Re: ANN: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
Chris Bizer wrote: Hi all, we are happy to announce the release of DBpedia version 3.2. The new knowledge base has been extracted from the October 2008 Wikipedia dumps. Compared to the last release, the new knowledge base provides three mayor improvements: 1. DBpedia Ontology DBpedia

AW: ANN: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Chris Bizer
Hi Andreas, we for sure want to do this, but also did not want to postpone the DBpedia 3.2 release any further. So be ensured that the upcoming public user interface for defining the infobox-to-ontology mappings will include the possibility to reuse existing classes and properties and that

Re: [Dbpedia-announcements] ANN: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
Chris Bizer wrote: Hi Andreas, we for sure want to do this, but also did not want to postpone the DBpedia 3.2 release any further. So be ensured that the upcoming public user interface for defining the infobox-to-ontology mappings will include the possibility to reuse existing classes and

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
John Goodwin wrote: Have fun with the new DBpedia knowledge base! Cheers Chris Thanks Chris and team for all your hard work getting this done. I do, however, have a few comments regarding the OWL ontology. I think in general the use of domain and range is perhaps a bit dubious in

Re: [Dbpedia-discussion] ANN: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
John Muth wrote: Congrats all, and big thanks for your continuing great work. The YAGO Classes and YAGO Links links are not working for me just now -- are the URLs wrong or are the files yet to be published? http://downloads.dbpedia.org/3.2/links/yago_en.nt.bz2

RE: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread John Goodwin
Hi Jens, We specified the domains and ranges as disjunctions of classes (not intersection). See the W3C specification of owl:unionOf [1]. The version I downloaded from http://wiki.dbpedia.org/Downloads32 had all the range restrictions as owl:intersectionOf. Or rather properties like

Re: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
Jens Lehmann wrote: Hello John, John Goodwin wrote: Thanks Chris and team for all your hard work getting this done. I do, however, have a few comments regarding the OWL ontology. I think in general the use of domain and range is perhaps a bit dubious in that for many things I think it is

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Sean Bechhofer
On 17 Nov 2008, at 17:00, Jens Lehmann wrote: Hello John, John Goodwin wrote: Thanks Chris and team for all your hard work getting this done. I do, however, have a few comments regarding the OWL ontology. I think in general the use of domain and range is perhaps a bit dubious in that

RE: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread John Goodwin
John's comment relates to (at least) the axioms on publisher: [[ owl:ObjectProperty rdf:about=http://dbpedia.org/ontology/publisher; rdfs:label xml:lang=enpublisher/rdfs:label rdfs:domain owl:Class owl:unionOf rdf:parseType=Collection

RE: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Georgi Kobilarov
Kingsley, What's the URL of the strict one? We are building a DBpedia installer for Virtuoso, so at the very least I want the users of this installer to have choice of strict or loose infobox extraction. Not publicly available yet. There was a buggy first version of strict, but we

Re: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
Georgi Kobilarov wrote: Kingsley, What's the URL of the strict one? We are building a DBpedia installer for Virtuoso, so at the very least I want the users of this installer to have choice of strict or loose infobox extraction. Not publicly available yet. There was a buggy first

RE: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Georgi Kobilarov
In the future, there will be a user interface for specifying domains/ranges. (Georgi is working on it.) We hope that the quality of the schema will increase over time. exactly, we want to enable the community to maintain the dbpedia ontology. let's see how community agreement on a broad

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Azamat
Monday, November 17, 2008 2:11 PM, Chris Bizer wrote: 'We are happy to announce the release of DBpedia version 3.2. ... More information about the ontology is found at: http://wiki.dbpedia.org/Ontology' While opening, we see the following types of Resource, seemingly Entity or Thing:

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Dan Brickley
Azamat wrote: Monday, November 17, 2008 2:11 PM, Chris Bizer wrote: 'We are happy to announce the release of DBpedia version 3.2. ... More information about the ontology is found at: http://wiki.dbpedia.org/Ontology' While opening, we see the following types of Resource, seemingly Entity

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Richard Cyganiak
John, Here's an observation from a bystander ... On 17 Nov 2008, at 17:17, John Goodwin wrote: snip This is also a good example of where (IMHO) the domain was perhaps over specified. For example all sorts of things could have publishers, and not the ones listed here. I worry that if you

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Juan Sequeda
As anybody considered reusing the DBpedia ontology? Juan Sequeda, Ph.D Student Research Assistant Dept. of Computer Sciences The University of Texas at Austin http://www.cs.utexas.edu/~jsequeda [EMAIL PROTECTED] http://www.juansequeda.com/ Semantic Web in Austin:

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Frank Manola
On Nov 17, 2008, at 2:46 PM, Dan Brickley wrote: Azamat wrote: Monday, November 17, 2008 2:11 PM, Chris Bizer wrote: 'We are happy to announce the release of DBpedia version 3.2. ... More information about the ontology is found at: http://wiki.dbpedia.org/Ontology' While opening, we see

Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Hugh Glaser
Very nicely put, Richard. We are opening up the discussion here of when to define one's own and when to (re-)use from elsewhere. I am a bit uncomfortable with the idea of you should use a:b from c and d:e from f and g:h from i... It makes for a fragmented view of my data, and might encourage me

RE: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Chris Wallace
I second Hugh and Richard's point. I think the job the DBPedia people are doing in trying to corral Wikipedia into order is an outstanding contribution. And it's obviously hard. Uniting the various forms of birth date and birth place for example really increases the value of the dataset. And

AW: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Chris Bizer
Hi Hugh and Richard, interesting discussion indeed. I think that the basic idea of the Semantic Web is that you reuse existing terms or at least provide mappings from your terms to existing ones. As DBpedia is often used as an interlinking hub between different datasets on the Web, it should

RE: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Georgi Kobilarov
Ontology is designed to put all things in their natural places, not to make mess of the real world; Most people don't care about structure, they care about content. DBpedia makes Wikipedia's implicit structure explicit in order to make its content more accessible and (re)usable. That's it.

Re: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Peter Ansell
2008/11/18 Chris Bizer [EMAIL PROTECTED] Hi Hugh and Richard, interesting discussion indeed. I think that the basic idea of the Semantic Web is that you reuse existing terms or at least provide mappings from your terms to existing ones. As DBpedia is often used as an interlinking hub

Re: [Dbpedia-discussion] DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Kingsley Idehen
Georgi Kobilarov wrote: Ontology is designed to put all things in their natural places, not to make mess of the real world; Most people don't care about structure, they care about content. DBpedia makes Wikipedia's implicit structure explicit in order to make its content more accessible

Re: AW: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Damian Steer
...trimming reply list... On 17 Nov 2008, at 23:31, Chris Bizer wrote: But what does this mean for WEB ontology languages? Looking at the current discussion, I feel reassured that if you want to do WEB stuff, you should not move beyond RDFS, even aim lower and only use a subset of RDFS

Domain and range are useful Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Tim Berners-Lee
On 2008-11 -17, at 11:27, John Goodwin wrote: [...] I'd be tempted to generalise or just remove the domain/range restrictions. Any thoughts? There are lots of uses for rand and domain. One is in the user interface -- if you for example link a a person and a document, the system can prompt

Re: Domain and range are useful Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Peter Ansell
2008/11/18 Tim Berners-Lee [EMAIL PROTECTED] On 2008-11 -17, at 11:27, John Goodwin wrote: [...] I'd be tempted to generalise or just remove the domain/range restrictions. Any thoughts? There are lots of uses for rand and domain. One is in the user interface -- if you for example link a

Re: Domain and range are useful Re: DBpedia 3.2 release, including DBpedia Ontology and RDF links to Freebase

2008-11-17 Thread Ian Davis
On Tue, Nov 18, 2008 at 4:02 AM, Tim Berners-Lee [EMAIL PROTECTED] wrote: On 2008-11 -17, at 11:27, John Goodwin wrote: [...] I'd be tempted to generalise or just remove the domain/range restrictions. Any thoughts? There are lots of uses for rand and domain. One is in the user interface