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From: lucene-cvs@jakarta.apache.org
To: lucene-cvs@jakarta.apache.org
Subject: =?iso-8859-1?q?=5BJakarta_Lucene_Wiki=5D_New=3A__SpellChecker?=
Date: Mon, 11 Oct 2004 17:21:52 -0000
Message-ID: <20041011172152.29476.37426@minotaur.apache.org>

   Date: 2004-10-11T10:21:52
   Editor: NicolasMaisonneuve <nicoo_@hotmail.com>
   Wiki: Jakarta Lucene Wiki
   Page: SpellChecker
   URL: http://wiki.apache.org/jakarta-lucene/SpellChecker

   no comment

New Page:

SpellChecker

a Spell Checker allow to suggest a list of words close to a misspelled word=
. This implementation use the n-gram technic and the levensthein distance. =

A  Index (the dictionary) with all the possible words (a lucene index) must=
 be  created. The structure of this index is (for a 3-4 gram):
word:
gram3:
gram4:
3start:
4start:
3end:
4end:
transposition:
 =

it's independant of the user index. So we can add words becoming to several
fields of several index for example or, why not, to a file with a list of w=
ords.

source:

SpellChecker spellChecker=3D new SpellChecker();


The suggestSimilar method return a list of suggests word sorted by the
Levenshtein distance and optionaly to the popularity of the word for a spec=
ific
field in a user index. More of that, this list can be restricted only to wo=
rds
present in a specific field of a user index.
 =

See the test case code for example =


download file to [http://issues.apache.org/bugzilla/show_bug.cgi?id=3D31617]

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