Hi, I'm experimenting with the Spellcheck component and have therefor used the example configuration for spell checking to try things out. My solrconfig.xml looks like this:
<searchComponent name="spellcheck" class="solr.SpellCheckComponent"> <str name="queryAnalyzerFieldType">spell</str> <!-- Multiple "Spell Checkers" can be declared and used by this component --> <!-- a spellchecker built from a field of the main index --> <lst name="spellchecker"> <str name="name">default</str> <str name="field">spell</str> <str name="classname">solr.DirectSolrSpellChecker</str> <!-- the spellcheck distance measure used, the default is the internal levenshtein --> <str name="distanceMeasure">internal</str> <!-- uncomment this to require suggestions to occur in 1% of the documents <float name="thresholdTokenFrequency">.01</float> --> </lst> <!-- a spellchecker that can break or combine words. See "/spell" handler below for usage --> <lst name="spellchecker"> <str name="name">wordbreak</str> <str name="classname">solr.WordBreakSolrSpellChecker</str> <str name="field">spell</str> <str name="combineWords">true</str> <str name="breakWords">true</str> <int name="maxChanges">10</int> </lst> </searchComponent> And I've added the spellcheck component to my /select request handler: <requestHandler name="/select" class="solr.SearchHandler"> ... <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> I have built up the spellchecker source in the schema.xml from the name field: <field name="spell" type="spell" indexed="true" stored="true" required="false" multiValued="false"/> <copyField source="name" dest="spell" maxChars="30000" /> ... <fieldType name="spell" class="solr.TextField" positionIncrementGap="100"> <analyzer type="index"> <tokenizer class="solr.StandardTokenizerFactory"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.StandardTokenizerFactory"/> </analyzer> </fieldType> As I'm querying the /select request handler, I should get spellcheck suggestions with my results. However, I rarely get a suggestion. Examples: query: Sichtscheibe, spellcheck suggestion: Sichtscheiben (works) query: Sichtscheib, spellcheck suggestion: Sichtscheiben (works) query: ichtscheiben, no spellcheck suggestions As far as I can identify, I only get suggestions when I get real search results. I get results for the first 2 examples, because the german StemFilterFactory translates "Sichtscheibe" and "Sichtscheiben" into "Sichtscheib", so there are matches found. However, the third query should result in a suggestion, as the Levenshtein distance is less than in the second example. Suggestions, improvements, corrections?
