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 lydia.pintscher@wikimedia.de:
On Tue, Mar 4, 2014 at 9:01 PM, David Cuenca dacuetu@gmail.com 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_...
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
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