Hi John,
On 05.07.2017 17:43, John Flynn wrote:
I have long been curious about the DBpedia ontology structure so I
just took a look at the ontology represented in
(https://dl.dropboxusercontent.com/u/375401/dbo_no_mappings.nt) as
referenced in the email below.
I normally start the evaluation of an ontology by looking at the
top-down class relationships. So, I did a search for the classes that
were listed as a direct subclass of owl#Thing to get a general idea of
the organization of the DBpedia class structure.
To say the least, I was sorely disappointed. Here are a few of the
DBpedia classes that are direct subclasses of owl#Thing: Food, Media,
Work, Blazon, Altitude, Language, Currency, Statistic, Diploma, Award,
Agent, PublicService, Disease, GrossDomesticProdutPerCapita,
ElectionDiagram, Demographics, Relationship, Medicine, List,
BioMolecule. I gave up after this small sample. It is obvious that the
DBpedia community needs to worry a lot more about the structure of the
ontology itself rather than focusing on selecting a new editor. A
working group needs to be established to go back to the drawing board
and look at the DBpedia ontology form the top down. It certainly
doesn't make much sense as it is currently structured.
Yes, and we are doing exactly that in a parallel process. Ideally, both
will be finished at the same time, i.e. clean up and new editor and
automatic validation of edits via SHACL/RDFUnit in a pre-commit hook
plus editorial guidelines and process . So three example concerns for
the editor are whether we can add labels/comments for 170 languages, how
they are integrated with the DBpedia Template mappings and also whether
domain experts can help with non-core domain ontologies.
Cheers,
Sebastian
John Flynn
http://semanticsimulations.com
*From:*Sebastian Hellmann [mailto:hellm...@informatik.uni-leipzig.de]
*Sent:* Wednesday, July 05, 2017 10:43 AM
*To:* 'semantic-web at W3C'; public-lod; DBpedia
*Subject:* [DBpedia-discussion] Call for Ontology Editor demos for DBpedia
Dear all,
we are preparing a switch from the mappings wiki
(http://mappings.dbpedia.org) to another ontology editor and started
to collect requirements/tools here:
https://docs.google.com/document/d/1HwtJJ3jIlrQAPwHYhvpw4a4Z4hZorTGaZTB8Bq8Y-TI/edit
We already have a demo for Webprotege thanks to Ismael Rodriguez, our
GSoC student. As we are lacking time and resources, we will probably
only consider editors with a running demo, so the community can try it.
Our main interest is of course to manage the DBpedia core ontology and
push any mappings to other ontologies in separate files. So we provide
a core version for demo purposes created with:
rapper -g dbpedia_2016-10.nt | grep -v
'\(http://schema.org\|http://www.wikidata.org\|http://www.ontologydesignpatterns.org\
<http://schema.org/%7Chttp:/www.wikidata.org/%7Chttp:/www.ontologydesignpatterns.org/>)'
> dbo_no_mappings.nt
https://dl.dropboxusercontent.com/u/375401/dbo_no_mappings.nt
(I hope that the regex didn't kick out anything essential or broke any
axioms...)
We would be very happy, if anyone from the semantic web community
would make a demo with their favorite editor and add a link to the
Google Doc and post a short message on the DBpedia discussion list[1]
or on slack https://dbpedia.slack.com/ .
This would help us to make a more informed decision. The next DBpedia
Dev online meeting will be on 2nd of August 14:00 (each first
Wednesday per month). Presentations of editors are also welcome. We
will also discuss the editor question during the DBpedia meeting in
Amsterdam, co-located with SEMANTiCS on 14.9.
http://wiki.dbpedia.org/meetings/Amsterdam2017
Thank you for your help!
[1] https://sourceforge.net/projects/dbpedia/lists/dbpedia-discussion
--
All the best,
Sebastian Hellmann
Director of Knowledge Integration and Linked Data Technologies (KILT)
Competence Center
at the Institute for Applied Informatics (InfAI) at Leipzig University
Executive Director of the DBpedia Association
Projects: http://dbpedia.org, http://nlp2rdf.org,
http://linguistics.okfn.org, https://www.w3.org/community/ld4lt
<http://www.w3.org/community/ld4lt>
Homepage: http://aksw.org/SebastianHellmann
Research Group: http://aksw.org
--
All the best,
Sebastian Hellmann
Director of Knowledge Integration and Linked Data Technologies (KILT)
Competence Center
at the Institute for Applied Informatics (InfAI) at Leipzig University
Executive Director of the DBpedia Association
Projects: http://dbpedia.org, http://nlp2rdf.org,
http://linguistics.okfn.org, https://www.w3.org/community/ld4lt
<http://www.w3.org/community/ld4lt>
Homepage: http://aksw.org/SebastianHellmann
Research Group: http://aksw.org
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