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From Apache Wiki <>
Subject [Solr Wiki] Update of "SpellCheckComponent" by jeffnewburn
Date Fri, 14 Nov 2008 18:22:37 GMT
Dear Wiki user,

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The following page has been changed by jeffnewburn:

+ When adding <str name="field">FieldName</str> be aware all fieldType processing
is done prior to the dictionary creation.  It is best to avoid a heavily processed field (ie
synonyms and stemming) to get more accurate results.  If the field has many word variations
from processing then the dictionary will be created with those in addition to more valid spell
checking data.
  Multiple "spellchecker" instances can be configured in the same way. The currently available
spellchecker implementations are:
   * org.apache.solr.spelling.!IndexBasedSpellChecker -- Create and use a spelling dictionary
that is based on the Solr index or an existing Lucene index
   * org.apache.solr.spelling.!FileBasedSpellChecker -- Create and use a spelling dictionary
based off a flat file.  This can be useful for using Solr as a spelling server or in other
instances when spelling suggestions do not need to be based on the content of an actual index.

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