Hi! On Mon, Jan 23, 2012 at 18:42, Erick Erickson <erickerick...@gmail.com> wrote: > Count your parentheses (anyone here speak Lisp?) I think that + > is outside the entire clause, meaning it's saying that there is > a single mandatory clause, and it's the whole thing....
You're right in that case it's the whole query. Pardon me, I chose a bad example. Using your input concerning the boost values, here another (cleaner) example (edited for readability): <str name="querystring"> "java" OR "haskell" OR "python" OR "ruby" AND "programming" OR "programming language" OR "code coding" OR -"mobile" OR -"android" OR -"microsoft" OR -"windows" </str> <str name="parsedquery"> +( DisjunctionMaxQuery((stemmedText:java)) DisjunctionMaxQuery((stemmedText:haskell)) DisjunctionMaxQuery((stemmedText:python)) +DisjunctionMaxQuery((stemmedText:ruby)) +DisjunctionMaxQuery((stemmedText:program)) DisjunctionMaxQuery((stemmedText:"program language")) DisjunctionMaxQuery((stemmedText:"code code")) -DisjunctionMaxQuery((stemmedText:mobile)) -DisjunctionMaxQuery((stemmedText:android)) -DisjunctionMaxQuery((stemmedText:microsoft)) -DisjunctionMaxQuery((stemmedText:window)) ) </str> I've tried this using the three mentioned query parsers, all promote "ruby" and "program" to be mandatory. I was hoping for a "dontBeTooSmart=true" switch or something. > But boosting by 0.0 is probably a really bad thing. This may be > dropping all the scores to 0, which means "no match". The > default boost is 1.0 since it's multiplied to influence the score, > not added. So I'd try either not boosting or making > it something other than 0. Thank you very much for spotting this. The FAQ[1] is a bit confusing on that matter, if a boost of 0.0001 is still a boost, so 0.0 must be no boost at all, at least that was my logic. Cheers, Michael 1: http://wiki.apache.org/solr/SolrRelevancyFAQ#How_do_I_give_a_negative_.28or_very_low.29_boost_to_documents_that_match_a_query.3F
