Hoi, What the RFC is about is actually quite simple. It states that the content of most of the lists and categories can be expressed as queries. So when an item is an instance of "Wikimedia list article" or "Wikimedia category page" it can be complemented by an "is a list of" property. For examples, [1] and [2]
The confusion is about something that turned up as a result; Wikipedia has lists where they expect Wikidata to treat them NOT as a list. Take for instance the info about "Wikimedia Deutschland" [3]. It is an "instance of" "list of Wikimedia chapters". This is patent nonsense. Obviously it is a "Wikimedia chapter".
The discussion is about should we maintain that is a "list" in Wikipedia as a list and consequently apply the property "is a Wikimedia list article" or should we make it an instance of whatever is applicable. In this case the German chapter is an instance of "Wikimedia chapter". All that it takes is having appropriate statements that reflect the function of the item.
As far as I am concerned, we only need both the subclass and the list when at least one Wikipedia has both. Where the other "lists" should live? Probably on the lowest level ie not on the list.
NB I do not consider what Wikidata will bring in query functionality. It does not exist so I consider what can be done now with WDQ. It escapes me why we need a special namespace for queries.I am however eager to learn more. Thanks, GerardM
[1] http://tools.wmflabs.org/reasonator/?&q=Q8860958 [2] http://tools.wmflabs.org/reasonator/?&q=967762 [3] https://www.wikidata.org/wiki/Q8288 or with Reasonator .. http://tools.wmflabs.org/reasonator/?&q=8288https://www.wikidata.org/wiki/Q8288
On 6 March 2014 19:24, Lydia Pintscher lydia.pintscher@wikimedia.de wrote:
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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