Hi, I basically proposed a two layers model in extended discussions : Administrative units | Administrative unit type | Administrative unit classes by country City Of London | City of the UK | Type of administrative unit of the UK Lorraine | French Region | Type of administrative unit of France
Where going one step left in the table reads ''instance of''. This seem close to your ''helper item'' model. 2014-06-10 13:44 GMT+02:00 Markus Krötzsch <[email protected]>: > On 10/06/14 11:11, Luca Martinelli wrote: > >> We may possibly use an ad hoc item "City of United Kingdom", subclass of >> "city" and "UK administrative division", may we? >> > > Sure, that's possible. Maybe this is even necessary. I had suggested to > link to "city status in the UK" -- but there is no item "town status in the > UK" so one would need to have helper items there as well. If we need new > items in either case, the class-based modelling seems nicer since it fits > into the existing class hierarchy as you suggest. > > Markus > > > > >> L. >> >> Il 10/giu/2014 10:21 "Markus Krötzsch" <[email protected] >> <mailto:[email protected]>> ha scritto: >> >> >> On 07/06/14 00:40, Joe Filceolaire wrote: >> >> Well they can ask..... >> >> As there is no real definition of what is a city and what the >> limits of >> each city are I'm not sure they will get a useful answer. The >> population >> of the "City of London" (Q23311), for instance, is only 7,375! >> Should we >> change it from 'instance of:city' to 'instance of:village'? >> >> >> Side remark: in the UK, "city" and "town" are special legal statuses >> of settlements. This terminology is what "City of London" refers to. >> There is a clear and crisp definition for what this means, but it is >> not what we mean by our class "city" in Wikidata. In particular, >> this has no direct relationship to size: the largest UK "towns" have >> over 100k inhabitants. >> >> The class "city" is used for "relatively large and permanent human >> settlement[s]" [1], which does not say much (because the vagueness >> of "relatively"). Maybe we should even wonder if "city" is a good >> class to use in Wikidata. Saying that something has been awarded >> city status in the UK (Q1867820) has a clear meaning. Saying that >> something is a "human settlement" is also rather clear. But drawing >> the line between "village", "city" and "town" is quite tricky, and >> will probably never be done uniformly across the data. >> >> Conclusion: if you are looking for, say, human settlements with more >> than 100k inhabitants, then you should be searching for just that >> (which I think is basically what you also are saying below :-). >> >> Markus >> >> [1] https://en.wikipedia.org/wiki/__City >> >> <https://en.wikipedia.org/wiki/City> >> >> >> >> Even a basic query like 'people born in the Czech republic' has >> problems. Should it include people born in Czechoslovakia or the >> Austro-Hungarian provinces of Bohemia and Moravia? To exclude >> these the >> query needs to check not just if the 'place of birth' of an item >> is 'in >> the administrative entity:Czech Republic' today but whether that >> was >> true on the 'date of birth' of each of those people. >> >> This isn't to say that such queries are not useful. Just to >> point out >> that real world data is tricky. The cool thing is that we are >> going to >> have the data in Wikidata to make it theoretically feasible to >> drill >> down and get answers to these tricky questions. Once the data is >> there, >> open licensed for anyone to use, then it is just a matter of a >> letting >> loose a thousand PhDs to devise clever ways to query it. >> >> If we build it they will come! >> >> At least that is my understanding. >> >> Joe >> >> >> On Fri, Jun 6, 2014 at 9:21 PM, Jeroen De Dauw >> <[email protected] <mailto:[email protected]> >> <mailto:[email protected] >> >> <mailto:[email protected]>__>> wrote: >> >> Hey Yury, >> >> We are indeed planning to use the Ask query language for >> Wikidata. >> >> People will be able to define queries on dedicated query >> pages that >> contain a query entity. These query entities will represent >> things >> such as "The cities with highest population in Europe". >> People will >> then be able to access the result for those queries via the >> web API >> and be able to embed different views on them into wiki >> pages. These >> views will be much like SMW result formats, and we might >> indeed be >> able to share code between the two projects for that. >> >> This functionality is still some way off though. We still >> need to do >> a lot of work, such as creating a nice visual query builder. >> To >> already get something out to the users, we plan to enable >> more >> simple queries via the web API in the near future. >> >> Cheers >> >> -- >> Jeroen De Dauw - http://www.bn2vs.com >> Software craftsmanship advocate >> Evil software architect at Wikimedia Germany >> ~=[,,_,,]:3 >> >> _________________________________________________ >> >> Wikidata-l mailing list >> [email protected] >> <mailto:[email protected]> >> <mailto:Wikidata-l@lists.__wikimedia.org >> <mailto:[email protected]>> >> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >> <https://lists.wikimedia.org/mailman/listinfo/wikidata-l> >> >> >> >> >> _________________________________________________ >> >> Wikidata-l mailing list >> [email protected] >> <mailto:[email protected]> >> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >> <https://lists.wikimedia.org/mailman/listinfo/wikidata-l> >> >> >> >> _________________________________________________ >> >> Wikidata-l mailing list >> [email protected] <mailto:[email protected] >> > >> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >> >> <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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