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Posted to dev@lucene.apache.org by "Uwe Schindler (Assigned) (JIRA)" <ji...@apache.org> on 2012/04/03 18:58:23 UTC
[jira] [Assigned] (LUCENE-3907) Improve the
Edge/NGramTokenizer/Filters
[ https://issues.apache.org/jira/browse/LUCENE-3907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler reassigned LUCENE-3907:
-------------------------------------
Assignee: Uwe Schindler
I would like to be the mentor for this. I wanted to fix those long time ago and I am happy somebody helps.
P.S.: Maybe we also get a new ShingleMatrix *LOL*
> Improve the Edge/NGramTokenizer/Filters
> ---------------------------------------
>
> Key: LUCENE-3907
> URL: https://issues.apache.org/jira/browse/LUCENE-3907
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Uwe Schindler
> Labels: gsoc2012, lucene-gsoc-12
> Fix For: 4.0
>
>
> Our ngram tokenizers/filters could use some love. EG, they output ngrams in multiple passes, instead of "stacked", which messes up offsets/positions and requires too much buffering (can hit OOME for long tokens). They clip at 1024 chars (tokenizers) but don't (token filters). The split up surrogate pairs incorrectly.
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