On May 13, 2009, at 3:04 AM, liat oren wrote:
Thanks a lot, Grant. Yes, this is the case, it is longer than TTD.
Can you also explain me Why in finlin, we have the doc 35433 and in
TTD, its
20?
Are these the number of dcuments that contain any of the elements
exist in
eaxh word.
My understanding is that 35,433 is the combination of the length of
the document (the one you are "explaining") plus any boosts that you
applied and would also factor in any custom similarity.
So, how many tokens are in each of those documents?
So if word TTD contains only 6621468, then 20 is the number of
documents
(words) that contain 6621468?
I don't think this is the case as I checked and the index doesn;t
have 35433
documents that contain 6621468 or 5265266
2009/5/11 Grant Ingersoll <gsing...@apache.org>
On May 10, 2009, at 5:59 AM, liat oren wrote:
The output is the following:
*finlin, score: 19.366615*
19.366615 = (MATCH) fieldWeight(worlds:6621468^3.0 in 35433),
product of:
4.2426405 = (MATCH) btq, product of:
0.70710677 = tf(phraseFreq=0.5)
6.0 = scorePayload(...)
7.3036084 = idf(worlds: 6621468=110)
0.625 = fieldNorm(field=worlds, doc=35433)
*TTD, score: 15.493294*
15.493293 = (MATCH) fieldWeight(worlds:6621468^3.0 in 20), product
of:
2.1213202 = (MATCH) btq, product of:
0.70710677 = tf(phraseFreq=0.5)
3.0 = scorePayload(...)
7.3036084 = idf(worlds: 6621468=110)
1.0 = fieldNorm(field=worlds, doc=20)
Can anyone explain me the highlighted parts of the score?
I read all the explanations in the api and read a lot of threads
about the
scoring, but didn't really understand these factors.
Why in finlin, we have the doc 35433 and in TTD, its 20?
http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/search/Similarity.html
fieldNorm = norm (not sure why the docs aren't consistent) The
norm takes
into account document length and boosts (
http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/search/Similarity.html#formula_norm
)
The gist of what you are seeing , I believe, is that finlin is a
lot longer
than TTD. Is that the case?
--------------------------
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