- From: Wei Xing <xing@ucy.ac.cy>
- Date: Mon, 20 Dec 2004 11:43:12 +0200
- To: www-rdf-interest@w3.org
Dear all, Does anybody have the experience of representing time-sensitive resources using RDF/S? In particular, for the time-sensitive properties? I am trying to describe some time-sensitive resources using RDF/S, of which the values (Object) of the properties (Predicate) are changed from time to time, for instance, a computer cluster (the network bandwidth and the free CPUs number of the cluster are dynamical). My way, to describe a "Cluster" using RDF/S, can be descibed as follows: First, I describe the "Cluster" using reification, i.e. attaching a constraint (valid only for the year 2004) to the Cluster. Second, I descibe its properties, e.g. network bandwidth (at the testing moment) using a 4-tuple format ({Subject, Predicate, [Object, timestamp]}). The RDF metadata is shown as follows: .... <rdf:Description> <rdf:subject rdf:resource="http://grid.ucy.ac.cy/someCluster1" /> <rdf:predicate rdf:resource="http://grid.ucy.ac.cy/2003/12/GrisenSchema#bandWidth" /> <rdf:object > <rdf:Seq> <b> 125Mbits </b> <t> 200412201023 </t> </rdf:Seq> </rdf:object> ...... <rdf:type rdf:resource = "http://www.w3.org/1999/02/22-rdf-syntax-ns#statement" /> <grisen:validFor> 2004 </grisen:validFor> </rdf:Description> .... Not sure if my way is OK? Is there another way that allows me to describe such property and its value using RDF without conflicting the exsiting RDF recommendation? I appreciate any comments and suggestions on it. Best regard Wei Xing -- ============================================================ Wei Xing, M.Sc. Research Associate Tel: 00357-22892663 Dept. of Computer Science Fax: 00357-22892701 University of Cyprus email: xing@ucy.ac.cy PO Box 20537 CY1678, Nicosia, CYPRUS
Received on Monday, 20 December 2004 10:09:02 UTC