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Re: PROV-ISSUE-526: Data Model Section 5.5.2 [prov-dm]

From: Luc Moreau <l.moreau@ecs.soton.ac.uk>
Date: Tue, 25 Sep 2012 15:43:44 +0100
Message-ID: <EMEW3|fa32dee8776f3994f1913e8ee7643beao8OFhi08l.moreau|ecs.soton.ac.uk|5061C320.8070502@ecs.soton.ac.uk>
To: public-prov-wg@w3.org

Hi Paolo,

On 25/09/2012 15:11, Paolo Missier wrote:
> The definition is indeed vague to the point that making two entities 
> alternates seems arbitrary.
> To me this means that one can always assert the equivalence amongst 
> two entities if *you* think they are aspects of the same thing, just 
> like one can assert owl:sameAs, and then live with the consequences.

+1
> For instance
> a alternateOf b
> b alternateOf c
> a specializationOf c
> would not be consistent if you do the reasoning.
>

why?

Luc
> --Paolo
>
>
>
> On 9/25/12 8:15 AM, Luc Moreau wrote:
>> Hi all,
>>
>> Can someone make suggestions regarding "how to determine when two 
>> entities are considered alternates of each other, or when they are not".
>>
>> Our definition states "Two alternate ◊ entities present aspects of 
>> the same thing. These aspects may be the same or different, and the 
>> alternate entities may or may not overlap in time."
>>
>>
>> Thanks,
>> Luc
>>
>> On 10/09/12 09:51, Provenance Working Group Issue Tracker wrote:
>>> PROV-ISSUE-526: Data Model Section 5.5.2 [prov-dm]
>>>
>>> http://www.w3.org/2011/prov/track/issues/526
>>>
>>> Raised by: Luc Moreau
>>> On product: prov-dm
>>>
>>>
>>>
>>> http://www.w3.org/2011/prov/wiki/LC_Feedback#Data_Model_Section_5.5.2
>>>
>>> ISSUE-463
>>>
>>> It is not clear how to determine when two entities are considered 
>>> alternates of each other, or when they are not. Please add more 
>>> explanation, as this will be important for computational reasoning 
>>> over provenance information.
>>>
>>> Through the definition of Influence (figure 8), the relationship 
>>> "alternateOf" should require an ID and support an optional list of 
>>> attributes.
>>>
>>>
>>>
>>>
>>>
>>>
>>
>
>

-- 
Professor Luc Moreau
Electronics and Computer Science   tel:   +44 23 8059 4487
University of Southampton          fax:   +44 23 8059 2865
Southampton SO17 1BJ               email: l.moreau@ecs.soton.ac.uk
United Kingdom                     http://www.ecs.soton.ac.uk/~lavm
Received on Tuesday, 25 September 2012 14:47:34 GMT

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