Can you be more specific ?
2014-08-19 12:20 GMT+02:00 Gerard Meijssen <[email protected]>: > Hoi, > I cannot parse this .. > Thanks, > GerardM > > > On 19 August 2014 11:43, Thomas Douillard <[email protected]> > 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 <[email protected]>: >> >> 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 >>>> >>>> >>> >>> _______________________________________________ >>> 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 > >
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