11 jun 2008 kl. 09.14 skrev Paul Elschot:
Op Wednesday 11 June 2008 01:41:38 schreef Karl Wettin:
Each of my filters represent single boosting term queries. But when
using the filter instead o the boosting term query I loose the score
(not sure this is true) and payload boost (if any), both essential
for the quality of my results. If I was to add payloads to the bits
that are set, what is the best or simplest way to get the score back
in? How about wrapping each filter in a query?
Are there any obvious problems with this strategy that I've missed?
Why not add the boosting term queries as required
to a BooleanQuery? This has the advantage that it uses the
index data and the various caches built into Lucene and the
underlying OS.
It used to be like that. But some of my terms occurs in 50% of all the
documents and it took a very long time to match them, so I replace any
such clause with a filter.
In case you have the memory available, it is also possible to keep
the score values of any Query with the Filter and implement a Scorer
using the filter docs and these score values. Then use this as the
scorer for a new Query, via a Weight.
Once this new Query is available, just add it as required to a
BooleanQuery.
That I'll do. Thanks!
karl
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