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From Ram Subbaroyan <r...@rcn.com>
Subject Lucene Scoring question
Date Tue, 08 Jun 2004 17:30:17 GMT
I have been trying to follow Lucene scoring across multiple searchables. And
I do not see where the IDF gets normalized between searchables? (Sum DF
across searchables in first half of query and use in second half of query
execution to calculate right IDF across searchables.)

Lets say you have one searchable where every document has the word "foo" (
just once) and the other searchable has the the word "foo" in just 10
documents. If you run a query on "foo" your top 10 results will only come
from the second searchable( all else being equal).

I am guessing this is not to important since most users will be randomizing
documents between searchables?

I am new to the code base, and may be missing something. Wanted to check
before I start implementing it.

Thanks

ram


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