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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-3846) Fuzzy suggester
Date Mon, 01 Oct 2012 23:43:10 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir updated LUCENE-3846:
--------------------------------

    Attachment: LUCENE-3846_fuzzy_analyzing.patch

here's my hacky Fuzzy+Analyzing prototype.

But we need to fix intersectPrefixPaths to be able to efficiently intersect transition ranges
(e.g. findTargetArc + readNextArc through the range?).

anyway we should see how slow this is compared to mike's: the advantage would be you would
still get all the stuff AnalyzingSuggester has...
                
> Fuzzy suggester
> ---------------
>
>                 Key: LUCENE-3846
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3846
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.1
>
>         Attachments: LUCENE-3846_fuzzy_analyzing.patch, LUCENE-3846.patch, LUCENE-3846.patch
>
>
> Would be nice to have a suggester that can handle some fuzziness (like spell correction)
so that it's able to suggest completions that are "near" what you typed.
> As a first go at this, I implemented 1T (ie up to 1 edit, including a transposition),
except the first letter must be correct.
> But there is a penalty, ie, the "corrected" suggestion needs to have a much higher freq
than the "exact match" suggestion before it can compete.
> Still tons of nocommits, and somehow we should merge this / make it work with analyzing
suggester too (LUCENE-3842).

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