W3C home > Mailing lists > Public > www-rdf-dspace@w3.org > June 2001

Re: Thoughts on automatic RDF generation for DSpace

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
Message-ID: <20010618161528.A15213@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
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Received on Monday, 18 June 2001 16:15:29 EDT

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