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Posted to dev@lucene.apache.org by "Alan Woodward (JIRA)" <ji...@apache.org> on 2018/03/22 10:43:00 UTC

[jira] [Reopened] (LUCENE-8202) Add a FixedShingleFilter

     [ https://issues.apache.org/jira/browse/LUCENE-8202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan Woodward reopened LUCENE-8202:
-----------------------------------

Reopening to address a couple of test failures

> Add a FixedShingleFilter
> ------------------------
>
>                 Key: LUCENE-8202
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8202
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Alan Woodward
>            Assignee: Alan Woodward
>            Priority: Major
>             Fix For: 7.4
>
>         Attachments: LUCENE-8202.patch, LUCENE-8202.patch, LUCENE-8202.patch
>
>
> In LUCENE-3475 I tried to make a ShingleGraphFilter that could accept and emit arbitrary graphs, while duplicating all the functionality of the existing ShingleFilter.  This ends up being extremely hairy, and doesn't play well with query parsers.
> I'd like to step back and try and create a simpler shingle filter that can be used for index-time phrase tokenization only.  It will have a single fixed shingle size, can deal with single-token synonyms, and won't emit unigrams.



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