On 1/17/07, Luis Neves <[EMAIL PROTECTED]> wrote:
...I see that is possible to use "Boost Functions" to influence the score. How would that work in order to improve the score of recent documents? (I have a timestamp field in the schema)...
I've been using expressions like these in boolean queries, based on a "broadcast_date" field: _val_:"linear(recip(rord(broadcast_date),1,1000,1000),11,0)" Where recip computes an age-based score, and linear is used to boost it. See http://incubator.apache.org/solr/docs/api/org/apache/solr/search/QueryParsing.html, and also the list archives, these functions have been discussed before. I'm not sure off the top of my head how to use this with dismax queries though. -Bertrand
