W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > January 2003

Re: problems with RDF datatyping

From: Graham Klyne <GK@NineByNine.org>
Date: Sun, 26 Jan 2003 11:50:51 +0000
Message-Id: <>
To: pat hayes <phayes@ai.uwf.edu>
Cc: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, bwm@hplb.hpl.hp.com, w3c-rdfcore-wg@w3.org

At 12:27 PM 1/21/03 -0700, pat hayes wrote:
>>Then what good is RDF datatyping?
>It presumes some extrnal scheme for locating datatypes (datatyping 
>inforamation, if you like) by usiung urirefs.  It does not provide a means 
>to create such information or to attach it to a uriref; that is the 
>business of the definer of the datatypes in question. RDF can use it, 
>however, once it is defined.

Maybe of interest... as a result of some recent work I did to try and 
describe access control transformations in RDF [1], I'm looking into using 
Haskell [2] as an inference layer for RDF.  I just spent a happy plane 
journey trying to understand how to do lexical->value transforms in a 
purely functional environment using higher order functions.  Being a *pure* 
functional programming environment, Haskell has some nice program 
provability properties which I think would lend well to this area of 
formally defining datatypes.


[1] http://www.ninebynine.org/SWAD-E/Intro.html#HomeNetAccessDemo
(I think the URI is correct, but can't be sure as I've no Internet right now)

[2] http://www.haskell.org/

Graham Klyne
Received on Monday, 27 January 2003 09:28:19 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 20:24:20 UTC