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RE: OWL Web Ontology Language

From: Hans Teijgeler <hans.teijgeler@quicknet.nl>
Date: Thu, 16 Mar 2006 23:30:55 +0100
To: "'Danny Ayers'" <danny.ayers@gmail.com>, "'Peter F. Patel-Schneider'" <pfps@research.bell-labs.com>
Cc: <semantic-web@w3.org>
Message-ID: <001601c64949$4db8ba30$6c7ba8c0@hans>

Hi Danny,

If 'Mustang' may not be a Class, what can be? To me 'Concept' is too vague
for a class of things that are made to make 150 mph (or so).

FRBR is for books what ISO 15926 is for a facility (chemical plant, offshore
platform, etc). So yes, the Class 'Mustang' is an instance of the ISO
15926-2 Class 'ClassOfInanimatePhysicalObject', and part of an entire
taxonomy.

But my question remains: how do you link the Individual 'Ford' via a
property 'manufactures' to the extension of the Class 'Mustang'?

Regards,
Hans


-----Original Message-----
From: Danny Ayers [mailto:danny.ayers@gmail.com] 
Sent: Thursday, March 16, 2006 22:32
To: Peter F. Patel-Schneider
Cc: hans.teijgeler@quicknet.nl; bdn_01@hotmail.com; semantic-web@w3.org
Subject: Re: OWL Web Ontology Language

On 3/16/06, Peter F. Patel-Schneider <pfps@research.bell-labs.com> wrote:
>
> From: "Hans Teijgeler" <hans.teijgeler@quicknet.nl>
> Subject: RE: OWL Web Ontology Language
> Date: Thu, 16 Mar 2006 21:29:07 +0100
>
> > Or the example I raised in the past:
> > How do you represent the fact that the Ford Company (an Individual) 
> > manufactures Mustangs (a Class)?
> > Hans
>
> Well, again, just what do you mean here?

A very good question. Although OWL has the concept of Class, maybe what you
want is the class of Concept. I'm not entirely sure, but I've a feeling Ford
Mustangs could be modelled pretty usefully using SKOS [1] and/or FRBR [2].
The former has Broader/NarrowerInstantive, the latter distinguishes between
a Work and a Manifestation (of the work).
This kind of loosening/indirection does mean that subsumption reasoning
isn't directly available, but being able to make a more accurate model of
real world may in many cases be worth the cost.

Cheers,
Danny.

[1] http://www.w3.org/TR/swbp-skos-core-guide
[2] http://vocab.org/frbr/core


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Received on Thursday, 16 March 2006 22:31:29 GMT

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