The relationship between Wikipedia categories and Wikidata pops up here and there in discussions -- a recent one was https://www.wikidata.org/wiki/Wikidata:Project_chat/Archive/2013/06#Proposal_for_phase_4:_unify_and_centralize_categories.

I think Wikidata properties and queries will likely go a long way toward obsolescing Wikipedia categories.  Categories are essentially queries on a set of pre-defined properties. The manual maintenance that has been required to curate Wikipedia's category system seems like it could be largely eliminated (or, at least, centralized and streamlined) once Wikidata queries are deployed.  Wikidata properties like those covered in https://www.wikidata.org/wiki/Help:Basic_membership_properties also allow subjects to be arranged into a taxonomy of concepts, which is one of the main features of categories.

I'm not aware of any concrete plans to replace the category system with a solution from Wikidata, but I think it would make more sense to explore that option than to work on importing Wikipedia categories en masse into Wikidata. 


On Thu, Jul 18, 2013 at 6:18 PM, rupert THURNER <rupert.thurner@gmail.com> wrote:

Lets forward this to here, maybe somebody here already thought about categories in wikidata.

---------- Weitergeleitete Nachricht ----------
Von: "Tyler Romeo" <tylerromeo@gmail.com>
Datum: 18.07.2013 23:08
Betreff: Re: [Wikitech-l] Why isn't hotcat an extension?
An: "Wikimedia developers" <wikitech-l@lists.wikimedia.org>

On Thu, Jul 18, 2013 at 4:04 PM, Antoine Musso <hashar+wmf@free.fr> wrote:

> Lets move the categories in wikidata ? =)


That'd be nice, but how much time would that take to develop?

*-- *
*Tyler Romeo*
Stevens Institute of Technology, Class of 2016
Major in Computer Science
www.whizkidztech.com | tylerromeo@gmail.com
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