On 22 Jun 2012, at 17:20, Denny Vrandečić <denny.vrandecic(a)wikimedia.de> wrote:
Here's the use case:
Every statement in Wikidata will have a URI. Every statement can have
one more references.
In many cases, the reference might be text on a website.
As an aside, a growing number of such pages may come with some basic machine-readable
data. For example IMDB actor pages may expose basic background facts, or e-govt sites may
publish data geo/demographic/etc data.
I hope
schema.org (augmented with Wikidata-derrived vocab) will help encourage this.
I'm not sure Wikidata's provenance machinery needs to worry about such things,
although the lurking problem of cycles in the provenance/source graph may eventually be an
issue here. For example, if some BBC music site is built from -say- MusicBrainz +
Wikipedia data, should their embedded rdfa expose this sourcing so that someone citing it
in support of a Wikidata factoid can be made aware of the circularity?
Dan