On 12/13/06, Karl Koch <[EMAIL PROTECTED]> wrote:
To me, it seems that coordination level matching could be used if I don't want to use TFxIDF but not together with it. In this context, I wonder what benefit the "coordination level matching" has in combination with TFxIDF?
Well, if I search for blue kangaroo, the coord is nice to get documents with "blue" and "kangaroo" to score higher than documents with just one term. And among documents with just one term, the idf factor will make "kangaroo" rank above "blue", which is generally desired. I have seen complaints about the default similarity though, where the coord factor does not give enough of a boost in relation to the idf of some of the individual terms. -Yonik http://incubator.apache.org/solr Solr, the open-source Lucene search server --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
