Hey Eric,
Eri*K* :)
What did you do to calc similarity?
I computed the angle between two vectors. The vectors are obtained from IndexReader.getTermFreqVector(docId, "field").
I haven't had time, but was thinking of ways to add the ability to get the similarity score (as calculated when doing a search) given a term vector (or just a document id).
It would be quite compute-intensive to do something like this. This could be done through a custom sort as well, if applying it at the scoring level doesn't work. I haven't given any thought to how this could work for scoring or sorting before, but does sound quite interesting.
Any ideas on how to approach this would be appreciated. The scoring in Lucene has always been a bit confusing to me, despite looking at the code several times, especially once you get into boolean queries, etc.
No doubt that it is confusing - to me also. But Explanation is your friend.
Erik
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