Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-06 Thread Markus Krötzsch
Hi Benjamin, Thanks for clarifying. I see your problem and I agree with your approach. In fact, I think Webprotege is a big step forward in terms of collaborative ontology editing. One could certainly improve this much further, but there are many good ideas there. I am not sure that it would

Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-06 Thread Benjamin Good
Hi Markus, Thanks for your responses. Markus, I think the point that Sebastian was raising has more to do with practices for communities working on data modeling for wikidata than specifically about OWL semantics. Let me explain a little further. We are a group of 3-7 (depending on the week) pe

Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-06 Thread Markus Krötzsch
On 06.04.2015 22:02, Markus Krötzsch wrote: Dear Sebastian, Using OWL is surely a nice idea when the semantics is appropriate (i.e., where you want Open-World entailment, not constraints) and here the Possibly misleading typo: I meant "where", not "here" ;-) -- Markus expressiveness is enou

Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-06 Thread Markus Krötzsch
Dear Sebastian, Using OWL is surely a nice idea when the semantics is appropriate (i.e., where you want Open-World entailment, not constraints) and here the expressiveness is enough. This is much more difficult, however, than one might at first think it is. For a simple example, the common Wik

Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-04 Thread Emw
Sebastian, Benjamin, Elvira, Andra, Andrew, Kudos on your progress with an OWL-centric approach to knowledge representation. The community has been incorporating OWL concepts into property definitions and ontology development on-wiki for some time, but yours is the first Wikidata group I'm aware

Re: [Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-03 Thread Jane Darnell
Interesting approach, and one I would support. I have been against forcing Wikidata into any other "jacket" than one of its own knitting, but this approach makes OWL look like any other external database that may or may not come with properties worth integrating into Wikidata's "jacket" On Fri, Ap

[Wikidata-l] OWL based ontologies as basis for Wikidata item interactions and property proposal

2015-04-03 Thread Sebastian Burgstaller
Hello all, Wikidata consists of millions of single data items, which is great. In order to facilitate modeling the interactions between the single items, we hereby suggest using OWL based ontologies ( http://en.wikipedia.org/wiki/Web_Ontology_Language). We think that using ontologies brings sever