Hey everyone,
Wikidata’s birthday is still a few days away but since there are no
deployments on Sundays here is early birthday present number 2 ;-)
One of Wikidata’s most important but often under-appreciated areas is
the external identifiers. They link Wikidata with by now more than
2000 databases, knowledge bases, catalogs and more. External
identifiers allow people and machines access to more information about
a given topic and help identify the same concept in other databases.
The identifier can often be expanded to a full URI. (For example, LoC
ID n81114174 becomes
http://id.loc.gov/authorities/names/n81114174.)
This full URI can then be used in the linked open data web to match
our data with other datasets and use both of them together easily.
From today on, Wikidata has full URIs for statements
that represent
external identifiers in its RDF exports, and thereby becomes a
proper
citizen of the linked open data web. To make this work the property
for the external ID needs to have a statement with property “URI used
in RDF” (
https://www.wikidata.org/wiki/Property:P1921). I’m looking
forward to seeing what new things are going to be built with this and
how we will show up on
http://lod-cloud.net.
Cheers
Lydia
PS: It will take a reload of the query service to also have the full
URIs included there for all items. This should happen in the first two
weeks of November. (Tracking is in
https://phabricator.wikimedia.org/T176593) Until then only newly added
or edited items will have the full URIs added to the query service.
--
Lydia Pintscher -
http://about.me/lydia.pintscher
Product Manager for Wikidata
Wikimedia Deutschland e.V.
Tempelhofer Ufer 23-24
10963 Berlin
www.wikimedia.de
Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.
Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg
unter der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das
Finanzamt für Körperschaften I Berlin, Steuernummer 27/029/42207.