCENE-1380.patch
>
>
> Make it possible for *all* words and shingles to be placed at the same position, that
is for _all_ shingles (and unigrams if included) to be treated as synonyms of each other.
> Today the shingles generated are synonyms only to the first term in the shingle.
> For example the query "abcd efgh ijkl" results in:
>    ("abcd" "abcd efgh" "abcd efgh ijkl") ("efgh" efgh ijkl") ("ijkl")
> where "abcd efgh" and "abcd efgh ijkl" are synonyms of "abcd", and "efgh ijkl" is a synonym
of "efgh".
> There exists no way today to alter which token a particular shingle is a synonym for.
> This patch takes the first step in making it possible to make all shingles (and unigrams
if included) synonyms of each other.
> See http://comments.gmane.org/gmane.comp.jakarta.lucene.user/34746 for mailing list thread.

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