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Re: [w3photo] Comments of Jennifer Golbeck's conference ontology

From: Jennifer Golbeck <golbeck@cs.umd.edu>
Date: Wed, 14 Jan 2004 02:19:42 -0500 (EST)
To: WWW2004 Photo Annotation List <semantic-photolist@unitboy.com>
Message-ID: <Pine.SOL.4.33.0401140214120.6245-100000@laffytaffy.cs.umd.edu>


Thanks for your comments, Nick. I've adopted both of the suggestions that
you made below. The updated ontology is still in OWL Lite, and is still
available at http://www.mindswap.org/~golbeck/web/www04photo.owl.


-Jen Golbeck


On Tue, 13 Jan 2004, Nick Gibbins wrote:

> Hi all,
>
> I've been looking at the ontology Jennifer Golbeck presented for
> representing information about conferences. Overall, the ontology is fine
> and captures the domain in about the right amount of detail, and there are
> only two areas in which I think that the ontology needs clarification or
> amendment.
>
> - Date and Time
>
>   Why are these resources rather than datatyped literals? (I'm assuming
>   because there are inverses of the hasStartTime/hasEndTime properties)
>
>   What's the relation between times and dates? Are there detailed
>   properties which give the components of dates and times, or are they
>   completely opaque?
>
>   I'd be in favour of datatyped literals instead of resources here (I'm
>   not sure how useful the inverse properties above are likely to be),
>   preferably as XML Scheme dateTime (CCYY-MM-DDThh:mm:ss)
>
> - Conferences/workshops have at least one start/end date
>   (i.e. are a subclass of the restriction of things with at least one
>   start/end date). I'm not sure that this makes sense - can a conference
>   have more than one of each? Suggest this be changed from
>   owl:minCardinality to owl:cardinality
>
> --
> Nick Gibbins                                            nmg@ecs.soton.ac.uk
> IAM (Intelligence, Agents, Multimedia)             tel: +44 (0) 23 80598347
> Electronics and Computer Science                   fax: +44 (0) 23 80592865
> University of Southampton
>
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Received on Wednesday, 14 January 2004 02:22:09 GMT

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