WordBreakSolrSpellChecker offers suggestions by combining adjacent query terms and/or breaking terms into multiple words. It is a SpellCheckComponent enhancement, leveraging Lucene's WordBreakSpellChecker. It can detect spelling errors resulting from misplaced whitespace without the use of shingle-based dictionaries and provides collation support for word-break errors, including cases where the user has a mix of single-word spelling errors and word-break errors in the same query. It also provides shard support.
Here is how it might be configured in solrconfig.xml: <http://lucene.472066.n3.nabble.com/file/n4164997/Screen_Shot_2014-10-20_at_9.png> Some of the parameters will be familiar from the discussion of the other spell checkers, such as name, classname, and field. New for this spell checker is combineWords, which defines whether words should be combined in a dictionary search (default is true); breakWords, which defines if words should be broken during a dictionary search (default is true); and maxChanges, an integer which defines how many times the spell checker should check collation possibilities against the index (default is 10). The spellchecker can be configured with a traditional checker (ie: DirectSolrSpellChecker). The results are combined and collations can contain a mix of corrections from both spellcheckers. Add It to a Request Handler Queries will be sent to a RequestHandler. If every request should generate a suggestion, then you would add the following to the requestHandler that you are using: <http://lucene.472066.n3.nabble.com/file/n4164997/2.png> For more details, you can read the below tutorial https://cwiki.apache.org/confluence/display/solr/Spell+Checking -- View this message in context: http://lucene.472066.n3.nabble.com/Word-Break-Spell-Checker-Implementation-algorithm-tp4164955p4164997.html Sent from the Solr - User mailing list archive at Nabble.com.
