Table
Database Technology for the Semantic Web
On the Semantic Web
4 + 1 Webs?
Metadata exists for Almost Anything/Everywhere
RDF Objectives
Outline
The Data Independence Issue
The Query Language Issue
Why a Data Model for RDF ?
But RDF has specifics: Serialization syntax
But RDF has specifics: Schema Semantics
But RDF has specifics: Superimposed Descriptions
Existing Data Models
A Semistructured Data Model for RDF
Towards a Formal Data Model for RDF
Why a Type System for RDF ?
Towards a Type System for RDF
Diapositive PPT
Schema Constraints
Data Constraints
Comparing RDF/S to XML DTD/Schemas
Looking at existing RDF Applications
Statistics of RDF Schemas
Statistics of RDF Schemas
Statistics of RDF Schemas
Querying RDF Descriptions: An Introduction to RQL
The RDF Query Language (RQL)
A Cultural Community Resource Description Example
Querying Large RDF Schemas with RQL
Class & Property Querying
Schema Navigation using RQL
Exporting Schemas using RQL Queries
Querying Complex RDF Descriptions with RQL
Navigating in Description Graphs using RQL
Using Schema to Filter Resource Descriptions
Discover the Schema of RDF Descriptions
And if you still like triples Ö
Comparing RQL to W3C XQuery
Comparing RQL to W3C XQuery
Comparing RQL to W3C XQuery
Comparing RQL to W3C XQuery
Comparing RQL to W3C XQuery
Diapositive PPT
Modeling the ODP Catalog with RDF/S
ODP Statistics
Generic Representation
Specific Representation
DBMS Size vs. Schema Triples
DBMS Size vs. Data Triples
Query Templates for RDF description bases
Execution Time of RDF Benchmark Queries
Comparison
The ICS-FORTH RDFSuite: High-level and Scalable Tools for the Semantic Web http://139.91.183.30:9090/RDF/
Diapositive PPT
The RDFSuite Main Components
The RDFSuite Architecture
Validating RDF Parser (VRP)
VRP Interface
VRP Features
RDF Schema Specific DataBase (RSSDB)
RSSDB Interface
RSSDB Features
RDF Query Language (RQL)
RQL Web Interface
RQL Features
RDFSuite Summary
Other Issues
RDF and XML: Convergence or Divergence ?
Diapositive PPT
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