[Thuban-list] visual classifier

Daniel Calvelo dcalvelo at minag.gob.pe
Thu Dec 4 19:59:18 CET 2003

If you could get the code, I will try to include the algorithm. It might be
better to first implement it as another classifier and then work on the visual

Do you reckon any licence issues?


-- Daniel Calvelo Aros
-- Dirección General de Información Agraria
-- Ministerio de Agricultura del Perú
-- (51-1) 424-9001

---------- Original Message -----------
From: "Moritz Lennert" <mlennert at club.worldonline.be>
To: "Daniel Calvelo" <dcalvelo at minag.gob.pe>
Cc: thuban-list at intevation.de
Sent: Thu, 4 Dec 2003 19:41:34 +0100 (CET)
Subject: Re: [Thuban-list] visual classifier

> Daniel Calvelo said:
> >
> > I also explored natural breaks. I found very scarce literature on the
> > subject.
> >>From what I gathered, natural breaks are based on a kernel approximation
> >> to
> > the data distribution. From previous experience, programming these things
> > needs tuning and lots of special casing. If you have ideas on the subject,
> > they are most welcome.
> >
> We have a fortran program here which was written ages ago and which 
> uses a geometrical approach, exploring the slope between data 
> points. If you are interested I can send it to you (I will have to 
> check with the authors, but I would be very surprised if they 
> weren't willing to release the code freely).
> Moritz
------- End of Original Message -------

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