Re: Help Relevance Feedback (Rocchio) with lucene

Hi Andres, While there can be other ways, in general term vectors are used to extract "important terms" from top-k documents returned by the initial query. Please see getTopTerms() method in http://www.cortecostituzionale.it/documenti/news/advancedluceneeu_69.pdf Ahmet On Tuesday, June 28, 20

Help Relevance Feedback (Rocchio) with lucene

Hello I want to implement rocchio with lucene. Somebody has idea how to do it? Thanks. -- Atentamente, *Andrés Fernando Wilches Riaño* Ingeniero de Sistemas y Computación Estudiante de Maestría en Ingeniería de Sistemas y Computación Asistente Docente Universidad Nacional de Colombia

Re: Relevance Feedback Lucene+Algorithms

basic relevance feedback is not explained there. Actually I am not familiar with JSP, JUnit, Maven, etc. I guess It will take me lot of time to actually discover how the things work in demo program because I have to learn all those technologies first. Is there any documentation or some brief notes o

Re: Relevance Feedback Lucene+Algorithms

Hi Thanks for replying. I read your ppt. It is good. But the code or the basic relevance feedback is not explained there. Actually I am not familiar with JSP, JUnit, Maven, etc. I guess It will take me lot of time to actually discover how the things work in demo program because I have to learn

Re: Relevance Feedback Lucene+Algorithms

URL is http://www.cnlp.org/apachecon2005/ Koji Sekiguchi wrote: Please check Grant Ingersoll's presentation at ApacheCon 2005. He put out great demo programs for the relevance feedback using Lucene. Thank you, Koji -Original Message- From: varun sood [mailto:[EMAIL PROT

Re: Relevance Feedback Lucene+Algorithms

You might also want to look at that the LucQE project (http://sourceforge.net/projects/lucene-qe/), which implement a couple of automated relevance feedback methods including Rocchio's formula. On 2/15/06, Koji Sekiguchi <[EMAIL PROTECTED]> wrote: > Please check Grant Ingersoll

RE: Relevance Feedback Lucene+Algorithms

Please check Grant Ingersoll's presentation at ApacheCon 2005. He put out great demo programs for the relevance feedback using Lucene. Thank you, Koji > -Original Message- > From: varun sood [mailto:[EMAIL PROTECTED] > Sent: Wednesday, February 15, 2006 3:36 PM &

Relevance Feedback Lucene+Algorithms

Hi, Can anyone share the experience of how to implement Relevance Feedback in Lucene? Can someone suggest me some algorithms and papers which can help me in building an effective Relevance Feedback system? Thanks in advance. Dexter.

Re: Vector Model and Relevance Feedback

> since Lucene doesn't > currently support negative boosts See here for an approach to negative boosts: http://wiki.apache.org/jakarta-lucene/CommunityContributions Cheers Mark ___ Yahoo! Messenger

Re: Vector Model and Relevance Feedback

the number of terms per document you add, at least if you are concerned about performance. -Grant Stefan Gusenbauer wrote: I've some thoughts about Lucene and Relevance Feedback. I want to implement some variation of the Roccio Formula and there is the problem. The formula is like

Re: Vector Model and Relevance Feedback

Stefan Gusenbauer <[EMAIL PROTECTED]> writes: > Is there an add on for lucene to get a real vector representation? > Does anyone has experiences with this issue? No code, but some small thinking. You can do hacks with boosts and whatnot, but I think in the end you really want a new Query subclas

Vector Model and Relevance Feedback

I've some thoughts about Lucene and Relevance Feedback. I want to implement some variation of the Roccio Formula and there is the problem. The formula is like this: Query(new) = alpha * Query(old) + beta * Sum(Relevant Documents) - gamma * Sum(Non Relevant Documents) The relevant docu

Re: Relevance Feedback

uot;Modern Information Retrieval" by Baeza-Yates and Ribeiro-Neto for the algorithm. >>> [EMAIL PROTECTED] 09/19/05 3:46 PM >>> Does anyone have experiences with relevance feedback and lucene or just knows some good websites? thx stefan ---

Relevance Feedback

Does anyone have experiences with relevance feedback and lucene or just knows some good websites? thx stefan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]