- From: Jim Hendler <hendler@cs.umd.edu>
- Date: Thu, 29 May 2003 15:54:28 -0400
- To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
- Cc: schreiber@swi.psy.uva.nl, jjc@hplb.hpl.hp.com, www-webont-wg@w3.org
At 3:37 PM -0400 5/29/03, Peter F. Patel-Schneider wrote: >I don't see anything in what Guus quotes to indicate that there has been a >decision on whether owl:sameAs is in OWL DL. > >peter WG decided that owl:sameAs is a synonym for owl:sameIndividualAs (issue 4.6) owl:sameIndividualAs is in OWL Lite (http://www.w3.org/TR/owl-semantics/syntax.html#2.2) I therefore read our record (based on a simple syllogism) as placing owl:sameAs in Lite. Both chairs now agree that the WG did indeed decide owl:sameAs is in DL/Lite. Could one of the editors of S&AS please make the change, or offer new evidence that the chairs should reconsider the decision thanks JH > > >From: Jim Hendler <hendler@cs.umd.edu> >Subject: Re: owl:sameAs confusion (Ref and Guide) >Date: Thu, 29 May 2003 15:32:15 -0400 > >> At 1:24 PM -0400 5/29/03, Peter F. Patel-Schneider wrote: >> >I am not convinced that there has been a decision on whether owl:sameAs is >> >in OWL DL. >> > >> >peter >> >> >> Peter, I would hope that your disagreement with the chair on this >> issue was backed up with something -- Guus seems to have quoted >> appropriate sources and to have stated that he is not revisiting the >> decision. I don't see anything saying he is suggesting this as a >> personal prefence, so it appears that it was sent in his chair's >> role. Short of showing he's wrong, "I'm not convinced" doesn't seem >> to me to overrule such a decision... >> -JH >> the "other" chair. >> >> > >> > >> >From: Guus Schreiber <schreiber@swi.psy.uva.nl> >> >Subject: Re: owl:sameAs confusion (Ref and Guide) >> >Date: Wed, 28 May 2003 14:17:52 +0200 >> > >> >> >> >> [reposted from my old address, for some reason my first reply did not >> >> make it to the list] >> >> >> >> Jeremy Carroll wrote: >> >> > >> >> > >> >> > The HP team report that we have had difficulty working on owl:sameAs >> >> > because different team members are working from different documents. >> >> > >> >> > S&AS excludes owl:sameAs from OWL DL and OWL Lite. >> >> >> >> >> >> This looks to me like a bug. The final resolution on Issue 4.6 >> >> (EquivalentTo) >> >> >> >> http://www.w3.org/2001/sw/WebOnt/webont-issues.html#I4.6-EquivalentTo >> >> >> >> states clearly that sameAs is a synonym for sameIndividualAs and says >> >> nothing about it only being in Full. The minutes of the relevant telecon >> >> (Nov 11) contain a suggested methodological guideline that sameAs may >> >> typically be used in Full when the types of the subject/object are >> >> unknown, but that's something different. >> >> >> >> > Guide recommends not using owl:sameAs (ever), but states that it is >> >> > synonymous with owl:sameIndividualAs, and suggests that using >> >> > owl:sameAs between classes is in full. >> >> > Ref is more positive about owl:sameAs. >> >> > >> >> > It would be helpful if the story were clearer, in particular Ref and >> >> > Guide should say that all uses of owl:sameAs are in Full >> >> >> >> Not true, see above. >> >> >> >> > (personally, I would not mind simply dropping owl:sameAs). >> >> >> >> The introduction of the synonym was part of a WG compromise (some >> >> preferred sameAs instead of sameIndividualAs). I see no reason to >> >> revisit this decision. >> >> >> >> I propose the S&AS, Guide and Ref editors take actions to ensure their >> >> documents are consistent with the current resolution. >> >> >> >> Guus >> >> >> >> > >> >> > Jeremy >> >> > >> >> > >> >> >> >> -- >> >> Free University Amsterdam, Computer Science >> >> De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands >> >> Tel: +31 20 444 7739/7718 >> >> E-mail: schreiber@cs.vu.nl >> >> Home page: http://www.cs.vu.nl/~guus/ >> >> >> >> >> >> -- >> Professor James Hendler hendler@cs.umd.edu >> Director, Semantic Web and Agent Technologies 301-405-2696 >> Maryland Information and Network Dynamics Lab. 301-405-6707 (Fax) >> Univ of Maryland, College Park, MD 20742 240-731-3822 (Cell) >> http://www.cs.umd.edu/users/hendler -- Professor James Hendler hendler@cs.umd.edu Director, Semantic Web and Agent Technologies 301-405-2696 Maryland Information and Network Dynamics Lab. 301-405-6707 (Fax) Univ of Maryland, College Park, MD 20742 240-731-3822 (Cell) http://www.cs.umd.edu/users/hendler
Received on Thursday, 29 May 2003 15:58:21 UTC