- From: by way of <gregkar@ics.forth.gr>
- Date: Mon, 19 Nov 2001 08:51:01 -0500
- To: www-rdf-interest@w3.org
[freed from spam trap -ralph]
Date: Mon, 12 Nov 2001 07:11:19 -0500 (EST)
Message-ID: <Pine.GSO.4.33.0111121321510.23490-100000@athena.ics.forth.gr>
From: Greg Karvounarakis <gregkar@ics.forth.gr>
To: <www-rdf-interest@w3.org>
cc: Vassilis Christophides <christop@ics.forth.gr>,
Dimitris Plexousakis <dp@ics.forth.gr>,
Alexaki Sofia <alexaki@ics.forth.gr>,
Greg Karvounarakis <gregkar@ics.forth.gr>,
<tolle@dbis.informatik.uni-frankfurt.de>
Please accept our apologies for any cross-postings
==================================================
Dear all,
We are pleased to announce the latest release of the ICS-FORTH RDFSuite,
a set of high-level Scalable Tools for the Semantic Web:
- The Validating RDF Parser (VRP), v2.0, supporting semantic validation
of both resource descriptions and schemas.
- The RDF Schema Specific Data Base (RSSDB) Loader, v1.0,
that uses RDF Schema knowledge to automatically generate
an Object-Relational (SQL3) representation of RDF metadata and load
resource descriptions.
- The RDF Query Language Interpreter (RQL), v1.0, a Declarative
Language for uniformly querying RDF schemas and resource descriptions.
RDF Suite is available for download under an Open Source Software
License from the Web site http://139.91.183.30:9090/RDF/. RDF Suite
has been partially supported by the EU projects C-Web (IST-1999-13479)
and MesMuses (IST-2001- 26074).
VRP v2.0 main features (available for download)
===============================================
Supports:
- Embedded RDF in HTML or XML
- XML Schema Data Types (http://www.w3.org/TR/xmlschema-2/)
- Full Unicode
- The updated RDF syntax (http://www.w3.org/TR/rdf-syntax-grammar/)
Various Options
- Debugging
- Serialization under the form of triples or graphs
- Statistics (time, characteristics) of validated schemas and
resource descriptions
Easy to use as a standalone application
- Graphical User Interface
- No XML software needs to be installed
Easy to integrate with other applications
- RDF Model Construction and Validation Java APIs
RSSDB Loader v1.0 main features (available for download)
========================================================
Customization of the database representation according to
- Employed meta-schemas
- RDF schemas and description bases peculiarities
- Query functionality of applications
Various Options
- Debugging
- Incremental loading (detecting changes) of RDF namespaces
- Statistics (loading time, characteristics) of stored schemas and
resource descriptions
Easy to use as a standalone application
- Graphical User Interface
- Requires only JDBC-compliant ORDBMS
Easy to integrate with other applications
- RDF Model Loading & Update Java APIs
RQL v1.0 main features (online demo available at
the moment, source code distribution coming soon!)
==================================================
Supports:
- XML Schema data types (for filtering literal values)
- grouping primitives (for constructing nested XML results)
- aggregate functions (for extracting statistics)
- recursive traversal of class and property hierarchies (for advanced
matchmaking)
Pushes as much as possible query evaluation to the underlying DBMS
- Benefit from robust SQL3 query engines
- Extensive use of DB indices
Provides generic RDF/XML result form
- XSL/XSL processing for customized rendering
Easy to couple with commercial ORDBMSs
- RDF Querying APIs (SQL3/C++ functions)
Easy to integrate with Web Application Servers
- C++ or Java drivers to RQL servers
Easy to learn and use
- One day training
Please also take a look at the repository of currently available RDF
schemas in our site: http://139.91.183.30:9090/RDF/Examples.html
We are looking forward to receiving your comments and suggestions.
Best regards
Grigoris Karvounarakis
Received on Monday, 19 November 2001 08:51:02 UTC