Hi Dimitris, all,
there are some slides about this here:
https://www.slideshare.net/RalphSchaefermeier/d-bpedia-meeting-2015-ralph-schaefermeier-aood
Meanwhile, I was thinking to use Google Spreadsheets as Ontology Editor,
i.e. have one row for each class and property. There are some plus sides:
* Collaborative Editing
* Good overview and fast interface
* Custom functions for validation
* JS extensions possible
* can link fields in tables
* fast editing and tool is known by most of the people
* good filtering
* revisioning, but not so restrictive
* easy to add additional information (make another column or tab)
* chat
I don't see many negative sides that can not be tackled easily:
* OWL Export -> I guess we can use one of the thousand available CSV
to RDF tools
* Visualisation -> e.g. http://visualdataweb.de/webvowl/#
* Axiom diff between versions: not sure about this
* we can still export the ontology and do a git commit with extra
validation and changelog
Also I created a prototype in 20 minutes:
https://docs.google.com/spreadsheets/d/1BYLBVtddrIz5XKKy1HEpPopxEjqd7eVLlLYG7nsYkp8/edit?usp=sharing
Note that for example subclassof Person I linked the field to =A3 for Agent
All the best,
Sebastian
On 28.06.2017 11:57, Dimitris Kontokostas wrote:
Hi Everyone,
[some background info]
Ralf and Alexandru from fu-berlin developed some prototypes some time
ago for maintaining the DBpedia ontology with git / gitlab. It was
accompanied with some mapping tools but we decided to move away from
the DBpedia specific mapping syntax and go for RML at that time.
We could probably reuse the ontology part solution.
@Ralf, Alexandru, can you share your experience and suggestions here?
iirc you already evaluated WebProtege and tried to integrate with the
mappings wiki (WebProtege for ontology / mediawiki for mappings) but
it didn't work out well (due to media wiki) right?
Cheers,
Dimitris
On Wed, Jun 28, 2017 at 11:19 AM, Anastasia Dimou <natadi...@gmail.com
<mailto:natadi...@gmail.com>> wrote:
Dear Adam,
thank you for providing more alternatives for ontology editing!
I guess we do not necessarily need to go for a single solution but
there should be at least one! :) I mean there might be
alternatives and users might choose their preferred. We mainly
thought of checking the stability of the tools, how good they
handle the DBpedia ontology and how easy it is to maintain them
long term.
So far, Web Protege seems to be the best solution as Ismael
mentioned. We will discuss in more details on Thursday though, but
VocBench seems promising too! I'd suggest that you drop an(other)
e-mail once VB3 is released to notify us. Then we can further
investigate this alternative too.
Kind regards,
Anastasia
Hi Ismael and Sebastian
I am not sure if you had a look at Vitro and VocBench.
" Vitro is a general-purpose web-based ontology and instance
editor
with customizable public browsing. Vitro is a Java web application
that runs in a Tomcat servlet container.". This is the link
http://vitro.mannlib.cornell.edu/
<http://vitro.mannlib.cornell.edu/>
"VocBench is a web-based, multilingual, collaborative development
platform for managing OWL ontologies, SKOS(XL) thesauri and
generic
RDF datasets.
VocBench 2, developed in the context of a collaboration
between the
Food and Agriculture Organization of the United Nations (FAO)
and the
ART Group of the University of Rome Tor Vergata, offers a web
environment for maintaining thesauri, code lists and authority
resources, providing advanced collaboration features such as
history,
validation and a publication workflow, and multi-user
management with
role-based access control.
VocBench 3 (or, simply, VB3), still under development, will
offer a
powerful editing environment, with facilities for management
of OWL
ontologies and SKOS/SKOS-XL thesauri. It aims to set new
standards for
flexibility, openness and expressive power as a free and open
source
RDF modelling platform. Its final delivery is planned by the
end of
July 2017." . This is the link
http://vocbench.uniroma2.it/
Regards,
Adam
On Tue, Jun 27, 2017 at 3:49 PM, Sebastian Hellmann
<hellm...@informatik.uni-leipzig.de
<mailto:hellm...@informatik.uni-leipzig.de>> wrote:
Hi Ismael,
On 27.06.2017 14:13, Isma Rodríguez wrote:
Dear Sebastian,
thank you very much. You can find the Github repository on
https://github.com/dbpedia/mappings-ui
<https://github.com/dbpedia/mappings-ui>
Currently, all the goals of the first deliverable have
been reached. The
first deliverable consisted of adapting the Aqua Framework
to the part of
the project requirements related to user management,
permissions, groups,
and editable help pages. In addition, a continuous
integration pipeline with
Travis and Heroku has been created.
Now that I feel more confident with DBpedia and the needed
programming
tools, we are looking into how we can implement the
ontology and mappings
edition.
Regarding the ontology edition, we have checked multiple
options and the
best one seems to be to connect the new UI with an
instance of WebProtege,
as it is a very complete ontology edition tool. One of its
features is that
it keeps a change log of the ontology edits and has history
functionalities.
Of course the idea is that the ontology is moved outside.
Although
WebProtege works with the ontology in an internal
database, we were thinking
about automatically pushing the ontology to a Github
repository whenever a
change is made. This would enable to do any type of check
and integration
system with a hook.
I guess the choice here will be made by the lack of
alternatives. I think,
Google's GWT is fine for frontend development, however,
the great drawback
is that all the javascript and web service calls are
compiled into a very
difficult API, so doing anything except fronted might be
difficult, e.g. I
am not sure whether webprotege provides a REST web service
for Ontology
Export. Otherwise you would need to go deep into the
MongoDB? in the
backend. While you can write a webprotege graphical
extension, I am not
sure, you can do SHACL/SPARQL with OWLAPI which is in the
webprotege
backend.
I recently discovered Dart:
https://www.dartlang.org/faq#q-why-isnt-dart-more-like-haskell--smalltalk--python--scala--other-language
<https://www.dartlang.org/faq#q-why-isnt-dart-more-like-haskell--smalltalk--python--scala--other-language>
and http://www.dockspawn.com/#
But of course it is out of scope to start from scratch
when developing a
graphical OWL editor.
If necessary, we can of course host an own instance of
webprotege on a
DBepdia server.
I will ask around though for alternatives. There is also
http://aksw.org/Projects/Xturtle.html
<http://aksw.org/Projects/Xturtle.html> which has syntax
validation and vocab
autocompletion, if you like editing ontologies as turtle
in github.
Did you look for other OWL editors yet?
In regards with RDFUnit and SHACL, I will comment it with
my mentors on our
Skype call on Thursday. However, if we move the ontology
to a Github
repository, it would be much easier to do any type of checks.
For editing the mappings, we have still to figure out how
to do it, we were
considering integrating RML Editor but still requires
thinking and
discussion.
If you have any suggestions or you notice that something
would be better in
any other way, please feel free to comment. We are in a
very active
discussion to determine the best way to create the UI, so
any idea is very
welcomed.
More ideas for extensions, e.g. we can also keep mappings
to other
ontologies/datasets later and use RML for RDF2RDF.
Cheers,
Sebastian
If you have any question, please ask me or my mentors.
Glad to work with DBpedia.
Best regards,
Ismael Rodríguez.
On 27 Jun 2017 12:28 pm, "Sebastian Hellmann"
<hellm...@informatik.uni-leipzig.de
<mailto:hellm...@informatik.uni-leipzig.de>> wrote:
Hi Ismael, all,
we were brainstorming for a while now and your Google
Summer of Code project
looks promising: http://mappings-ui.herokuapp.com/
<http://mappings-ui.herokuapp.com/>
Overall, we really need to move away from the mappings
wiki. I was wondering
what state your project is in at the moment. Is there a
Github repository?
Are you planning on integrating RDFUnit
(http://rdfunit.aksw.org) into the
UI?
The main reason why I am asking is:
- If we move the ontology out of the Wiki, we can start to
use SHACL to
drive the ontology clean up that is quite necessary.
- If this can be integrated, we would probably try to
encode guidelines into
SHACL/RDFUnit and then build a continuous integration
system, e.g. as Github
hook.
The main feature that we would need however is a good
change log of ontology
edits done, which might be out of scope of your project.
--
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
<https://www.w3.org/community/ld4lt>
Homepage: http://aksw.org/SebastianHellmann
<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
<https://www.w3.org/community/ld4lt>
Homepage: http://aksw.org/SebastianHellmann
<http://aksw.org/SebastianHellmann>
Research Group: http://aksw.org
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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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