Thanks for the Field.setOmitNorms(true) tip! Regarding the Similarity implementation I am trying to do, somehow it does not work.
Here's what I understand: Scorer implementation uses the method defined in Similarity, to compute score. (the formula expressed in "http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Similarity. html" is implemented in the scorer. According to the formula if all my methods return 1, except for tf(freq) which simply returns freq, all should work. score(q,d) = SUM (t in q) : tf(freq) * 1 * 1 * 1 * 1 * 1 * 1 By example doc contains 3 times the word "test", and 1 time the word "example", and the query was looking for both words, the score for the doc should be 4. But whatever I do, score is 1. What I am missing? Thanks Phil. -----Original Message----- From: Chris Hostetter [mailto:[EMAIL PROTECTED] Sent: Thursday, April 27, 2006 2:21 PM To: java-user@lucene.apache.org Subject: Re: Occurence (freq) and ordering : Upgrading from lucene 1.3 to 1.9. : We need to order the result in order of occurrences (score of a doc = sum of : occurrences of all Query). : I am just starting to read on Similarity, weights etc. You are definitely on the right track with Similarity. What you want is a Similarity implimentation where the values returned by most methods are either 0 or 1, except for the tf(int) and tf(float) which should be an identify function. If you *allways* want *every* query to work this way, then you may also want to look at using the new Field.setOmitNorms(true) option when you index your documents. It not only removes the lengthNorm from the scoring equation, but it can help to reduce the size of your index (which i seem to recall you were concerned with an another thread) -Hoss --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
