]> 2012-05-27T21:10:01-04:00 Graph Features SWS # You make a very valid point that just being an "OWL" ontology does not mean that you actually use all of the constructs (is typing classes to owl:Class sufficient for being "OWL"?). I would like to find out the answer to your bet, but I wouldn't place any myself. Why do you think that cardinality restrictions are not used? (TBD...) #two #three #four # Authors quote numbers from a reference to show that the number of OWL ontologies is 6 times lesser than RDFS ontologies. I bet there are very few OWL ontologies that use cardinality restrictions. Inspite of these statistics I am tempted to ask- wouldn't it be relevant to discuss cardinality restrictions in the context of the work in this paper. Cardinality restrictions (special case- functional properties) on a property, relate a class (RESTRICTION) to the range of the property. In addition they restrict the out-degree (total-degree) which is very relevant here. Do you think the same, and if possible how do you think cardinality restrictions can be accounted for? # This probably should have come before the previous question, but since first question led me to think of this one, i keep it second. Many properties are intended to take multiple values. For example a property that relates team to its members, say hasMember. If authors would have considered instance data this would have been accounted for. Therefore it may not be enough to consider a single edge <team, hasMember, players> for total-degree estimations. Do you also see that as a problem? How do you think we can resolve this issue, if there is one? # This question is also in context of those minority ontologies in OWL. I could understand that in the case of allValuesFrom, say C = AllValuesFrom(P,A), we can have an edge <C, P, A>. However, it's not clear from the paper that how the authors take into account someValuesFrom feature of OWL. # What about property hierarchy? It's an RDFS feature. My personal feeling is that its inclusion shouldn't affect the VR and CCDF values for total-degrees (do you think so?). Still.. do you think property hierarchies should have been discussed (or considered) by the authors? Theoharis2008graph presented by Tim Lebo 4 dec 2008 Question for the Presentation Ankesh Khandelwal Question asked by Question asked Question answer Presentation Questions