- From: Toby Inkster <tai@g5n.co.uk>
- Date: Sat, 5 Sep 2009 00:40:54 +0100
- To: Dan Brickley <danbri@danbri.org>
- Cc: AzamatAbdoullaev <abdoul@cytanet.com.cy>, "[ontolog-forum]" <ontolog-forum@ontolog.cim3.net>, "<semantic-web@w3.org>" <semantic-web@w3.org>
On 4 Sep 2009, at 21:30, Dan Brickley wrote: > Given two event descriptions, in rdf, owl or similar... how would > you determine whether these documents described one event or two > different events? If you think about the obvious properties an event has - e.g. time and location - it appears there are no single one or combination of them could act as a natural inverse functional property. Nevertheless, for certain subsets of the class of events, IFPs can be found: * For things like concerts, a property :ticket with rdfs:domain :Event and rdfs:range :Ticket is an IFP. * For events representing, say, checkins to a subversion repository, each checkin is given a unique, sequential identifier which, when combined with the address of the repository acts as an identifier. -- Toby A Inkster <mailto:mail@tobyinkster.co.uk> <http://tobyinkster.co.uk>
Received on Friday, 4 September 2009 23:41:34 UTC