- From: Art Barstow <barstow@w3.org>
- Date: Mon, 18 Jun 2001 16:15:28 -0400
- To: Peter Breton <pbreton@MIT.EDU>
- Cc: www-rdf-dspace@w3.org
On Tue, Jun 12, 2001 at 09:23:18AM -0400, Peter Breton wrote: > To see the RDF without HTML quoting, use: > > http://www.dspace.org/dspace-demo/test/testrdf.jsp?noquote=true This is great Peter. Seems like it should be relatively straight-forward to create RSS! > Now that I've done this first bit (which is built on Jena), I have all > sorts of questions/problems/issues: Actually, I think Jena has some built-in RSS support ... > And for future directions, thoughts about the implications of SQL-based > persistence and RDF querying are welcome. One possible direction I see > for RDF querying (I'm not sure if it has been thought of already) is to > provide a query capability which uses XML Schema. So, if a Literal value > had type xsd:string, then operators like 'starts_with', 'contains', and > the like could be applied to it. These operations could be mapped back > to the native facilities of the storage component (in this case, SQL > operations like 'foo%', '%foo%', and so forth). WRT what's available, here is a dump my bookmarks regarding RDF query: Implementations: ICS-FORTH - The RDF Query Language (RQL) http://139.91.183.30:9090/RDF/RQL/index.html ILRT - RDF querying using Squish http://swordfish.rdfweb.org/rdfquery/ Algae - the RDF query language used by Annotea http://www.w3.org/1999/02/26-modules/User/Algae-HOWTO.html Intellidimension - RDFGateway RDFQL Reference Manual http://www.intellidimension.com/RDFGateway/Docs/RDFQLmanual.asp rdfDB Query Language http://web1.guha.com/rdfdb/query.html Nexus Query Language http://www.langdale.com.au/RDF/NexusQueryLanguage.html Papers: Query + Metadata + Logic = Metalog [Marchiori, Saarela] http://www.w3.org/TandS/QL/QL98/pp/metalog.html RDF Query Specification [Malhotra, Sundaresan] http://www.w3.org/TandS/QL/QL98/pp/rdfquery.html A Query and Inference Service for RDF [Decker, ...] http://www.ilrt.bris.ac.uk/discovery/rdf-dev/purls/papers/QL98-queryservice/ Enabling Inferencing [Guha, ...] http://www.ilrt.bris.ac.uk/discovery/rdf-dev/purls/papers/QL98-enabling/ No doubt there are things missing so if others know of missing items (especially implementations), please post the pointers. Art ---
Received on Monday, 18 June 2001 16:15:29 UTC