- From: Pat Hayes <phayes@ai.uwf.edu>
- Date: Tue, 22 Jan 2002 16:02:23 -0600
- To: Sergey Melnik <melnik@db.stanford.edu>
- Cc: w3c-rdfcore-wg@w3.org
>....> >> Since this whole "literal" terminology is so confusing, I think it >> would be safest to avoid the use of simple unqualified terms >> altogether. Let me therefore modify my suggestion to the following, >> which is more longwinded (and less 'orthogonal') but has the merit of >> making everything very clear: >> >> I(URI) = I(uriref) = resource (ie same as present) >> I(literal token) = datatype value >> >> This keeps "literal" completely outside any semantic domain, and >> also emphasizes even to the casual reader the token/value >> distinction; and it has the advantage, already noted, of being >> consistent with DAML terminology at the semantic level. >> >> OK with that? >> >> Pat > >You know, I still would not use "datatype value". We kind of agreed to >use the terms "value spaces" and "lexical spaces" in datatyping such >that lexical spaces are subsets of what is currently called set of >"literal values". Oh dear, I hope we have not agreed to do that. That would put lexical items into the semantic domain. This seems to be getting *extremely* confused (and confusing). My basic understanding is that the terms "lexical space" and "value space" refer respectively to syntactic and semantic kinds of things. (Of course, since the latter include strings, one can use them to encode syntax; but the conceptual distinction still remains. >It seems more natural to baptize the elements of the >value spaces of datatypes as "datatype values"... Right; and since all literals need a datatyping scheme to have their denotations specified (right?) , those semantic values will of necessity be datatype values (no?). > >My counterproposal is just > >I(literal token) = literal value Sigh. The problem is that this is where we came in. Patrick was honestly confused by the use of "literal value" in precisely this way in the current MT, so I was looking for an alternative that would be completely unambiguous. Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 home 40 South Alcaniz St. (850)202 4416 office Pensacola, FL 32501 (850)202 4440 fax phayes@ai.uwf.edu http://www.coginst.uwf.edu/~phayes
Received on Tuesday, 22 January 2002 17:02:20 UTC