29 aug 2007 kl. 21.37 skrev Tim Sturge:
That's exactly my question. I feel like
for (i = 0 ; i < XXXX ; i++) {
document.add(new Field("anchor","USA"));
}
is exactly equivalent to
field = new Field("anchor","USA"));
field.setBoost(YYYY);
document.add(field);
but I don't know the function that relates XXXX and YYYY. I feel
like there's a correct information-theorectical answer and I'd like
to know what it is.
You would have to refactor norm(t,d) in this computation:
http://lucene.zones.apache.org:8080/hudson/job/Lucene-Nightly/javadoc/
org/apache/lucene/search/Similarity.html
However, field boost is merged in to the document boost, so it might
not translate that easy as you want. Perhaps payloads and
BoostingTermQuery fits your needs better.
--
karl
Tim
Karl Wettin wrote:
29 aug 2007 kl. 19.13 skrev Tim Sturge:
I'm looking for a boost when the anchor text is more commonly
associated with one topic than another. For example the United
States of America
is called "USA" by a lot of people. The United Space Alliance is
also called "USA" but by many less people.
If I just index them both with "USA" once, they will rank
equally. I want the United States of America to rank higher.
Why not use Field#setBoost(float)?
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