Scoring or ranking of document relevancy is called "similarity". You can create your own similarity class, or even have a field-specific similarity class.

See, for example:
http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/similarities/TFIDFSimilarity.html
http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/similarities/Similarity.html

and

http://wiki.apache.org/solr/SchemaXml#Similarity

-- Jack Krupansky

-----Original Message----- From: Dotan Cohen
Sent: Wednesday, October 31, 2012 5:29 PM
To: solr-user@lucene.apache.org
Subject: Eliminate or reduce fieldNorm as a consideration.

I would like to lower or eliminate the contribution of the fieldNorm
on some searches. I figured that a LocalParam might help, but I cannot
find any documentation on it. Is there documentation on how to reduce
the consideration for tf, idf, fieldNorm, and coord? Where is that?

Thanks.

--
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com

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