W3C home > Mailing lists > Public > public-prov-wg@w3.org > November 2011

Re: PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data Model]

From: Timothy Lebo <lebot@rpi.edu>
Date: Tue, 22 Nov 2011 12:45:45 -0500
Cc: Paul Groth <p.t.groth@vu.nl>, Jim McCusker <mccusj@rpi.edu>, Luc Moreau <L.Moreau@ecs.soton.ac.uk>, Provenance Working Group WG <public-prov-wg@w3.org>
Message-Id: <B6D78511-B86C-4BFE-8498-FBEF68085B26@rpi.edu>
To: Graham Klyne <GK@ninebynine.org>

On Nov 10, 2011, at 9:04 AM, Graham Klyne wrote:

> Paul,
> 
> While that can be done, it may cause headaches for the OWL ontology, ifone tries to stay within OWL DL.  I'm ambivalent about the importance of this.

It won't be a problem in OWL, because by the time it is encoded as RDF, the DM's "Literals" will be legitimate URIs.

-Tim

> 
> #g
> --
> 
> On 06/11/2011 15:48, Paul Groth wrote:
>> Hi Jim
>> 
>> I think to address Tim's issue we should just allow qualifiers to be Literal=
>> s or Identifiers as defined by prov-dm.=20
>> 
>> Then one can use uris for roles without breaking compatibility with prov-DM
>> 
>> Was that your suggestion ?=20
>> 
>> Cheers
>> Paul
>> 
>> On Nov 6, 2011, at 16:19, Jim McCusker<mccusj@rpi.edu>  wrote:
>> 
>>> Make Roles resources like Entities. Classes of Roles (Creator,
>>> Publisher, PrincipleInvestigator) are instantiated for each Entity. Of
>>> course, this is rather similar to what's been rejected (?), but is
>>> still the best choice, IMO. This would be, for instance, "Barack
>>> Obama's role as president", as opposed to "the role of president",
>>> which would be a class.
>>> 
>>> Role could also be an extension of skos:Concept and allow you to
>>> express "the role of president" directly without custom instantiation.
>>> 
>>> Jim
>>> 
>>> On Sun, Nov 6, 2011 at 8:38 AM, Luc Moreau<L.Moreau@ecs.soton.ac.uk>  wrote:
>>>> Ok, so, what's alternative suggestion ?
>>>> 
>>>> Professor Luc Moreau
>>>> Electronics and Computer Science
>>>> University of Southampton
>>>> Southampton SO17 1BJ
>>>> United Kingdom
>>>> 
>>>> 
>>>> On 6 Nov 2011, at 12:59, "Jim McCusker"<mccusj@rpi.edu>  wrote:
>>>> 
>>>>> This is a misunderstanding of a URI literal versus URI resource. When
>>>>> a URI resource is used, it can link to that resource when it has
>>>>> assertions made about it. This is not possible or intended with URI
>>>>> literals.
>>>>> 
>>>>> Jim
>>>>> 
>>>>> On Sun, Nov 6, 2011 at 2:36 AM, Luc Moreau<L.Moreau@ecs.soton.ac.uk>  wrote:
>>>>>> Hi Tim,
>>>>>> 
>>>>>> But doesn't this include URIs by means of typed literals?
>>>>>> 
>>>>>> Professor Luc Moreau
>>>>>> Electronics and Computer Science
>>>>>> University of Southampton
>>>>>> Southampton SO17 1BJ
>>>>>> United Kingdom
>>>>>> 
>>>>>> On 6 Nov 2011, at 01:20, "Provenance Working Group Issue Tracker"<sysbot+tracker@w3.org>  wrote:
>>>>>> 
>>>>>>> 
>>>>>>> PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data Model]
>>>>>>> 
>>>>>>> http://www.w3.org/2011/prov/track/issues/142
>>>>>>> 
>>>>>>> Raised by: Timothy Lebo
>>>>>>> On product: Data Model
>>>>>>> 
>>>>>>> prov-dm, 5.5.1 Qualifier:
>>>>>>> 
>>>>>>> "The value associated with a role attribute must be conformant with Literal."
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> Will this prevent PROV-O from using URIs to cite roles?
>>>>>>> 
>>>>>>> Restricting roles to literals will be severely limiting for PROV-O and semantic web applications, since literals cannot be described or served as linked data, and thus consumers will be unable to determine more information about what the role means.
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> --
>>>>> Jim McCusker
>>>>> Programmer Analyst
>>>>> Krauthammer Lab, Pathology Informatics
>>>>> Yale School of Medicine
>>>>> james.mccusker@yale.edu | (203) 785-6330
>>>>> http://krauthammerlab.med.yale.edu
>>>>> 
>>>>> PhD Student
>>>>> Tetherless World Constellation
>>>>> Rensselaer Polytechnic Institute
>>>>> mccusj@cs.rpi.edu
>>>>> http://tw.rpi.edu
>>>> 
>>>> 
>>> 
>>> 
>>> 
>>> --
>>> Jim McCusker
>>> Programmer Analyst
>>> Krauthammer Lab, Pathology Informatics
>>> Yale School of Medicine
>>> james.mccusker@yale.edu | (203) 785-6330
>>> http://krauthammerlab.med.yale.edu
>>> 
>>> PhD Student
>>> Tetherless World Constellation
>>> Rensselaer Polytechnic Institute
>>> mccusj@cs.rpi.edu
>>> http://tw.rpi.edu
>>> 
>> 
>> 
> 
> 
Received on Tuesday, 22 November 2011 17:46:50 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 16:51:04 UTC