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 <[email protected]> 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 <[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: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
>>> [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
>
>
_______________________________________________
Wikidata-l mailing list
[email protected]
https://lists.wikimedia.org/mailman/listinfo/wikidata-l
