Re: Welcome to the RDF*/SPARQL* mailing list

My name is Pat Hayes

Technically retired, but still a ’senior scientist emeritus’ at Florida IHMC

Editor of RDF and RDF 1.1 Semantics, member of the OWL WG, and active participant in SPARQL and OWL-QL work.

I have always thought that RDF reification was a crock, and would be delighted to help with replacing it with something more streamlined. 

I believe that  RDF* would benefit from being given a clear direct semantics of its own, rather than via a reduction mapping to RDF. I would be interested in helping to provide such a semantics, which poses some interesting challenges, but which will I am sure produce some clarification.

RDF* seems to presume that making an assertion about a triple also thereby asserts the triple. This is not how reification was designed to work, and it is in violation of the description of the semantics of reification in the RDF specs. Thus, RDF* is currently not a correct modeling of RDF reification. This issue needs to be addressed and resolved.

I propose an idea for consideration by this community, to allow for meta-descriptions to apply to entire RDF graphs rather than restricted to single triples. The costs of this seem relatively small and the benefits quite great. 

I second Richard Cyganiak’s points #2 and #3.

I also look forward to productive discussions.

Pat

Received on Monday, 8 July 2019 16:04:45 UTC