I'm using solr 3.5 for a type ahead search system. I want to rank exact matches(lowercased) higher than non-exact matches.
For example, if i have two docs: Doc One: title="New York" Doc Two: title="New York City" I would expect a query of "new york" to rank "New York" over "New York City" It looks like I need to take into account the # of matches vs the total # of tokens in a field. I'm not sure how to do this. My debug query shows the two docs with the exact scores: <lst name="debug"> <str name="rawquerystring">"new york"</str> <str name="querystring">"new york"</str> <str name="parsedquery">+DisjunctionMaxQuery((title:"new york"^50.0 | textng:"new york"^40.0))</str> <str name="parsedquery_toString">+(title:"new york"^50.0 | textng:"new york"^40.0)</str> <lst name="explain"> <str name="4f553cbc03643929d093d467">1.1890696 = (MATCH) max of: 1.1890696 = (MATCH) weight(title:"new york"^50.0 in 0), product of: 0.99999994 = queryWeight(title:"new york"^50.0), product of: 50.0 = boost 1.1890697 = idf(title: new=2 york=2) 0.01681987 = queryNorm 1.1890697 = fieldWeight(title:"new york" in 0), product of: 1.0 = tf(phraseFreq=1.0) 1.1890697 = idf(title: new=2 york=2) 1.0 = fieldNorm(field=title, doc=0)</str> <str name="4f553cbc03643929d093d468">1.1890696 = (MATCH) max of: 1.1890696 = (MATCH) weight(title:"new york"^50.0 in 1), product of: 0.99999994 = queryWeight(title:"new york"^50.0), product of: 50.0 = boost 1.1890697 = idf(title: new=2 york=2) 0.01681987 = queryNorm 1.1890697 = fieldWeight(title:"new york" in 1), product of: 1.0 = tf(phraseFreq=1.0) 1.1890697 = idf(title: new=2 york=2) 1.0 = fieldNorm(field=title, doc=1)</str> </lst> I posted my solrconfig/schema here: https://gist.github.com/1984052 -- Tommy Chheng
