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Re: Question: Authoritative URIs for Geo locations? Multi-lingual labels?

From: Bernard Vatant <bernard.vatant@mondeca.com>
Date: Thu, 8 Sep 2011 18:14:00 +0200
Message-ID: <CAK4ZFVGF_4QGkGJAkkOOW0jGGNipm+F5tSW-N8ty7bXEHAPRqQ@mail.gmail.com>
To: Sarven Capadisli <info@csarven.ca>
Cc: "M. Scott Marshall" <mscottmarshall@gmail.com>, "public-lod@w3.org community" <public-lod@w3.org>
Hi all

2011/9/8 Sarven Capadisli <info@csarven.ca>

> Here is a nice:
>
> <http://dbpedia.org/resource/Montreal> owl:sameAs
> <http://sws.geonames.org/6077244/> .
>

A nice abuse of owl:sameAs indeed :)
http://sws.geonames.org/6077244/ is Montréal *Post Office* since its feature
code is S.PO, called simply "Montréal" by laziness of the data curator ...
and mistaken as the city by some dumb script not leveraging geonames
classification to sort out homonyms.


> http://sws.geonames.org/6077244/ doesn't provide more labels however.
>

Indeed. No one has taken the time so far to name Montréal Post Office in
other languages.
But http://sws.geonames.org/6077243/ which is indeed the *City* of Montréal,
does provide suite a bunch of them.

So data curation is needed :
- Specify the name(s) of http://sws.geonames.org/6077244/ on geonames side
to ease disambiguation (will do it)
- Correct the DBpedia dumb matching (I have no power on that one)

Cheers

Bernard


>
> -Sarven
>
> On Thu, 2011-09-08 at 15:49 +0100, Paul Wilton wrote:
> > Hi Scott
> > http://www.geonames.org is a good source of global Geospatial RDF
> > linked data - it is a very large global dataset
> >
> >
> > For the UK:  http://data.ordnancesurvey.co.uk  is a good option
> >
> >
> > freebase also has a large global geospatial dataset
> >
> >
> >
> > cheers
> > Paul
> >
> >
> >
> > On Thu, Sep 8, 2011 at 3:38 PM, M. Scott Marshall
> > <mscottmarshall@gmail.com> wrote:
> >         It seems that dbpedia is a de facto source of URIs for
> >         geographical
> >         place names. I would expect to find a more specialized source.
> >         I think
> >         that I saw one mentioned here in the last few months. Are
> >         there
> >         alternatives that are possible more fine-grained or designed
> >         specifically for geo data? With multi-lingual labels? Perhaps
> >         somebody
> >         has kept track of the options on a website?
> >
> >         -Scott
> >
> >         --
> >         M. Scott Marshall
> >         http://staff.science.uva.nl/~marshall
> >
> >         On Thu, Sep 8, 2011 at 3:07 PM, Sarven Capadisli
> >         <info@csarven.ca> wrote:
> >         > On Thu, 2011-09-08 at 14:01 +0100, Sarven Capadisli wrote:
> >         >> On Thu, 2011-09-08 at 14:07 +0200, Karl Dubost wrote:
> >         >> > # Using RDFa (not implemented in browsers)
> >         >> >
> >         >> >
> >         >> > <ul xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#"
> >         id="places-rdfa">
> >         >> >     <li><span
> >         >> >         about="http://www.dbpedia.org/resource/Montreal"
> >         >> >         geo:lat_long="45.5,-73.666667">Montréal</span>,
> >         Canada</li>
> >         >> >     <li><span
> >         >> >         about="http://www.dbpedia.org/resource/Paris"
> >         >> >         geo:lat_long="48.856578,2.351828">Paris</span>,
> >         France</li>
> >         >> > </ul>
> >         >> >
> >         >> > * Issue: Latitude and Longitude not separated
> >         >> >   (have to parse them with regex in JS)
> >         >> > * Issue: xmlns with <!doctype html>
> >         >> >
> >         >> >
> >         >> > # Question
> >         >> >
> >         >> > On RDFa vocabulary, I would really like a solution with
> >         geo:lat and geo:long, Ideas?
> >         >>
> >         >> Am I overlooking something obvious here? There is lat, long
> >         properties
> >         >> in wgs84 vocab. So,
> >         >>
> >         >> <span about="http://dbpedia.org/resource/Montreal">
> >         >>     <span property="geo:lat"
> >         >>           content="45.5"
> >         >>           datatype="xsd:float"></span>
> >         >>     <span property="geo:lat"
> >         >>           content="-73.666667"
> >         >>           datatype="xsd:float"></span>
> >         >>     Montreal
> >         >> </span>
> >         >>
> >         >> Tabbed for readability. You might need to get rid of
> >         whitespace.
> >         >>
> >         >> -Sarven
> >         >
> >         > Better yet:
> >         >
> >         > <li about="http://dbpedia.org/resource/Montreal">
> >         >    <span property="geo:lat"
> >         > ...
> >         >
> >         >
> >         > -Sarven
> >
> >
> >
>
>
>
>
>


-- 
*Bernard Vatant
*
Vocabularies & Data Engineering
Tel :  + 33 (0)9 71 48 84 59
Skype : bernard.vatant

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Received on Thursday, 8 September 2011 16:14:51 UTC

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