Ok.  So if I get 10 Documents back from a search and I want to get the top 5 
weighted terms for each of the 10 documents what API call should I use?  I'm 
unable to find the connection between Similarity and a Document.

I know I'm missing the elephant that must be in the middle of the room.  Or 
maybe it's not there.
Is what I'm trying to do do-able?

Thanks,

Andrew

-----Original Message-----
From: Max Pfingsthorn <[EMAIL PROTECTED]>
Sent: Jun 2, 2005 5:33 AM
To: java-user@lucene.apache.org
Subject: RE: calculate wi = tfi * IDFi for each document.

Hi,

DefaultSimilarity uses exactly this weighting scheme. Makes sense since it's a 
pretty standard relevance measure...

Bye!
max

-----Original Message-----
From: Andrew Boyd [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 02, 2005 11:39
To: java-user@lucene.apache.org
Subject: calculate wi = tfi * IDFi for each document.


If I have search results how can I calculate, using lucene's API,  wi = tfi * 
IDFi for each document.

wi    = term weight
tfi    = term frequency in a document
IDFi = inverse document frequency = log(D/dfi)
dfi   = document frequency or number of documents containing term i
D    = number of documents in my search result

Thanks,

Andrew

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]


---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]



---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to