[Xapian-discuss] Giving titles extra weights and searching with titles

[James Aylett]

On Wed, Mar 29, 2006 at 11:12:57PM +0100, Paul Dixon wrote:

> What's the best technique for giving the terms in, say, a document
> title more weight than the terms? Do I simply use the third "wdfinc
> "parameter to Xapian::Document::add_posting to give it more weight?

That will do it, yes.

> Secondly, if I wanted to make it possible to search just within a
> title, would I also need to store the same of terms prefixed with, say
> TITLE: to do that?

I'd be inclined to generate terms prefixed with "S", and then use a
prefix map to the QueryParser to map "title:" in a query to "S".

qp.add_prefix("title", "S")

if you're using it directly, or something like:

$setmap{prefix,title,S}

in an omegascript template.

J

-- 
/--------------------------------------------------------------------------\
  James Aylett                                                  xapian.org
  james at tartarus.org                               uncertaintydivision.org