- From: Antoine Zimmermann <antoine.zimmermann@emse.fr>
- Date: Wed, 16 Nov 2011 18:23:37 +0100
- To: public-rdf-wg@w3.org
As we ran out of time to discuss this, I would like to say that having literals in the 4th position of N-Quads is very useful. Especially, think about xsd:dateTime, xsd:anyURI. The advantage of this is that what typed literals denote is unambiguous. So you know you are referring to the time when using an xsd:dateTime-typed literal. You also know that you are referring to a URI when using xsd:anyURI, instead of referring to the thing denoted by the URI. It makes extensions of RDF easier for, e.g., temporal RDF, RDF with trust (use a xsd:decimal to indicate level of trust/confidence), provenance-RDF (use xsd:anyURI to denote the provenance URL unambiguously), etc. If one uses a URI instead, it is always up to interpretations what that URI denotes. It could denote the graph itself but could as well denote the document where the triple is found or the main entity in the graph, as we already discussed. Using a URI is more flexible, though, so it must be allowed too. However, I don't see interesting use cases for bnodes in the 4th column. -- Antoine Zimmermann ISCOD / LSTI - Institut Henri Fayol École Nationale Supérieure des Mines de Saint-Étienne 158 cours Fauriel 42023 Saint-Étienne Cedex 2 France Tél:+33(0)4 77 42 66 03 Fax:+33(0)4 77 42 66 66 http://zimmer.aprilfoolsreview.com/
Received on Wednesday, 16 November 2011 17:24:04 UTC