Hoi,
I cannot parse this ..
Thanks,
GerardM
On 19 August 2014 11:43, Thomas Douillard <thomas.douill...@gmail.com>
wrote:
> Note that in Wikidata we are developping methods and tools to class items
> in « classes », which in short are sets of real world things or events. In
> languages like the w3c language and standards OWL2
> <https://en.wikipedia.org/wiki/OWL2>. In this language you can assign a
> class to an element (a media in the common case) to a class (that can be
> seen as a better defined category) either by creating a statement « this
> media belongs to that category » (in Wikidata this is done by using the «
> instance of » property <https://www.wikidata.org/wiki/Property:P31>) or
> by associating a so called «class expression» in OWL (an analog of a query
> but more powerful) Then in OWL any item who satisfy the criteria of the
> query or class expression associated to a class belongs to that class
> without stating it explicitely. In short, the possibility to assign an
> arbitrary class to an item when a query is not enough will also be possible
> with just a metadata repository, we may in the future even be able to mix
> these two ways to class medias.
>
>
> 2014-08-19 10:14 GMT+02:00 James Heald <j.he...@ucl.ac.uk>:
>
> Also there might be queries one might want to run on the categories, which
>> would be another reason to include them in Commons Wikibase.
>>
>> -- J.
>>
>>
>>
>> On 19/08/2014 07:00, Gerard Meijssen wrote:
>>
>>> Hoi,
>>> I know the categories in Commons exist. I also know that you do not have
>>> to
>>> add categories when an image is uploaded. Many people do not consider the
>>> categories because they are just there and are not easy nor obvious
>>> without
>>> a long study.
>>>
>>> They are there and they evolve. When the "community" finds that they are
>>> no
>>> longer useful, there will be others who still want to work on it. They
>>> can,
>>> it is a harmless occupation. Why would we consider removing category
>>> structures as long as someone cares about them ??
>>> Thanks,
>>> GerardM
>>>
>>>
>>
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