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From <joaquin.pe...@lsi.uned.es>
Subject Re: Summer of Code idea for lucene
Date Sat, 13 Sep 2008 17:48:32 GMT
Hi Mark,

thank you for your advice, I don't know too much about licenses.
I have just changed the license to Apache-2.0, hope that this will be ok, and make things
easier.

If you need any help or have some comments about the implementation, please let me know. I
would be really happy if this implementation is finally integrated into Lucene.

Joaquín.

-----------------------------------------------------------
Joaquín Pérez Iglesias
Dpto. Lenguajes y Sistemas Informáticos
E.T.S.I. Informática (UNED)
Ciudad Universitaria
C/ Juan del Rosal nº 16
28040 Madrid - Spain
Phone. +34 91 398 87 25
Fax +34 91 398 65 35
Office 2.07
Email: joaquin.perez@lsi.uned.es
-----------------------------------------------------------

Mark Miller <markrmiller@gmail.com> escribe :

> Hey Joaquin,
> 
> Your work here looks very interesting. The Lucene community has shown a 
> strong interest in this area before (see LUCENE-965).
> 
> I see you went with an lgpl license though. This might be a bit of a 
> barrier in getting feedback from a community based on apache license 
> software. Obviously, there still might be interest,learning, and an 
> exchange of ideas, but none of your code can be distributed with Lucene, 
> and so what you have done loses some of its appeal in that sense. Is 
> there any chance you would be willing to relax the license, possibly 
> gaining more feedback, contributors, and possible inclusion in Lucene? 
> Certainly not necessary to receive feedback, but I think it would help 
> -- I'd certainly be looking closer anyway.
> 
> - Mark
> 
> Joaquin Perez Iglesias wrote:
> > Hi all,
> >
> > finally I got some time to finish the BM25/BM25F implementation for 
> > Lucene you can find more details at 
> > http://nlp.uned.es/~jperezi/Lucene-BM25/,
> it has been tested but I 
> > cannot assure that is bugs free.
> > It would be great to receive some feedback about it.
> >
> > There are some details about the implementation that I consider will 
> > be of interest,as how to calculate the average_length or  idf at 
> > document level.
> > Please if you find any bug or mistake in the supplied implementation 
> > let me know and I will try to solve it, same for questions.
> >
> > Hope that some of you will find useful.
> >
> > Thanks in advance.
> >
> >
> >
> > joaquin.perez@lsi.uned.es
> escribió:
> >> Hi Otis,
> >>
> >> as my colleague said, we have a first implementation of BM25 over 
> >> Lucene, this development is part of a (almost finished) thesis 
> >> project that compares different IR models, over an standard 
> >> collection. At the same time we are trying to extend this first 
> >> implementation in order to support BM25F for multifield queries, 
> >> unfortunately at this time we are too busy to prepare a final version
> 
> >> of this code, so we will have to finish this code over the summer 
> >> (hopefully we will have more time :-))), and make it public at this
> 
> >> time.
> >>
> >> We will inform to this list when we will finish the preparation of a
> 
> >> final version.
> >>
> >> Thanks to everybody for the interest!!!
> >>
> >> Bye
> >> Joaquin
> >>
> >> -----------------------------------------------------------
> >> Joaquín Pérez Iglesias
> >> Dpto. Lenguajes y Sistemas Informáticos
> >> E.T.S.I. Informática (UNED)
> >> Ciudad Universitaria
> >> C/ Juan del Rosal nº 16
> >> 28040 Madrid - Spain
> >> Phone. +34 91 398 87 25
> >> Fax    +34 91 398 65 35
> >> Office  2.07
> >> Email: joaquin.perez@lsi.uned.es
> >> ----------------------------------------------------------- Otis 
> >> Gospodnetic <otis_gospodnetic@yahoo.com>
> escribe :
> >>
> >>  
> >>> Hi Jose,
> >>>
> >>> I was wondering if you ever got to this.  I would love to see and
> 
> >>> try BM25 for
> >>> Lucene!
> >>>
> >>>
> >>> I'm looking at http://code.google.com/soc/2008/asf/about.html
> >>> and it looks like this didn't make it into GSoC, but this would
> 
> >>> still be great
> >>> to have.
> >>>
> >>> Thanks,
> >>> Otis
> >>> -- 
> >>> Sematext -- http://sematext.com/ --
> >>> Lucene - Solr - Nutch
> >>>
> >>>
> >>> ----- Original Message ----
> >>>    
> >>>> From: José Ramón Pérez Agüera <jose.aguera@gmail.com>
> >>>> To: java-dev@lucene.apache.org;
> >>>>       
> >>> Joaquin Perez-Iglesias <joaquin.perez.iglesias@gmail.com>
> >>>    
> >>>> Sent: Saturday, March 15, 2008 4:54:08 AM
> >>>> Subject: Re: Summer of Code idea for lucene
> >>>>
> >>>> we have almost implemented BM25 using lucene structure, but we
> need
> >>>> help to finish query parser and other details. If you o
> somebody want
> >>>> We can send you the code and you can help us to implement the
> query
> >>>> parser and prepare the code to sandbox.
> >>>>
> >>>> If there are people interested I can made a web page for the
> project
> >>>> and put our implementatio to download
> >>>>
> >>>> Somebody is interested?
> >>>>
> >>>> jose
> >>>>
> >>>> -- 
> >>>> José Ramón Pérez Agüera
> >>>>
> >>>> Dept. de Ingeniería del Software e Inteligencia Artificial
> >>>> Despacho 411 tlf. 913947599
> >>>> Facultad de Informática
> >>>> Universidad Complutense de Madrid
> >>>>
> >>>> On Sat, Mar 15, 2008 at 5:32 AM, Ian Holsman wrote:
> >>>>      
> >>>>> If no one objects (I don't think it's too late)
> >>>>>
> >>>>>  would you mind a GSOC project to implement BM25
> >>>>>         
> >>> relevancy/scoring?
> >>>     
> >>>
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> >>> For additional commands, e-mail: java-dev-help@lucene.apache.org
> >>>     
> >>
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> >>
> >>
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> >>
> >>
> >>   
> >
> 
> 
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