According to that definition the Okavango is not a river. (01)
So it is a good example around the issues. Are stretches really "Parts"
of a river for example? (02)
I guess it's possible to set out too many characteristics of something,
rather than just those things which, by virtue of being true of an
individual, make it a member of that class of thing. (03)
There are also some interesting mappings between things known as a River
in English, and the terms in French for similarly river-like things. (04)
Mike (05)
Александр Шкотин wrote:
> John has ask for "river" definition (n-s-conditions).
>
> I am on a way, and have a look at this one from
> http://www.ordnancesurvey.co.uk/oswebsite/ontology/
>
> Well, this is a topographical point of view, and only n-conditions,
> but looks good (in Protege;):
>
> http://clip2net.com/clip/m3050/1234375380-clip-16kb.png
>
> Alex
>
>
>
> 2009/2/11 Ron Wheeler <rwheeler@xxxxxxxxxxxxxxxxxxxxx
> <mailto:rwheeler@xxxxxxxxxxxxxxxxxxxxx>>
>
> This is great.
> A good approach and a clear call to action.
> Does anyone want to put a link to an ontology on the wiki with a
> 'short'
> explanation of how it meets some real world need, a description of the
> domain, references to any ontologies that are based on it (in any
> way)
> and references to any applications that are known to use it or any
> standards that it describes.
> Licensing details could be added.
>
> Get your favourites in early!
> Make new friends by recommending their ontologies!
>
> Ron
>
> John F. Sowa wrote:
> > Rich,
> >
> > No. We did not agree.
> >
> > > Since John Sowa and Pat Hayes (and possibly Ian Bailey) seem
> > > to agree on the following ultra high level ontology, perhaps
> > > we should proclaim it an "Initial Ontic Standard" that can
> > > be built upon:
> >
> > -Thing
> > -Individual
> > -Type
> > -Powertype.... etc.
> >
> > I was expressing a feeling of being distinctly underwhelmed.
> >
> > If you take any version of FOL and add some basic mathematical
> > theories, including versions of set theory, mereology, etc.,
> > you'd have all that plus a great deal more.
> >
> > My basic proposal, which I have been repeating in different ways
> > for many years, is extremely simple:
> >
> > 1. Set up a registry for ontologies with minimal requirements
> > for contributions and some basic reviewing for competence.
> >
> > 2. Emphasize that ontologies should be constructed from modules,
> > and multiple use and reuse of other modules in the registry
> > should be strongly encouraged.
> >
> > 3. The sequence of uses and reuses would automatically create
> > a generalization hierarchy of ontologies -- i.e., if ontology
> > X incorporates the module Y, then Y is a generalization of X.
> >
> > 4. Any collection of modules that are frequently used and reused
> > would be high up in the generalization hierarchy, and they
> > would also be prime candidates for being "canonized" as
> > the recommended subset for further use and reuse.
> >
> > This is very simple. It doesn't require major funding to get
> > started. If a significant number of good modules are widely
> > used and reused, they would become a de facto standard -- and
> > a prime candidate for someday becoming a de jure standard.
> >
> > Anybody who had developed their favorite ontology would be
> > encouraged to submit it. Instead of having some self-appointed
> > experts decide on the best approach a priori, the developers
> > who actually do the work would decide which modules they found
> > the most useful.
> >
> > This approach reflects the natural way that people decide
> > which tools and notations to adopt for their projects.
> >
> > John
> >
> >
> >
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