Would be a nice contrib module, though...
-Grant
On Jan 9, 2008, at 5:30 AM, Andrzej Bialecki wrote:
Otis Gospodnetic wrote:
Sounds useful. I suppose this means one would have custom function
for within-bucket-reordering? e.g. for a web search you might reorder
based on the URL length if you think shorter URLs are an indicator of
Yes, that's precisely the idea. It combines the advantages of simple
(hence fast) scoring inside the IR system, with a complex (hence
slow) reordering of a small sample of results, performed outside the
IR system prior to delivering the results.
higher quality. It also sounds like something that can easily sit
outside Lucene....or do you have something else in mind, such as a
mechanism to pass a reordering function in Lucene?
It should definitely be something outside Lucene - it's meant for
cases that require more complex ranking (or faster) than those
available through function query. I only mentioned this here because
it is simple to implement, yet produces useful results difficult to
obtain through the usual means (similarity, boosting, even function
query).
--
Best regards,
Andrzej Bialecki <><
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