Re: Reflexivity and antisymmetry uses cases?
2007-01-09 15:47:12 GMT
Not sure whether this would address your immediate need, but ResearchCyc contains an extensive classification of temporal properties, inspired by James Allen's work on actions and events, many of which exemplify these metaproperties. (It also contains several variants of RCC8, but for that the best documentation is probably this:
I think you can get a copy of ResearchCyc rather easily from Cycorp itself ( http://research.cyc.com/). Regards,
> we are looking into the user interface requirements that will
> be needed to support OWL 1.1. Toward this end, we are
> interested in understanding the use cases in support of the
> various new features of OWL 1.1. I can easily make sense of
> user-defined datatypes and QCRs, but I don't think I had seen
> a lot of examples for some of the other proposed features so
> far (except for toy ontologies):
> - owl:SelfRestriction
> - owl:IrreflexiveProperty
> - owl:AntiSymmetricProperty
> If you know of a published list of use cases (either formal
> or informal), or if you have your own use case for any of
> these features, I would be interested in seeing them.
It is argued that reflexivity is required when modelling mereology. See
I think these properties of OWL 1.1 could certainly have applications in
the geospatial domain. For example we might want to say that all rivers
flow into rivers, seas or lakes but they cannot flow into themselves. I
guess we could do this as follows:
River -> flowsInto some (River or Sea or Lake) and not flowsInto Self
Many topological relationships (for example those of RCC8) would be
irreflexive and antisymmetric.
These properties might also be useful in modelling topology with some
notion of orientation. Properties such as "northOf", "eastOf", "leftOf",
"above" etc. would be antisymmetric and antisymmetric.
As we experiment more with OWL1.1 I can probably come up with more
Dr John Goodwin
Research Labs, Ordnance Survey
Room C530, Romsey Road, SOUTHAMPTON, United Kingdom, SO16 4GU
Phone: +44 (0) 23 8030 5756 | Mobile: +44 (0) 7xxx xxxxxx | Fax: +44 (0)
23 8030 5072
www.ordnancesurvey.co.uk | john.goodwin-eeH4FGg25xZJdN//YOkCndBc4/FLrbF6@public.gmane.org
Please consider your environmental responsibility before printing this
This email is only intended for the person to whom it is addressed and may contain confidential information. If you have received this email in error, please notify the sender and delete this email which must not be copied, distributed or disclosed to any other person.
Unless stated otherwise, the contents of this email are personal to the writer and do not represent the official view of Ordnance Survey. Nor can any contract be formed on Ordnance Survey's behalf via email. We reserve the right to monitor emails and attachments without prior notice.
Thank you for your cooperation.
Southampton SO16 4GU
Tel: 08456 050505
# Pierluigi Miraglia pierlu.m
# Austin, Tex.