No subject

modules for handling uncertainty in IDRISI and
some rather questionable/experimental stuff.

What I admire most is there implementation of
Dempster-Shafer Theory of Evidence. I have been
spending a lot of time recently to try and implement
sth. just a bit more powerful than that. For raster
maps, the functionality is basically complete, but
I still need to add support for vector maps as
sources of evidence.

Yes, the idea is to create a suite of programs like r.le
and distribute them as a sort of extension the same style
ESRI ArcGIS does it, so that you can install the modules
into a running installation of GRASS and the code does
not have to be maintained in the orginal source tree.
This can be done with a little program I am developing at the
moment.

What exactly are your research interests? Maybe you could
contribute to the program documentation and create some
good example data sets.

----- Originalnachricht -----
Von: Doc Robinson <vbr at eratos.erin.utoronto.ca>
Datum: Donnerstag, 21. Juli 2005 5:05 pm
Betreff: [GRASS5] Evidential reasoning classifier 

> Benjamin,
> are u suggesting developing modules along similar lines as those in
> IDRISI? I would imagine it would be suite of programs like r.le
> 
> let me know if u need any advice/thoughts especially on the fuzzy sets
> end of things. unfortunately at this time i am unable to offer 
> programming time ... I and my ugrad+grad students would USE such a
> module if it existed and had the functionality required for some of
> our problems.
> 
> 
> > From: benducke at compuserve.de
> > Date: July 19, 2005 7:19:27 EDT (CA)
> > To: Sajith VK <sajithvk at gmail.com>, grass5 at grass.itc.it
> > Subject: Re: [GRASS5] Evidential reasoning classifier
> > 
> > 
> > That's interesting.
> > I have been working on an implementation of Dempster
> > Shafer Theory as well (albeit for purposes of spatial
> > prediction). I am a big fan of it and pleased to see
> > that others find it useful, as well.
> > 
> > It seems to me that uncertainty management and decision
> > support is something where GRASS 6 currently lacks in comparison
> > with IDRISI. Things needed, that have been mentioned on this
> > list before include neural networks, fuzzy logics and
> > Bayes models.
> > 
> > As you may know, if you have been reading this mailing
> > list lately, I am also currently developing a program
> > that allows to install extensions into a running version
> > of GRASS 6 including menu entries, HTML docs and the
> > modules themselves. That program is about 95% finished now.
> > My own Dempster-Shafer modules are about 80% done.
> > 
> > So maybe it would be about time to join forces and create
> > a "Decision Support" extension that includes, DST, Bayes,
> > fuzzy logics, NNs in one neat package along with good
> > documentation on the mathematical background and practical
> > uses?
> > 
> > Benjamin 
> 
> -- 
> 
> Regards,
>         Doc
> 
> --------------------------------------------------------------------
>   Vincent B. Robinson       |
>  Department of Geography    | E-Mail: doc.robinson at utoronto.ca
>   University of Toronto     | Voice: (905)828-5299
>      at Mississauga         | Fax:   (905)828-5273
>   Mississauga, Ontario      |
>   Canada     L5L 1C6        |
> 
>