Re: Document "freshness" and Boost Functions

2007-01-17 Thread Chris Hostetter
: > "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 : I've been using expressions like these in boolean queries, based on a : "broadcast_date" field: : : _val_:"linear(recip(rord(broadcast_date)

Re: Document "freshness" and Boost Functions

2007-01-17 Thread Ken Krugler
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 quer

Re: Document "freshness" and Boost Functions

2007-01-17 Thread Bertrand Delacretaz
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 quer

Document "freshness" and Boost Functions

2007-01-17 Thread Luis Neves
Hello, Reading the javadocs from the DisMaxRequestHandler 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'm assuming it's possible (right?), but I can't