I think the issue is simply a problem of terminology right now. Wikidata as it is does have no support for "Classes".
In the future, there will be Wikidata Queries. A Wikidata Query is similar to a class description in OWL. There is no need to create an item "Douglas Adams Novels". You can, though, have a Query "Douglas Adams Novels", and change its label, etc. Wikidata Queries will also have labels, an ID, etc. Does this make sense? On Thu Mar 06 2014 at 11:33:36 AM, Thomas Douillard < [email protected]> wrote: > Hi Lydia, in languages such as OWL, a class of item can be defined by a > predicate on the properties and values of the item. Will we be able to link > a class Qitem to a Wikidata complex query in the corresponding namespace ? > For example if we define a class "Douglas Adams Novels" whose instances are > the members of the example query you gave ? > > > > 2014-03-06 19:24 GMT+01:00 Lydia Pintscher <[email protected]>: > > On Tue, Mar 4, 2014 at 9:01 PM, David Cuenca <[email protected]> wrote: >> > I would like to make you aware of this RFC started by Gerard: >> > >> https://www.wikidata.org/wiki/Wikidata:Requests_for_comment/Define_lists_on_both_%22Wikimedia_lists%22_and_%22Wikimedia_categories%22 >> > >> > It is interesting because in the end, what is the difference between a >> list, >> > a category, and a query? Not much, really. >> > >> > I'm curious to know if the approach taken with queries will be the same >> as >> > the WDQ >> > http://tools.wmflabs.org/reasonator/?&q=6573995 >> > >> > Items like "List of..." or "Category:" would have some use, but the >> > development notes don't state if this is the intended path >> > https://meta.wikimedia.org/wiki/Wikidata/Development/Queries >> > >> > Any thoughts about it? >> >> I've been trying to understand the RfC 3 times now and still fail. So >> I can't answer your questions unfortunately. >> >> The short and simplified version of how complex queries will work: >> * someone defines a query on a page in a special query namespace (eg >> "everything that has author = Douglas Adams") >> * the result of the query is a list of items matching the query >> * the Wikipedias can include the result of the query and visualize it >> in certain ways on a page. (eg the wikitext of the article "List of >> works by Douglas Adams" would have a call to include the query result >> from Wikidata) >> >> >> Cheers >> Lydia >> >> -- >> 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 27/681/51985. >> >> _______________________________________________ >> Wikidata-l mailing list >> [email protected] >> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >> > _______________________________________________ > Wikidata-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata-l >
_______________________________________________ Wikidata-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-l
