www-rdf-rules@w3.org Mail Archives

This mailing list is intented for the discussion of queries and rules for RDF data. We invite practical discussions with the goal of coordination and shared understanding of other implementations. See the list of lists for related mailing lists and a description of their intended content.

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Past events:

2001 Aug 6: RDF query BOF at the First International Semantic Web Working Symposium
- minutes
2003 Feb 5: RDF query BOF at the W3C Technical Plenary 2003
-
Report on RDF-Query and RuleML BOF... We had the longest running BOF. We talked a lot about abstractions, etc, etc,. We started coming up with a model. The problem is that there are RDF recommendations, but now how do you use it? Lots of query languages and protocols. Where is the commonality.
from Town Hall minutes
2003 May 23: RDF query BOF at WWW 2003 - this BOF addressed using XQuery for RDF Query. It overflowed into a second day.
- day 1 minutes
- day 2 minutes
2003 Dec 10: RDF/XQuery BOF at XML 2003
- minutes

Terms:

Following is a set of definitions intended to help clarify terms used on this list. They are subject to debate - feel free to post additions/corrections.

assertion
Insertion of statements into an RDF graph.
graph
A set of RDF statements. A graph may come from a set of documents and rules, a triple store, a topic map, an interface to a relational database, or any other source of RDF statements.
query
A test of an RDF graph for one or more matching subgraphs. A query may test for the existance of a solution or may return a result set.
RDF
The representation of data as triples of predicate, subject, object - sometimes called the RDF model. This does not specify any serialization format, for instance, XML, cwm, S-Expresions.
RDF/XML
A encoding of RDF in XML via the rules defined in the RDF Model and Syntax.
result set
The results of a query. Result sets frequently tie instance data from the graph with variables used in the query.
rule
Expression of query and assertion that causes the automatic insertion of asserted statements wherever the query is matched.
variable
A placeholder for an unknown value in a query or assertion. Variables are used to match statements with any value in that place and to constrain the values in one place in one statement to be equal to a value in another statement.

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Orientation links:

RDF Model and Syntax Recommendation
This document defined the RDF graph model and descibes a serialization in XML.
W3C RDF Project Page
A summary of RDF work and collections of links to RDF activities.
welcome message
Brief description of this list and the invited participants.
RDF Query FAQ
Recording Query Results
defines an RDF vocabulary for record the results of queries
RDF Query and Rules Framework
term description and implementation survey for query/rules systems

Other RDF Lists:

General:

www-rdf-comments
List to receive comments on the W3C Resource Description Framework (RDF) specifications.
www-rdf-interest
Detailed discussion concerning the RDF model, syntax and schema specifications, implementations, W3C process etc.
www-rdf-logic
Detailed technical discussion of all approaches to the use of classical logic on the Web for the representation of data such as inference rules, ontologies, and complex schemata.

Application-specific:

www-rdf-calendar
RDF-based calendar and group scheduling systems.
www-rdf-config
Use of RDF for application configuration.
www-rdf-dspace
Work related to the MIT/HP digital libraries project and its relations to other digital library endeavors.
www-rdf-perllib
Discussions of a set of RDF libraries written in perl.
www-rdf-validator
Forum for those interested in a validator for RDF.