Re: Wikidata export in RDF

FWIW, the WG is also working on a DC to PROV mapping note [1]. This is 
still a working draft. We would appreciate any further feedback from the 
DC community before we publish it.

[1] https://dvcs.w3.org/hg/prov/raw-file/ff940ee82d3d/dc-note/Overview.html

Cheers,

Jun

On 08/08/2012 15:33, Antoine Zimmermann wrote:
> DC does not intend to be compatible with OWL DL and its properties are
> made to be flexible enough to be used with literals or URIs. However, I
> like to consider DC properties as AnnotationProperties, and it seems
> they are used as such by many people. Even in the OWL specifications, DC
> properties are shown as typical examples of AnnotationProperties.
> Protégé 4 includes declaration of AnnotationProperties for some DC terms
> by default. There are even two modified DC ontologies available where
> all properties are declared as AnnotationProperties [1,2], which can be
> used to "safely" import all the DC terms into a strictly OWL DL
> ontology. These modified ontologies are compatible with OWL (1/2) DL.
>
> Nevertheless, in this particular case, I'd say it makes sense to use an
> ObjectProperty instead, as it is core to the knowledge model of WikiData
> and a source is always identified by a URI. AnnotationProperties should
> be left for the things that are auxiliary to the domain being modelled.
>
>
> [1] DC terms in OWL DL.
> http://protege.stanford.edu/plugins/owl/dc/terms.owl
> [2] DC terms in OWL 2 DL. http://purl.org/NET/dc_owl2dl/terms
>
>
> Best,
> AZ
>
> Le 08/08/2012 15:55, Markus Krötzsch a écrit :
>> On 08/08/12 14:28, Bob Ferris wrote:
>>> Hi all,
>>>
>>> btw how about dct:source [1] or dct:publisher [2] as source (is derived
>>> from) property?
>>
>> Correct me if I am wrong, but I think prov has better OWL compatibility
>> by declaring the type of its property (object vs. data). DC says that
>> its properties are "intended to be used with non-literal values" but I
>> am not sure if this is supposed to be a declaration as an object
>> property or not.
>>
>> Cheers,
>>
>> Markus
>>
>>>
>>> Cheers,
>>>
>>>
>>> Bo
>>>
>>>
>>> [1] http://purl.org/dc/terms/source
>>> [2] http://purl.org/dc/terms/publisher
>>>
>>> On 08/08/2012 02:33 PM, Denny Vrandečić wrote:
>>>> Hi Jun,
>>>>
>>>> almost perfect! prov:hadPrimarySource is a tiny bit too strong (it
>>>> requires that source is from first-hand direct experience etc.),
>>>> whereas its superproperty prov:wasDerivedFrom is a bit too weak, but
>>>> can be used here.
>>>>
>>>> So if there was a prov:hadSource between these two, I would gladly use
>>>> it, not having the strong requirements for the source.
>>>> Otherwise I will settle for prov:wasDerivedFrom for now.
>>>>
>>>> Thank you again, that helped a lot!
>>>>
>>>> Cheers,
>>>> Denny
>>>>
>>>>
>>>> 2012/8/8 Jun Zhao <jun.zhao@zoo.ox.ac.uk>:
>>>>> Hi Denny,
>>>>>
>>>>>
>>>>> On 08/08/2012 13:05, Denny Vrandečić wrote:
>>>>>>
>>>>>> Every statement has an IRI. And the source will also have an IRI
>>>>>> describing it (i.e. an IRI for the statistical yearbook, an IRI for
>>>>>> the mentioned paper).
>>>>>
>>>>>
>>>>> By this, do you really specially asking for a property to express
>>>>> that a
>>>>> statement about an entity is derived from a certain primary source?
>>>>>
>>>>> How about the http://www.w3.org/TR/prov-o/#hadPrimarySource?
>>>>>
>>>>> Note that there are some renaming going on around this property. If
>>>>> you want
>>>>> to use more than the above property, such as prov:source or
>>>>> prov:qualifiedSource, then please ping us before you do so.
>>>>>
>>>>> HTH,
>>>>>
>>>>> Jun
>>>>>
>>>>>
>>>>>>
>>>>>> What I did not figure out is: which property from the provenance
>>>>>> ontology can I use to connect the statement IRI to the source IRI?
>>>>>
>>>>>
>>>>> --
>>>>> Jun Zhao, PhD
>>>>> EPSRC Postdoctoral Fellow
>>>>> Department of Zoology
>>>>> University of Oxford
>>>>> Tinbergen Building, South Parks Road
>>>>> Oxford, OX1 3PS, UK
>>>
>>>
>>
>>
>

-- 
Jun Zhao, PhD
EPSRC Postdoctoral Fellow
Department of Zoology
University of Oxford
Tinbergen Building, South Parks Road
Oxford, OX1 3PS, UK

Received on Thursday, 9 August 2012 08:39:41 UTC