[Tagging] part_of:wikidata key

Andy Mabbett andy at pigsonthewing.org.uk
Tue Nov 28 15:19:23 UTC 2017


On 28 November 2017 at 15:08, Kevin Kenny <kevin.b.kenny+osm at gmail.com> wrote:

> I just got an idea that is either insigntful or stupid, and I'm not sure which.

The former

> But then it occurred to me: our idea of 'Wikidata reference Q314159265'
> is 'the set of objeccts tagged with wikidata=Q314159265'. That set
> doesn't exist as a first-class object, but isn't that what Overpass is
> for?  Would it work to have links into OSM from Wikidata resolved
> as Overpass queries, rather than tied to single OSM objects?

Wikidata also uses SPARQL queries, an the linking between two such
sets is done by federating queries; a service which Wikidata offers
(and which makes use of shared identifiers; another reason to use
Wikidata IDs in OSM):

   https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/Federated_queries

Specific OSM-based services which Wikidata federates with include:

   https://www.wikidata.org/wiki/Wikidata:SPARQL_federation_input/Archive#Linked_Geo_Data

   https://www.wikidata.org/wiki/Wikidata:SPARQL_federation_input/Archive#LOSM

-- 
Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk



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