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From Doug Cutting <>
Subject RE: Relevance Feedback
Date Sat, 30 Mar 2002 16:51:39 GMT
Dmitry Serebrennikov [] has implemented a substantial
extension to Lucene which should help folks doing this sort of research.  It
provides an explicit vector representation for documents.  This way you can,
e.g., retrieve a number of documents, efficiently sum their vectors, then
derive a new query from the sum.  This code was posted to the list a long
while back, but is now out of date.  As soon as the 1.2 release is final,
and Dmitry has time, he intends to merge it into Lucene.


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