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Re: Definition of role

From: Graham Klyne <graham.klyne@zoo.ox.ac.uk>
Date: Sun, 03 Jun 2012 08:02:12 +0100
Message-ID: <4FCB0BF4.2060902@zoo.ox.ac.uk>
To: Paul Groth <p.t.groth@vu.nl>
CC: Timothy Lebo <lebot@rpi.edu>, "public-prov-wg@w3.org" <public-prov-wg@w3.org>
Paul,

It may contain useful ideas, but I find the cited paper almost unreadable.  It's 
use of [n] references as nouns in sentences, and long tracts of waffle, makes 
it's intended meaning undecipherable for me with less-than-Herculean effort.

I think what you are proposing is similar to PROV-O's use of qualified relation 
patterns.  Adding roles is easy in PROV-DM because all relations can have 
identifiers.  Mapping this to RDF, which has only 2-place relations in its 
underlying primitives, gets more complex.

Your pattern does allow a role to be clearly associated with a particular 
"position" in a relation, but I'm not seeing that provenance needs this.

#g
--

On 01/06/2012 18:06, Paul Groth wrote:
> Following up, the related work on roles in this paper[1] is somewhat
> helpful for thinking about this.
>
> I wonder if we actually want to define roles as relations between an
> instance of a relation and the entity.
>
> This way we would have the relation prov:role and would make
> subproperties of it to define new relations.
>
> For example, instead of
>
> wasAttributedTo(doc, bob, [ prov:oRole="editor", prov:sRole="bestPaper" ] ])
>
> we would have
>
> wasAttributedTo(id1; doc, bob)
> role(id1, doc, [prov:type="bestPaper")
> role(id1, bob, [prov:type="editor)
>
> Anyway, just a thought...
>
> Paul
>
>
> [1] http://ceur-ws.org/Vol-614/owled2010_submission_29.pdf
>
>
> On Fri, Jun 1, 2012 at 7:01 PM, Paul Groth<p.t.groth@vu.nl>  wrote:
>> Hi All,
>>
>> Trying to come to some route forward. If we can agree on the following
>> English definition, then we can set about finding good relation names:
>>
>> A role is the function of an entity, activity, or agent in the context
>> of a relation. The subject and object of relations may be given roles.
>>
>> Thanks
>> Paul
>>
>>
>>
>>
>> On Thu, May 31, 2012 at 10:45 PM, Luc Moreau<L.Moreau@ecs.soton.ac.uk>  wrote:
>>> tracker,
>>>
>>> This is ISSUE-384
>>>
>
>
>
Received on Sunday, 3 June 2012 07:16:23 UTC

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