- From: Jeff Z. Pan <pan@cs.man.ac.uk>
- Date: Fri, 5 Apr 2002 17:42:23 +0100
- To: "Pat Hayes" <phayes@ai.uwf.edu>
- Cc: "Ian Horrocks" <horrocks@cs.man.ac.uk>, <www-rdf-logic@w3.org>, "Steven Gollery" <sgollery@cadrc.calpoly.edu>
Dear Pat, Thank you for your email. > Your message made me take a closer look at this paper, >and I have to > say that it seems to be filled with an astonishing number of > mistakes, assertions made with no supporting evidence, and what are > essentially aesthetic opinions stated as though they were facts. I > will list a few here. Thank you. This paper was published in SWWS in July 2001. It is funny to think about the fact that it WAS accepted though it had at least 23 "mistakes". We believe these so called "mistakes" at least reveal that you viewed/interpreted the RDFS syntax in a different way than we did in this paper. Let's go to the most important point: > 10. RDFS has an unclear semantics. This work pre-dates the RDF Model Theory. Since RDF Schema Specification 1.0 gave no formal semantics for RDFS, this work tried to give a model-theoretic semantics to RDFS. While as some other works [1-3] point out, some elements of RDFS have dual roles ( examples can be found in this paper and a brief description of dual roles is also given in the discussion section ), which means some RDFS element may have more than one interpretations. This work solves the problem by mapping RDFS to RDFS(FA), so that no more RDFS elements have dual roles and then formal semantics can easily be given to RDFS(FA). [1] W. Nejdl, M. Wolpers, and C. Capelle. The RDF Schema Specification Revisited. In Modelle und Modellierungssprachen in Informatik und Wirtschaftsinformatik, Modellierung 2000, Apr. 2000. [2] J. Broekstra, M. Klein, S. Decker, D. Fensel, F. van Harmelen, and I. Horrocks. Enabling knowledge representation on the Web by extending RDF Schema, Nov. 2000. [3] Arjohn Kampman and Frank van Harmelen. Sesame's interpretation of RDF Schema. Aidministrator Netherland Note, URL http://sesame. aidministrator.nl/doc/rdf-interpretation.html, Apr. 2001. Best regards, Jeff -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jeff Z. Pan (Home Page: http://www.cs.man.ac.uk/~panz ) Room 2.100 email: pan@cs.man.ac.uk Department of Computer Science Tel:+44 (0)161 275 6145 University of Manchester Fax:+44 (0)161 275 6236 Oxford Road, Manchester M13 9PL,UK Here is a Map to Jeff's office: http://uk.multimap.com/p/browse.cgi?pc=M139PL&GridE=&GridN=&scale=10000&titl e=Welcome%20to%20Jeff's%20Office&cat=www ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Received on Friday, 5 April 2002 11:57:03 UTC