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Re: DPV semantics: how to specify values?

From: Harshvardhan J. Pandit <me@harshp.com>
Date: Thu, 2 Apr 2020 13:46:46 +0100
To: Víctor Rodríguez Doncel <vrodriguez@fi.upm.es>, public-dpvcg@w3.org
Message-ID: <4154d138-c7a2-1b4a-7951-a50fc258703d@harshp.com>
Hi Victor, all.
Victor - Thanks for the reply.
This confirms my understanding of the use of DPV.

Unless there are counter or alternate arguments to this -
I think we can move ahead with this for examples in the Primer and 
elsewhere.

Regards,
Harsh

On 01/04/2020 17:33, Víctor Rodríguez Doncel wrote:
> Dear Harsh, all,
>
> The authors of paper [1] proceeded following a common pattern, and I 
> would advocate for option 1.
>
> In this pattern, dpv:Collection is a class representing an action 
> --please note that you defined dpv:Collection as "to gather data from 
> someone", which is a verb.
> Instances of that class are specific executions of that actions. "what 
> Victor collected yesterday", "the collection of Harsh tomorrow", "the 
> collection of the person requesting this personal data handling".
> Consequently, the anonymous modelling of the authors of [1] is correct.
>
> As a second reason, the property hasProcessing has dpv:Processing as 
> range. From here, reasoners will infer that dpv:Collect is of type 
> dpv:Processing, and hence a classs individual. Thus, if I am not 
> wrong, dpv:Collect will be both class and instance. This was directly 
> forbidden in OWL1, but accepted in OWL2 [2] ("punning"). So it will be 
> ok but maybe not so appealing.
>
> But please consider that I am not closely following this work, so I do 
> apologize if I missed something.
>
> Best regards,
> Víctor
>
> [2] https://www.w3.org/TR/owl2-new-features/#F12:_Punning
>
> El 01/04/2020 a las 9:43, Harshvardhan J. Pandit escribió:
>> Hello.
>> Came across this paper [1] using DPV.
>> What is the opinion of the semantic web experts here on how instances 
>> should be represented? Directly as classes or as blank nodes?
>>
>> The paper presents an example of PersonalDataHandling instance as:
>>
>> ex:dataRequest a dpv:PersonalDataHandling ;
>>   dpv:hasDataSubject     ex:patient1 ;
>>   dpv:hasPurpose         [a dpv:AcacemicResearch] ;
>>   dpv:hasProcessing      [a dpv:Collect];
>>   dpv:hasLegalBasis      [a dpv:Consent];
>>   dpv:hasDataController  ex:hospital1;
>>   dpv:haRecipient        ex:physician3;
>>   dpv:hasPersonalDataCategory [a dpv:PhysicalHealth];
>>   dcterms:title          "Personal Data Collection for clinical study 
>> ..." .
>>
>> In providing examples, how should we advocate use of the vocabulary?
>> 1) blank nodes -> dpv:hasProcessing [a dpv:Collect];
>> I assume this arises is from the property's range value which is 
>> taken to require an instance of dpv:Processing, and therefore the 
>> creation of a blank node.
>> I do not think this is a good design pattern simply because it leaves 
>> blank nodes with no purpose other than to satisfy the range is an 
>> instance of a class semantics. I presume this is also not how people 
>> would think about processing - one is likely to go processing is 
>> "Collect".
>>
>> 2) specify classes -> dpv:hasProcessing dpv:Collect;
>> I like that this is much cleaner and what someone would actually want 
>> to indicate, but does not seem to satisfy range is an instance of 
>> dpv:hasProcessing condition (note: it doesn't violate it either).
>>
>> This question has also been raised to me at various points, 
>> especially by those who are not well versed in semantic web 
>> (including me!).
>> And in working on the Primer, it would be good to have this clarified 
>> in the examples.
>>
>> [1] Personal Data Privacy Semantics in Multi-Agent Systems Interactions
>> Davide Calvaresi, Michael Schumacher, and Jean-Paul Calbimonte
>> University of Applied Sciences and Arts Western Switzelrand (HES-SO)
>> https://www.researchgate.net/profile/Davide_Calvaresi/publication/340137395_Personal_Data_Privacy_Semantics_in_Multi-Agent_Systems_Interactions/links/5e7b3e3a4585152fc0ecbc2a/Personal-Data-Privacy-Semantics-in-Multi-Agent-Systems-Interactions.pdf 
>>
>>
>> Regards,
>
>


-- 
---
Harshvardhan Pandit
PhD Researcher
ADAPT Centre
Trinity College Dublin
Received on Thursday, 2 April 2020 12:47:03 UTC

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