Relevance Feedback (2)

2004-01-17 Thread Karl Koch
Hello group, I would like to implement Relevance Feedback functionality for my system. From the privious discussion in this group I know that this is not implemented in Lucene. We all know that Relevance Feedback has two fields, which are 1) Term Reweighting 2) Query Expansion I am

Re: Relevance Feedback (2)

2004-01-17 Thread Karl Koch
Hello all, oh, I just found a mail from Doug where he wrote that Dmitry Serebrennikov developed something who provides Document vector access: Dmitry Serebrennikov [dmitrys?X0040;earthlink.net] has implemented a substantial extension to Lucene which should help folks doing this sort of

Query reformulation (Relevance Feedback) in Lucene?

2003-12-03 Thread ambiesense
Hello Group of Lucene users, query reformulation is understood as a effective way to improve retrieval power significantly. The theory teaches us that it consists of two basic steps: a) Query expansion (with new terms) b) Reweighting of the terms in the expanded query User relevance feedback

RE: Query reformulation (Relevance Feedback) in Lucene?

2003-12-03 Thread Chong, Herb
. term reweighting happens by using term boost. how much you boost by is an open question. Herb... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 03, 2003 6:55 AM To: [EMAIL PROTECTED] Subject: Query reformulation (Relevance Feedback

Re: Relevance Feedback with Lucene

2002-04-02 Thread Peter Carlson
haven't looked into how I'm going to add Relevance Feedback to Lucene. however my plans were to use the Rocchio Method for term-reweighting. I followed the topic thread in the mailing list and was wondering if you guys are still discussing the issue. Also, has anyone got hold of the extension

Re: Getting the terms that matched the HitDoc? Relevance Feedback

2002-03-31 Thread Dmitry Serebrennikov
Subject: RE: Relevance Feedback From: Doug Cutting [EMAIL PROTECTED] Date: Sat, 30 Mar 2002 08:51:39 -0800 To: Lucene Users List [EMAIL PROTECTED] Dmitry Serebrennikov [[EMAIL PROTECTED]] has implemented a substantial extension to Lucene which should help folks doing this sort of research

Relevance Feedback

2002-03-29 Thread Nathan G. Freier
feedback. I haven't seen any mention of manual or automated query expansion or user relevance feedback in the Lucene documentation or FAQs. Does anyone have any experience with these processes in general and/or specifically with Lucene? If so, did you have to reimplement Lucene's Scorer

Re: Relevance Feedback

2002-03-29 Thread Steven J. Owens
On Fri, Mar 29, 2002 at 12:11:03PM -0800, Joshua O'Madadhain wrote: On Fri, 29 Mar 2002, Nathan G. Freier wrote: I'm just beginning to plan out some mechanisms for query expansion and relevance feedback. I've also been doing research in IR using the Lucene API. [...] If you'd like

Re: Relevance Feedback

2002-03-29 Thread Nathan G. Freier
to add, and constructed my own Query from these terms (using TermQuery and BooleanQuery). This makes sense to me. I'm looking to do something similar but add in a final step of allowing the user to select which terms (of those that are found to be relevant through a document relevance feedback