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From lionel duboeuf <>
Subject Document Frequency for a set of documents
Date Fri, 05 Feb 2010 09:27:28 GMT

Sorry for asking again, **I still have not found a scalable solution to 
get the document frequency of a term t according a set of documents. 
Lucene only store the document frequency for the global corpus, but i 
would like to be able to get the document frequency of a term according 
only to a subset of documents (i.e. a user's collection of documents).

I guess that querying the index to get the number of hits for each term 
and for each field,  filtered by a user will be to slow.
Any idea ?




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