> We have indexed various field related information, such as
> Title, Body , Meta text, H1, URLĀ  etc.
> What should be the values for these fields?

Boost value is multiplied with score. Or in other words it is a multiplication 
factor in score calculation.

> Should they be relative?
Yes.

> Are there any standard values?
No.

"The default value of field boosts, logically, is 1.0. During indexing, a 
Document can be assigned a boost, too. A Document boost factor implicitly
sets the starting field boost of all fields to the specified value. 
Field-specific boosts are multiplied by the starting value, giving the final 
value of the field boost factor." [Hatcher's Lucene in Action Book]

> what can be the best way to combine the page rank information with the 
> lucene'sĀ document score?

I don't know it is the best way but using page rank as a document level boost 
during indexing is the easiest way, I guess.

You can probably do it at query time also but I don't know how to do it in 
Lucene.
In Solr 
http://lucene.apache.org/solr/api/org/apache/solr/search/BoostQParserPlugin.html






---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org
For additional commands, e-mail: java-user-h...@lucene.apache.org

Reply via email to