Hi, Gerard, I don't understand, As needed for what ? In your example it is enough to retrieve all the territorial entities a location is in.
But let's say I want to get the administrative territorial organisation of France (Wikipedias probably ), I mean like "france is divided in regions, regions are divided in departments, and so on), for example, do we have enough in your model ? I propose to add to the classes like <French Region> for example an "instance of" claim that states <French Region> instance of <French administrative division type> to reflect that in Wikidata. Then if I want to know how france is administratively divided, I query all the instances in that class. This is a complement to <Pays de la Loire> instance of <French region> for example. 2014-06-11 10:37 GMT+02:00 Gerard Meijssen <gerard.meijs...@gmail.com>: > Hoi, > Important to recognise is that there can be as many layers as are needed.. > ie a roller coaster can be in a park, a park can be in a settlement, a > settlement in a municipality, a municipality in a county, a county in a > province, a province in a state and finally a state in a country (that is > on a continent)... > > This is how it effectively is already in Wikidata for many "locations" > Thanks, > Gerard > > > On 11 June 2014 09:48, Thomas Douillard <thomas.douill...@gmail.com> > wrote: > >> 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 <mar...@semantic-mediawiki.org >> >: >> >> 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" <mar...@semantic-mediawiki.org >>>> <mailto:mar...@semantic-mediawiki.org>> 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 >>>> <jeroended...@gmail.com <mailto:jeroended...@gmail.com> >>>> <mailto:jeroended...@gmail.com >>>> >>>> <mailto:jeroended...@gmail.com>__>> 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 >>>> Wikidata-l@lists.wikimedia.org >>>> <mailto:Wikidata-l@lists.wikimedia.org> >>>> <mailto:Wikidata-l@lists.__wikimedia.org >>>> <mailto:Wikidata-l@lists.wikimedia.org>> >>>> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >>>> <https://lists.wikimedia.org/mailman/listinfo/wikidata-l> >>>> >>>> >>>> >>>> >>>> _________________________________________________ >>>> >>>> Wikidata-l mailing list >>>> Wikidata-l@lists.wikimedia.org >>>> <mailto:Wikidata-l@lists.wikimedia.org> >>>> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >>>> <https://lists.wikimedia.org/mailman/listinfo/wikidata-l> >>>> >>>> >>>> >>>> _________________________________________________ >>>> >>>> Wikidata-l mailing list >>>> Wikidata-l@lists.wikimedia.org <mailto:Wikidata-l@lists. >>>> wikimedia.org> >>>> https://lists.wikimedia.org/__mailman/listinfo/wikidata-l >>>> >>>> <https://lists.wikimedia.org/mailman/listinfo/wikidata-l> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Wikidata-l mailing list >>>> Wikidata-l@lists.wikimedia.org >>>> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >>>> >>>> >>> >>> _______________________________________________ >>> Wikidata-l mailing list >>> Wikidata-l@lists.wikimedia.org >>> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >>> >> >> >> _______________________________________________ >> Wikidata-l mailing list >> Wikidata-l@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >> >> > > _______________________________________________ > Wikidata-l mailing list > Wikidata-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata-l > >
_______________________________________________ Wikidata-l mailing list Wikidata-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-l
