On Jan 9, 2009, at 12:56 PM, Eric Kilby wrote:
Each document has a multivalued field, with 1-n values in it (as
many as
20). The actual values don't matter to me, but the number of values
is a
rough proxy for the quality of a record. I'd like to apply a very
small
boost based on the number of values in that field, so that among a
set of
similar documents the ones with more values will score higher and
sort ahead
of those with less values.
The simplest technique would be to have your indexer add another field
with the count (or some boost factor based on it), and then leverage
that. Perhaps even use the document boost capability at indexing time.
Erik
