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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject RE: TFIDF Implementation
Date Tue, 14 Dec 2004 18:32:15 GMT
You can also see 'Books like this' example from here
https://secure.manning.com/catalog/view.php?book=hatcher2&item=source

Otis

--- Bruce Ritchie <bruce@jivesoftware.com> wrote:

> Christoph,
> 
> I'm not entirely certain if this is what you want, but a while back
> David Spencer did code up a 'More Like This' class which can be used
> for generating similarities between documents. I can't seem to find
> this class in the sandbox so I've attached it here. Just repackage
> and test.
> 
> 
> Regards,
> 
> Bruce Ritchie
> http://www.jivesoftware.com/   
> 
> > -----Original Message-----
> > From: Christoph Kiefer [mailto:kiefer@ifi.unizh.ch] 
> > Sent: December 14, 2004 11:45 AM
> > To: Lucene Users List
> > Subject: TFIDF Implementation
> > 
> > Hi,
> > My current task/problem is the following: I need to implement 
> > TFIDF document term ranking using Jakarta Lucene to compute a 
> > similarity rank between arbitrary documents in the constructed
> index.
> > I saw from the API that there are similar functions already 
> > implemented in the class Similarity and DefaultSimilarity but 
> > I don't know exactly how to use them. At the time my index 
> > has about 25000 (small) documents and there are about 75000 
> > terms stored in total.
> > Now, my question is simple. Does anybody has done this before 
> > or could point me to another location for help?
> > 
> > Thanks for any help in advance.
> > Christoph 
> > 
> > --
> > Christoph Kiefer
> > 
> > Department of Informatics, University of Zurich
> > 
> > Office: Uni Irchel 27-K-32
> > Phone:  +41 (0) 44 / 635 67 26
> > Email:  kiefer@ifi.unizh.ch
> > Web:    http://www.ifi.unizh.ch/ddis/christophkiefer.0.html
> > 
> > 
> >
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> > 
> > 
> 
> >
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