Re: [ontolog-forum] {Disarmed} Re: OWL and lack of identifiers

[Aldo Gangemi <aldo.gangemi@xxxxxxxxxxx>]

Hi all,

you may want to have a look at the IRW workshop from WWW2006 [1], and in particular to the IRE (Identity of Resources and Entities) ontology, presented in several papers, e.g. "The bourne identity of a web resource" available [1], "Towards an OWL ontology for identity on the web", available from [2], and "A grounded ontology for identity and reference of web resources", available soon from [3].

In IRE, "identifiers" (e.g. URIs) are distinguished on a formal ground from web resources ("realizations of information"), "information objects" (e.g. the information content of a web resource), and from entities that information objects can be "about". A set of "proxy" relations are defined to distinguish the kinds of aboutness that a resource has wrt entities. Alignments to RDFa and some commonly used web ontologies are also provided.

Sorry for not entering into the debate in more detail, hope to contribute soon.

Cheers

Aldo

[1] http://www.ibiblio.org/hhalpin/irw2006/

[2] http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS//Vol-201/

[3] http://okkam.dit.unitn.it/i3/index.php?location=home

At 16:51 +0200 14-04-2007, Hans Teijgeler wrote:

> Hi Bill,
>  
> When you speak about "book" there are two
> possibilities:
> 1- you speak about a class of representation that is
> an aggregate of other classes of representation (strings, reals,
> binaries)
> 2- you speak about members of that class, being
> ink-on-paper or pixels-on-screen, i.e. physical objects that are
> copies of that book
>  
> Normally you use 1- and use a URI for that. You use 2-
> only in case you want to manage individual copies, such as of a
> contract.
>  
> Both can be related to as many identifiers as you need
> by relating it to one or more strings. In the 2- case such
> an identifier could be the copy number. For that (and other)
> reason(s) we represent strings etc as classes with a datatype
> property. That string class has its own URI. It can be typed as
> "English" (or, denormalized for FOL fans, it can be made a
> subclass of something like "English
> text").
>  
> Regards,
> Hans
>

---

> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
> [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of
> Bill Andersen
> Sent: Saturday, April 14, 2007 16:13
> To: [ontolog-forum]
> Subject: Re: [ontolog-forum] {Disarmed} Re: OWL and lack of
> identifiers
> Hey Ken et al..
> > Ken Laskey
> > wrote:
> >
> > Thus, anything that can be identified is
> > a resource (i.e., you can use everything for something) and URIs are
> > one means (and one that has been found very useful) for providing that
> > identity.
>
> I think there's a slight confusion here. 
> It is decidedly *not* a name (which URIs are) that provides the
> identity.  Granted, URIs are meant to be *identifiers* which
> suggests that at any given time they name one and only one thing. 
> Rather, it is the primitive fact that books are individuable at all,
> for example, that allows them to be so named.  There's the
> identity.
>
> .bill
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.446 / Virus Database: 269.4.0/760 - Release Date:
> 13-Apr-07 20:04
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.5.446 / Virus Database: 269.4.0/760 - Release Date:
> 13-Apr-07 20:04
>  
> _________________________________________________________________
> Message Archives:
> http://ontolog.cim3.net/forum/ontolog-forum/ 
> Subscribe/Config:
> http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/ 
> Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
> Shared Files: http://ontolog.cim3.net/file/
> Community Wiki: http://ontolog.cim3.net/wiki/
> To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx
>

-- 

Aldo Gangemi

Senior Researcher
Laboratory for Applied Ontology
Institute for Cognitive Sciences and Technology
National Research Council (ISTC-CNR)
Via Nomentana 56, 00161, Roma, Italy
Tel: +390644161535
Fax: +390644161513
aldo.gangemi@xxxxxxxxxxx

http://www.loa-cnr.it/gangemi.html

icq# 108370336

skype aldogangemi

_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/  
Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/  
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/ 
To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx    (01)