There has been some work before in partitioning Wikipedia articles into
Instances and Concepts.
However this is a highly disputed topic. I would go with these being
skos:Concepts :
http://en.wikipedia.org/wiki/Jaguar
http://en.wikipedia.org/wiki/Country
http://en.wikipedia.org/wiki/Leg
and these being instances:
http://en.wikipedia.org/wiki/Barack_obama
http://en.wikipedia.org/wiki/Empire_state_building
with these being problematic:
http://en.wikipedia.org/wiki/Luke_Skywalker
http://en.wikipedia.org/wiki/Roman_Empire
I would not like to discuss this in detail as it might lead to nothing.
Please present a use case. Just to be able to use skos:*Match is not
sufficient. Maybe, we can make "usefullness" the main criteria.
Besides, this might be also something, that you want to tackle in the
Wikipedia Category system, directly ;)
So currently, we have owl:sameAs, skos:*Match and umbel:isLike. Any more?
I wouldn't disallow any of these.
Sebastian
Am 18.01.2013 13:14, schrieb Sarven Capadisli:
Hi Søren,
Yes, that's all valid. The intention was to shift the focus from using
owl:sameAs for most things to skos:*Match where they'd be more
appropriate. Ideally we'll have all sorts of SKOS Collections,
ConceptSchemes, CodeLists for the Concepts which they can be better
targeted. We wouldn't just stop at marking dbo:Countrys also with
skos:Concepts - it is the first step ;)
-Sarven
On 01/17/2013 09:07 PM, Søren Roug wrote:
I'm not sure I get the usefulness of skos:Concept in DBPedia. To get
the list of countries you can do
SELECT ?s WHERE {?s a dbo:Country}
If you do a SELECT ?s WHERE {?s a skos:Concept} you would get
whatever someone decided is a skos:Concept. In principle you could
get all entities in the database. To make it useful you'd have to
make skos:Collections of all the classes (i.e. dbo:Country) and then
use skos:member to connect it all.
The skos:*Match predicates don't have domain/range properties, so
they can be used outside SKOS vocabularies without side-effects.
-- Best regards, Søren Roug ________________________________________
Fra: Sarven Capadisli [[email protected]] Sendt: 17. januar 2013 16:55
Til: Søren Roug; 'Sebastian Hellmann' Cc: Dbpedia-developers; DBpedia
discussion; public-lod Emne: Re: [Dbpedia-discussion] [ANN] Add your
links to DBpedia workflow version 0.1 (this is also an RFC)
I also think this quite important.
What I would really like to see is certain conceptual things in
dbpedia is typed with skos:Concept. That gives me some assurance and
encourages me (and probably others) to use skos:*Match where
appropriate instead of slapping owl:sameAs.
For instance, resources that are of type dbo:Country, can we have
skos:Concept for these for starters? :)
-Sarven
On 01/17/2013 01:22 PM, Søren Roug wrote:
Hi,
I see that you have also added EUNIS links for species. I can
provide you with a much better quality, and I have forked the repo.
But I am concerned about the use of owl:sameAs as the predicate.
The community doesn't have consensus on the species names and we
can't even agree on many species - e.g. is the goat in the Pyrenees
the same species as the one in southern Spain or a subspecies? I
don't want some OWL-aware query tool to be utterly confused.
What I'm asking is: Can I use skos:exactMatch and skos:closeMatch
instead of owl:sameAs?
-- Sincerely yours / Med venlig hilsen, Søren Roug
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|| -----Original Message----- || From: Sebastian Hellmann
[mailto:[email protected]] || Sent: 17 January
2013 10:18 || To: Dbpedia-developers; DBpedia discussion;
public-lod || Subject: Re: [Dbpedia-discussion] [ANN] Add your
links to DBpedia workflow || version 0.1 (this is also an RFC) ||
|| Nice, we received links to 2 data sets yesterday, already,
thanks to || Sarven: http://270a.info || It is a good start and we
are really hoping for more. Note that most of || the links in
http://richard.cyganiak.de/2007/10/lod/imagemap.html only || point
to DBpedia and not outwards. || || In case you are not a Git
expert, GitHub allows you to upload links with || their GUI: || 1.
create an account || 2. fork this repo
https://github.com/dbpedia/dbpedia-links || 3. click on the "create
a file button" and upload your links || 4. send a "pull request" ||
|| We might simplify the way to contribute later. Right now, Git
seems to || be the easiest way. Any ideas are welcome. || all the
best, || Sebastian || || || || Am 16.01.2013 15:06, schrieb
Sebastian Hellmann: || > Dear all, || > || > we thought that it
might be a nice idea to simplify the workflow for || > creating
outgoing links from DBpedia to your data sets. This is why we || >
created the following GitHub repository: || >
https://github.com/dbpedia/dbpedia-links ||
|| > Please feel free to add new files and change the links and
then send us || > a *pull request*. This message is an
announcement as well as a request || > for comments. || > || > Here
is a (non-exhaustive) list of open issue: || > || > - it is yet
unclear, when the links will be loaded into || >
http://dbpedia.org/sparql (maybe with version 3.9? ) || > - we plan
weekly updates to http://live.dbpedia.org || > - yago, freebase and
flickrwrappr have been excluded due to their size ( || > > 0.5GB
) || > - there will be some quality control; not everybody will be
able to || > include any links he wants to include. We are open to
ideas how to || > manage this. Consider "pull requests" as
"application for inclusion" || > - folder/file structure is still
very simple, we will adapt upon uptake || > || > All the best, || >
Sebastian || > || > || > || || || -- || Dipl. Inf. Sebastian
Hellmann || Department of Computer Science, University of Leipzig
|| Projects: http://nlp2rdf.org , http://dbpedia.org || Homepage:
http://bis.informatik.uni-leipzig.de/SebastianHellmann || Research
Group: http://aksw.org
--
Dipl. Inf. Sebastian Hellmann
Department of Computer Science, University of Leipzig
Projects: http://nlp2rdf.org , http://dbpedia.org
Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
Research Group: http://aksw.org
