W3C home > Mailing lists > Public > public-lod@w3.org > August 2009

Re: [Dbpedia-discussion] Fwd: Your message to Dbpedia-discussion awaits moderator approval

From: Tim Finin <finin@cs.umbc.edu>
Date: Mon, 10 Aug 2009 15:24:28 -0400
Message-ID: <4A8073EC.9080405@cs.umbc.edu>
To: Kingsley Idehen <kidehen@openlinksw.com>, Anja Jentzsch <anja@anjeve.de>
CC: "public-lod@w3.org" <public-lod@w3.org>, dbpedia-discussion@lists.sourceforge.net
Kingsley Idehen wrote:
> Your dbpedia --> freebase type link mappings are now live re. the public 
> DBpedia instance.  Very very cool stuff!
> Graph IRI: <http://dbpedia.org/freebase_type_links#>
> ...

I thought that this would be super useful, but when I looked at the
example in the message

  http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fclass%2Fyago%2FNewYorkCityMusicians&urilookup=1

I noticed that the yago:Musician is declared to be owl:equivalentClass
freebase:people/person.  This can't be right.  Greping through the NT
dump I find more than 20K yago classes defined to be the equivalent of
Freebase's people/person, including Uyghurs, murdered children and
Norwegian Eurovision contestants.  Given the semantics of
owl:equivalentClass, all 20K of these yago classes are asserted to
have the same extent.

Now *that's* irrational exuberance!

-- 
 Tim Finin, Computer Science & Electrical Engineering, Univ of Maryland
 Baltimore County, 1000 Hilltop Cir, Baltimore MD 21250. finin@umbc.edu
 http://umbc.edu/~finin 410-455-3522 fax:-3969 http://ebiquity.umbc.edu 
Received on Monday, 10 August 2009 19:25:21 UTC

This archive was generated by hypermail 2.3.1 : Sunday, 31 March 2013 14:24:22 UTC