Alex, If I understand you correctly, all you have to do is either make sure that query is run as a phrase query (with quotes around the it), or as a term query where both terms are required (with plus sign in front of each term, no space).
As for detecting score gap and such, you could do that with a custom Collector. Otis -- Sematext is hiring -- http://sematext.com/about/jobs.html?mls Lucene, Solr, Nutch, Katta, Hadoop, HBase, UIMA, NLP, NER, IR ----- Original Message ---- > From: Alex <azli...@gmail.com> > To: java-user@lucene.apache.org > Sent: Monday, September 21, 2009 6:17:53 PM > Subject: Filtering query results based on relevance/acuracy > > Hi, > > I'm, a total newbie with lucene and trying to understand how to achieve my > (complicated) goals. So what I'm doing is yet totally experimental for me > but is probably extremely trivial for the experts in this list :) > > I use lucene and Hibernate Search to index locations by their name, type, > etc ... > The LocationType is an Object that has it's "name" field indexed both > tokenized and untokenized. > > The following LocationType names are indexed > "Restaurant" > "Mexican Restaurant" > "Chinese Restaurant" > "Greek Restaurant" > etc... > > Considering the following query : > > "Mexican Restaurant" > > I systematically get all the entries as a result, most certainly because the > "Restaurant" keyword is present in all of them. > I'm trying to have a finer grained result set. > Obviously for "Mexican Restaurant" I want the "Mexican Restaurant" entry as > a result but NOT "Chinese Restaurant" nor "Greek Restaurant" as they are > irrelevant. But maybe "Restaurant" itself should be returned with a lower > wight/score or maybe it shouldn't ... im not sure about this one. > > 1) > How can I do that ? > > Here is the code I use for querying : > > > String[] typeFields = {"name", "tokenized_name"}; > MapboostPerField = new HashMap(2); > boostPerField.put( "name", (float) 4); > boostPerField.put( "tokenized_name", (float) 2); > > > QueryParser parser = new MultiFieldQueryParser( > typeFields , > new StandardAnalyzer(), > boostPerField > ); > > org.apache.lucene.search.Query luceneQuery; > > try { > luceneQuery = parser.parse(queryString); > } > catch (ParseException e) { > throw new RuntimeException("Unable to parse query: " + > queryString, e); > } > > > > > > I guess that there is a way to filter out results that have a score below a > given threshold or a way to filter out results based on score gap or > anything similar. But I have no idea on how to do this... > > > What is the best way to achieve what I want? > > Thank you for your help ! > > Cheers, > > Alex --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
