Hello Thad!
What is your use case for linking Wikidata items to schema.org properties?
It seems to me that the most important use cases of a mapping between schema.org and Wikidata would be 1) to export Wikidata content using schema.org vocabulary 2) import structured data that uses schema.org into Wikidata 3) allow schema.org publishers to use Wikidata properties to enhance their published data.
I don't see in this 3 use cases one in which considering schema.org property IRIs like http://schema.org/birthPlace as also more or less ids for regular individuals and mapping them to Wikidata items is actually useful.
So, I would stick with using schema.org properties IRIs as usual RDF property IRIs and use them in Wikidata as such. But, if you have a strong use case use 'exact match' (or something a bit weaker) is probably the way to go. P2236 (sous-propriété externe) have been intended to be more or less similar to rdfs:subPropertyOf.
Cheers,
Thomas
PS: The canonical IRIs for Wikidata entities are http://www.wikidata.org/entity/QXXX and not http://www.wikidata.org/wiki/QXXX
Le 18 juin 2016 à 07:33, Benjamin Good ben.mcgee.good@gmail.com a écrit :
Perhaps the new 'exact match'? https://m.wikidata.org/wiki/Property:P2888
On Jun 17, 2016, at 8:26 PM, Thad Guidry thadguidry@gmail.com wrote:
Oh boy. I thought I had a few things figured out with Wikidata...until I read through the Property Talk discussions for
https://www.wikidata.org/wiki/Property_talk:P2236
(with its mentions of Freebase mapping)
So... I've been adding a few bits of Schema.org mapping into Wikidata today, and stumbled upon a few things that made me rethink a few things...lolol.
QUESTION: How to state that a Wikidata Entity (not a Property) such as place of birth https://www.wikidata.org/wiki/Q1322263 is the same concept or idea as a Schema.org property http://schema.org/birthPlace ?
I thought I could use P2236 above... but then it seems its for WD Properties, not Entities (subjects) ?
SOLUTION ? Perhaps we could do a best practice of treating http://schema.org/birthPlace as an actual Identifier for the place of birth concept https://www.wikidata.org/wiki/Q1322263
...while reserving the WD Property place of brith https://www.wikidata.org/wiki/Property:P19 to use equivalent property https://www.wikidata.org/wiki/Property:P1628 ?
TPT and Denny didn't leave enough notes in there for what to do about external mapping cases of external vocabularies that are also loosely considered as metadata dictionaries as well for the common web and developers, like Schema.org is.
Thoughts on the SOLUTION proposed ?
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