Karl Koch wrote:
Are there any other papers that regard the combination of coordination level matching and TFxIDF as advantageous?
We independently developed coordination-level matching combined with
TFxIDF when I worked at Apple. This is documented in:
Karl Koch wrote:
If I do not misunderstand that extract, I would say it suggests the combination of coordination level matching with IDF. I am interested in your view and those who read this?
I understand that sentence:
The natural solution is to correlate a term's matching value with its
-user@lucene.apache.org
Betreff: Re: Lucene scoring: coord_q_d factor
Karl Koch wrote:
If I do not misunderstand that extract, I would say it suggests the
combination of coordination level matching with IDF. I am interested in your
view and those who read this?
I understand that sentence
Soeren Pekrul wrote:
The score for a document is the sum of the term weights w(tf, idf) for
each containing term. So you have already the combination of
coordination level matching with IDF. Now it is possible that your query
requests three terms A, B and C. Two of them (A and B) are quite
FYI: The Wiki has a fair number of resources on IR: http://
wiki.apache.org/jakarta-lucene/InformationRetrieval (I have added a
link to this conversation, which contains a lot of useful information)
Karl, if you are so inclined, please feel free to add any of the
references you have found
Do you know about any papers that discuss this?
Karl
Original-Nachricht
Datum: Wed, 13 Dec 2006 10:31:41 -0500
Von: Yonik Seeley [EMAIL PROTECTED]
An: java-user@lucene.apache.org
Betreff: Re: Lucene scoring: coord_q_d factor
On 12/13/06, Karl Koch [EMAIL PROTECTED] wrote
On Wednesday 13 December 2006 16:42, Karl Koch wrote:
Do you know about any papers that discuss this?
Coordination is called co-ordination In the original idf paper by
K. Spärck Jones, A statistical interpretation of term specificity
and its application in retrieval., Journal of Documentation
Hello group,
The coord(q,d) normalisation is a score factor based on how many of the query
terms are found in the specified document. and described here:
http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Similarity.html#formula_coord
Does this have a theoretical base? On what
Karl Koch wrote:
The coord(q,d) normalisation is a score factor based on how many of
the query terms are found in the specified document. and described
here:
http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Similarity.html#formula_coord
Does this have a theoretical base? On
Karl Koch wrote:
Is there any other paper that actually shows the benefit of doing
this particular normalisation with coord_q_d? I am not suggesting
here that it is not useful, I am just looking for evidence how the
idea developed.
I think it's a mischaracterization to call coordination a
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