[Crm-sig] About datatypes and graphs

Martin Doerr martin at ics.forth.gr
Tue May 11 20:03:21 EEST 2021

Dear All,

This is an interesting discussion:


Whereas I agree, for our purposes, with the use of datatypes for 
geometries, time etc., as we recommend,

I regard the discussion about Named Graphs as more complex. Curiously, 
the arguments against Named Graphs seem to center around RDFS 
statements, and not graphs of related particulars, so-called "material 

For our purposes, i.e., for describing provenance of facts and 
argumentation about facts, I regard the Named Graph mechanism as a 
superior solution, as long as the described facts are indeed possible 
states of affairs to be taken into account in the same world in which 
the graph content creation is described.

For categorical and counterfactual statements, I think the idea of a 
datatype is not bad. It can be regarded as a content model of an 
information object, without committing to a believe about it.

All the best,


  Dr. Martin Doerr
  Honorary Head of the
  Center for Cultural Informatics
  Information Systems Laboratory
  Institute of Computer Science
  Foundation for Research and Technology - Hellas (FORTH)
  N.Plastira 100, Vassilika Vouton,
  GR70013 Heraklion,Crete,Greece
  Email: martin at ics.forth.gr
  Web-site: http://www.ics.forth.gr/isl

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