W3C home > Mailing lists > Public > public-lod@w3.org > August 2008

RE: Linked Movie DataBase

From: Georgi Kobilarov <gkob@gmx.de>
Date: Fri, 1 Aug 2008 14:42:24 +0200
Message-ID: <180C011CD4FF654AB4B73A9A5AD7472C052E97@aristoteles.zuhause.lan>
To: "Hausenblas, Michael" <michael.hausenblas@joanneum.at>
Cc: "Mariano Consens" <consens@cs.toronto.edu>, "Chris Bizer" <chris@bizer.de>, "Oktie Hassanzadeh" <oktie@cs.toronto.edu>, <public-lod@w3.org>

Hi Michael,

 
> >e.g. http://dbpedia.org/resource/Madonna_(entertainer) is not a valid
> DBpedia resource URI. the correct one is
> http://dbpedia.org/resource/Madonna_%28entertainer%29
> 
> Hm. Could you clearify this please?

Try describe queries on those two URIs at dbpedia.org/sparql.
the url_encoded URI is the correct one, containing all the data about
Madonna.
DBpedia *always* uses url_encoded URIs for resources!


http://dbpedia.org/page/Madonna_(entertainer) is a bridge to 
DESCRIBE http://dbpedia.org/resource/Madonna_(entertainer)

The only result for that query is a sameAs link to Yago, which has been
contributed externally and was not created by the DBpedia team. And it's
wrong.
But since the triple dbpedia:Madonna_(entertainer) owl:sameas
yago:Madonna_(entertainer) is available in the graph store, users might
get the impression that it's a valid URI.


> 
> curl -I http://dbpedia.org/page/Madonna_(entertainer)
> HTTP/1.1 200 OK
> Server: Virtuoso/05.00.3032 (Solaris) x86_64-sun-solaris2.10-64  VDB
> Connection: Keep-Alive
> Content-Type: text/html; charset=UTF-8
> Date: Fri, 01 Aug 2008 11:40:26 GMT
> Accept-Ranges: bytes
> Expires: Sat, 02 Aug 2008 11:40:26 GMT
> Content-Length: 4457


However, our Linked Data bridge (formerly Pubby, now Virtuoso's own
implementation) returns a http 200 on every URI, even if there's no data
available, e.g. on
http://dbpedia.org/resource/Hey_I'm_not_a_valid_DBpedia_URI. 
Maybe we should change that...

Best,
Georgi

--
Georgi Kobilarov
Freie Universitšt Berlin
www.georgikobilarov.com


> 
> Cheers,
> 	Michael
> 
> ----------------------------------------------------------
>  Michael Hausenblas, MSc.
>  Institute of Information Systems & Information Management
>  JOANNEUM RESEARCH Forschungsgesellschaft mbH
> 
>  http://www.joanneum.at/iis/
> ----------------------------------------------------------
> 
> 
> >-----Original Message-----
> >From: public-lod-request@w3.org
> >[mailto:public-lod-request@w3.org] On Behalf Of Georgi Kobilarov
> >Sent: Friday, August 01, 2008 1:33 PM
> >To: Chris Bizer; Oktie Hassanzadeh; public-lod@w3.org
> >Cc: Mariano Consens
> >Subject: RE: Linked Movie DataBase
> >
> >
> >Really great work guys!
> >
> >> As Yves and Juan, I'm also very interested to hear more about
> >> ODDLinker.
> >
> >me too!
> >
> >> Would it be possible that you send us a file with the
> >owl:sameAs links
> >> between  LinkedMDB and DBpedia?
> >
> >just had a quick look at your DBpedia links. You need to url_encode
> >them.
> >
> >e.g. http://dbpedia.org/resource/Madonna_(entertainer) is not a valid
> >DBpedia resource URI.
> >the correct one is
> >http://dbpedia.org/resource/Madonna_%28entertainer%29
> >
> >
> >Best,
> >Georgi
> >
> >--
> >Georgi Kobilarov
> >Freie Universitšt Berlin
> >www.georgikobilarov.com
> >
> >
> >> -----Original Message-----
> >> From: public-lod-request@w3.org [mailto:public-lod-request@w3.org]
On
> >> Behalf Of Chris Bizer
> >> Sent: Friday, August 01, 2008 11:51 AM
> >> To: Oktie Hassanzadeh; public-lod@w3.org
> >> Cc: Mariano Consens
> >> Subject: Re: Linked Movie DataBase
> >>
> >>
> >> Hi Oktie and Mariano,
> >>
> >> realy nice work and clearly what Tim Berners-Lee would call
"Semantic
> >> Web done right" :-)
> >>
> >> We would love to set links from DBpedia into LinkedMDB.
> >>
> >> Would it be possible that you send us a file with the
> >owl:sameAs links
> >> between  LinkedMDB and DBpedia?
> >>
> >> As Yves and Juan, I'm also very interested to hear more about
> >> ODDLinker.
> >>
> >> Cheers
> >>
> >> Chris
> >>
> >>
> >> --
> >> Prof. Dr. Chris Bizer
> >> Freie Universitšt Berlin
> >> Phone: +49 30 838 55509
> >> Mail: chris@bizer.de
> >> Web: www.bizer.de
> >>
> >> ----- Original Message -----
> >> From: "Oktie Hassanzadeh" <oktie@cs.toronto.edu>
> >> To: <public-lod@w3.org>
> >> Cc: "Mariano Consens" <consens@cs.toronto.edu>
> >> Sent: Thursday, July 31, 2008 6:58 PM
> >> Subject: Linked Movie DataBase
> >>
> >>
> >> >
> >> > Greetings everyone!
> >> >
> >> > We are pleased to announce the release of the preview
> >version of the
> >> > "Linked Movie DataBase" (LinkedMDB): http://www.linkedmdb.org
> >> >
> >> > LinkedMDB aims at publishing the first open linked data
> >dedicated to
> >> > movies. It currently contains over three million RDF triples with
> >> > hundreds of thousands of RDF links to other LOD project
> >data sources
> >> > and movie-related websites. Please check the LinkedMDB
> >website for a
> >> > description of the data source, a brief overview of the
> >interlinking
> >> > methodology used, and detailed statistics.
> >> >
> >> > We welcome any kind of feedback and comment from the LOD
community,
> >> > either off-list or on the list (if of interest to everyone).
> >> >
> >> > And, if you liked this project, please don't forget to follow
this
> >> > link and vote for us!:
> >> > http://triplify.org/Challenge/Nominations
> >> >
> >> > Cheers,
> >> > Oktie Hassanzadeh and Mariano Consens
> >> > admin@linkedmdb.org
> >> >
> >> > PS. To know more about us and our research, please check our
> >> > homepages:
> >> > http://www.cs.toronto.edu/~oktie
> >> > http://www.cs.toronto.edu/~consens
> >> >
> >> >
> >
> >
> >
Received on Friday, 1 August 2008 12:43:05 UTC

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