[Wikimedia-l] All the lakes in Sweden

Anders Wennersten mail at anderswennersten.se
Fri May 17 16:58:08 UTC 2013

Sorry not, and what we have learned is how hard is to to define what a 
lake is

In Swden some mention there are 200 000 lakes, and that the Hydrology 
authority has data of over 150 000  but where less then 75 000 has a 
name and many with just rudimentary data. The lakes with environment 
impact data are 7 233 and in this project data with 100 dataitems per 
lake are collected from three authorities,  and articles are generated 
into sv:wp for 57 648 (not 30 000) lakes. Only around a few percent of 
these are without name and the most common name is used by 645 unique 
lakes... (just to take care of the forkpages is a science in its own)


Emilio J. Rodríguez-Posada skrev 2013-05-17 18:06:
> Very cool project. Do you know how many lakes are there in other European
> countries (or website/datasets)?
> It is for this
> http://en.wikipedia.org/wiki/User:Emijrp/All_human_knowledge#Lakes
> 2013/5/16 Anders Wennersten <mail at anderswennersten.se>
>> A new major botgenerating effort is now under way on sv:wp. All lakes
>> (30000, all down to ones of pondsizes with no name) is now produced based
>> on lake data from Swedish metereology institute and all lake environment
>> data from a newly set up authority demanded by EU, in order to register and
>> track all data of lakes in all Europe.
>> The articles are generated by AWB and with some manual effort to take care
>> of text in existing articles and a major effort taking care of all with the
>> same name (Little lake, Black lake etc)
>> Examples
>> http://sv.wikipedia.org/wiki/%**C3%96ren,_Sm%C3%A5land<http://sv.wikipedia.org/wiki/%C3%96ren,_Sm%C3%A5land>
>> http://sv.wikipedia.org/wiki/**Bunn <http://sv.wikipedia.org/wiki/Bunn>
>> Also on maps from Google or Bing you can localize all lakes if you do not
>> know the name (and for the ones missing name)
>> https://maps.google.com/maps?**q=http://toolserver.org/~para/**
>> cgi-bin/kmlexport%3Fproject%**3Dsv%26article%3DKategori%**
>> 253AInsj%2525C3%2525B6ar_i_J%**2525C3%2525B6nk%2525C3%**2525B6pings_kommun<https://maps.google.com/maps?q=http://toolserver.org/~para/cgi-bin/kmlexport%3Fproject%3Dsv%26article%3DKategori%253AInsj%2525C3%2525B6ar_i_J%2525C3%2525B6nk%2525C3%2525B6pings_kommun>
>> or
>> http://www.bing.com/maps/?**mapurl=http%3A%2F%**
>> 2Ftoolserver.org%2F%7Epara%**2Fcgi-bin%2Fkmlexport%**
>> 3Fproject%3Dsv%26article%**3DKategori%253AInsj%2525C3%**
>> 2525B6ar_i_J%2525C3%2525B6nk%**2525C3%2525B6pings_kommun<http://www.bing.com/maps/?mapurl=http%3A%2F%2Ftoolserver.org%2F%7Epara%2Fcgi-bin%2Fkmlexport%3Fproject%3Dsv%26article%3DKategori%253AInsj%2525C3%2525B6ar_i_J%2525C3%2525B6nk%2525C3%2525B6pings_kommun>
>> As you can see the text is substantial around 5000 characters and even
>> thing like fisharts in the lakes are generated from databases.
>> We are now starting to contemplate to put these type of basedata in
>> Wikidata (we are experimenting with this for some adm units), and to
>> generate the articles from that as a base instead of from database
>> extracted from the authorities and put on personal PCs
>> We have excellent relations with involved authorities that are really
>> happy with the result, and we are now being approached by other authorites
>> who wants to follow and get their data from theirs databases used to
>> generate qualified Wp articles (like all runestones, all archaeological
>> excavations sites, all artworks placed on official grounds etc)
>> Are there any other effort like this going on, especially if any one come
>> further in establish links from authorities databased to wikidata?
>> Anders
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