Excellent examination of the complex DBpedia ontology issues. Some comments:
Many problems arise from the misunderstanding of semantic classes as set theory
and any editing process should force a verification that any new subclass is in
fact a true subclass where all members are also members of the super class(es).
It also seems that many problems might be addressed by the use of an upper
ontology that addresses consistent treatment of common concepts such as spatial
and temporal, and possibly others such as naming concepts. The editor should
force compliance with the rules of the upper ontology. A DBpedia upper ontology
would also facilitate breaking the overall ontology into domain specific areas
for easier management by knowledge experts in each domain of interest. The
editor should force each domain of interest to comply with the concepts in the
upper ontology.
John Flynn
http://semanticsimulations.com
From: Sebastian Hellmann [mailto:hellm...@informatik.uni-leipzig.de]
Sent: Sunday, July 02, 2017 9:58 AM
To: DBpedia; sch...@inf.fu-berlin.de; Gerard Kuys
Subject: [DBpedia-discussion] Ontology Editor comparison
Hi all,
for the dev telco on Wednesday, I prepared a Google doc which lists pros and
cons of different editors:
https://docs.google.com/document/d/1HwtJJ3jIlrQAPwHYhvpw4a4Z4hZorTGaZTB8Bq8Y-TI/edit#
<https://docs.google.com/document/d/1HwtJJ3jIlrQAPwHYhvpw4a4Z4hZorTGaZTB8Bq8Y-TI/edit>
Note that I am especially interested in tracking the ontology and keep its
consistency. We don't need a GUI with the sole purpose that people can add
classes randomly like it is already the case in the mappings wiki. So turtle is
a plus as you can assume some experience with OWL editing. Discussion and
discussion tracking feature is also quite important, the slides of Vladimir
summarize this quite well: https://www.slideshare.net/valexiev1/dbpedia-problems
For other tasks, which are simple we need very easy ways to contribute, e.g.
class and property labels in all languages or adding links to other
vocabularies, although these need to be validated carefully, see also slides
from Vlad.
--
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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