- From: Bdn 01 <bdn_01@hotmail.com>
- Date: Thu, 16 Mar 2006 21:16:54 +0000
- To: hans.teijgeler@quicknet.nl, pfps@research.bell-labs.com
- Cc: semantic-web@w3.org
Exactly. But moreover I'd like to extend the owlx schema <ObjectPropertyValue property = xsd:anyURI {required} > Content: ( Individual[axiom]* ) </ObjectPropertyValue> to be: <ObjectPropertyValue property = xsd:anyURI {required} > Content: ( Individual[axiom]*, Class, description ) </ObjectPropertyValue> This would then be in line with Owl Full, wouldn't it? Brendan >From: "Hans Teijgeler" <hans.teijgeler@quicknet.nl> >To: "'Peter F. Patel-Schneider'" <pfps@research.bell-labs.com>, ><bdn_01@hotmail.com> >CC: <semantic-web@w3.org> >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 > >-----Original Message----- >From: semantic-web-request@w3.org [mailto:semantic-web-request@w3.org] On >Behalf Of Peter F. Patel-Schneider >Sent: Thursday, March 16, 2006 20:25 >To: bdn_01@hotmail.com >Cc: semantic-web@w3.org >Subject: Re: OWL Web Ontology Language > > >public-webont-comments@w3.org is probably not the best email list for this >sort of question, as the list is designed for comments about the OWL >documents themselves. However, let me take a stab at your question anyway. >I've cc'ed semantic-web@w3.org which is probably a better list for this >kind >of question. > >From: "Bdn 01" <bdn_01@hotmail.com> >Subject: OWL Web Ontology Language >Date: 4 Mar 2006 14:59:33 -0800 > > > OWL Web Ontology (XML Presentation Syntax) > > Date: Sat, 04 Mar 2006 22:59:28 +0000 > > Mime-Version: 1.0 > > Content-Type: text/plain; format=flowed > > > > Hello, > > > > I have been following the development of the web ontology work for > > over a year now and found the work on this topic extremely exciting. I > > do now however have a concern that it does not cater for the situation > > where an individual's property value may be neither a datatype, or > > another Individual, but rather a class. > > > > The reason I write is I would prefer to correctly apply the [OWL] > > standards than extend the standards to cater for what (to me at least) > > seems to be a standard case. I have posted the example below to help > > ilustrate this > > scenario: > > > > How to express that a child has a preference for dogs rather than cats > > as a pet? > > - A given child is an individual with property "hasPetPreference". > > - A dog or a cat is a class (we should allow for identifying an actual > > beast as an individual having class dog or cat). > > > > Rgds > > Brendan > > >The problem with all such examples is determining just what they are >supposed to mean. Do you want to say that the preference is somehow for >the >class "Dog" >versus the class "Cat", as, perhaps, one might prefer "PrimeNumber" to >"OddInteger" because the class of prime numbers are somehow more >interesting >than the class of odd integer; do you want to say that the preference is >somehow for most dogs over most cats; or do you want to say that the >preference is somehow for all dogs over all cats. True modelling should >take the differences into account. > >All that said, there is an effort to extend OWL in a way that gives you a >light-weight way to at least state a relationship between an individual and >a class. In this extension, OWL 1.1, class names can be also used as names >of individuals, so you could state > > Class(Dog) > Class(Cat) > ObjectProperty(hasPetPreference) > Individual(john value(hasPetPreference Dog)) > Individual(jill value(hasPetPreference Cat)) > >For more information on OWL 1.1, see >http://owl-workshop.man.ac.uk/OWL1_1.html > >Peter F. Patel-Schneider >Bell Labs Research > >-- >No virus found in this incoming message. >Checked by AVG Free Edition. >Version: 7.1.385 / Virus Database: 268.2.4/282 - Release Date: 15-Mar-06 > > >-- >No virus found in this outgoing message. >Checked by AVG Free Edition. >Version: 7.1.385 / Virus Database: 268.2.4/282 - Release Date: 15-Mar-06 > >
Received on Thursday, 16 March 2006 21:17:03 UTC