It is merely a performance optimization. Lucene is already blazing fast at basic tf-idf query, so that form of "hack" is not needed.

-- Jack Krupansky

-----Original Message----- From: Furkan KAMACI
Sent: Tuesday, June 04, 2013 10:07 AM
To: solr-user@lucene.apache.org
Subject: Solr/Lucene Champion List Support?

There is a term called champion list at information retrieval theory. Does
solr/lucene has an implementation of it? Here is some information:
http://en.wikipedia.org/wiki/Champion_list

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