Viewing the Semantic Web through RVL Lenses

Personalized access and content syndication involving diverse conceptual representations of information resources are two of the key challenges of real-scale Semantic Web (SW) applications, such as e-Commerce, e-Learning or e-Science portals. RDF/S represents nowadays the core SW language for creating and exchanging resource descriptions worldwide. Unfortunately, full-fledged view definition languages for the RDF/S data model are still missing. We propose RVL, a view definition language capable of creating not only virtual resource descriptions, but also virtual RDF/S schemas from (meta)classes, properties, as well as, resource descriptions available on the Semantic Web. RVL exploits the functional nature and type system of the RQL query language in order to navigate, filter and restructure complex RDF/S schema and resource description graphs.

[1]  Steffen Staab,et al.  Views for light-weight Web ontologies , 2003, SAC '03.

[2]  Elke A. Rundensteiner Multiview: A Methodology for Supporting Multiple Views in Object-Oriented Databases , 1992, VLDB.

[3]  Chun Zhang,et al.  Storing and querying ordered XML using a relational database system , 2002, SIGMOD '02.

[4]  Philip A. Bernstein,et al.  A vision for management of complex models , 2000, SGMD.

[5]  Wolfgang Nejdl,et al.  TRIPLE: A Logic for Reasoning with Parameterized Views over Semi-Structured Data , 2002 .

[6]  Vassilis Christophides,et al.  RQL: A Functional Query Language for RDF , 2004 .

[7]  Dan Brickley,et al.  Resource Description Framework (RDF) Model and Syntax Specification , 2002 .

[8]  L. Stein,et al.  OWL Web Ontology Language - Reference , 2004 .

[9]  Serge Abiteboul,et al.  Objects and views , 1991, SIGMOD '91.

[10]  Dieter Fensel,et al.  Product Data Integration in B2B E-Commerce , 2001, IEEE Intell. Syst..

[11]  Elisa Bertino,et al.  A formal model of views for object-oriented database systems , 1997 .

[12]  Dan Brickley,et al.  Rdf vocabulary description language 1.0 : Rdf schema , 2004 .

[13]  Roy T. Fielding,et al.  Uniform Resource Identifiers (URI): Generic Syntax , 1998, RFC.

[14]  C. M. Sperberg-McQueen,et al.  eXtensible Markup Language (XML) 1.0 (Second Edition) , 2000 .

[15]  Vassilis Christophides,et al.  Ontology Storage and Querying , 2002 .

[16]  Michel Klein,et al.  Combining and relating ontologies: an analysis of problems and solutions , 2001, OIS@IJCAI.

[17]  Val Tannen,et al.  The Information Integration System K2 , 2003, Bioinformatics.

[18]  Vassilis Christophides,et al.  The ICS-FORTH SWIM: A Powerful Semantic Web Integration Middleware , 2003, SWDB.

[19]  Ian Horrocks,et al.  OWL Web Ontology Language Reference-W3C Recommen-dation , 2004 .

[20]  J. Stanley,et al.  Book Review: Taxonomy of Educational Objectives, The Classification of Educational Goals, Handbook I: Cognitive Domain , 1957 .

[21]  Vassilis Christophides,et al.  On labeling schemes for the semantic web , 2003, WWW '03.

[22]  Charles W. Bachman Summary of current work ANSI/X3/SPARC/study group: database systems , 1974, SGMD.

[23]  Serge Abiteboul,et al.  Virtual Schemas and Bases , 1994, EDBT.

[24]  Vassilis Christophides,et al.  RQL: a declarative query language for RDF , 2002, WWW.

[25]  David G. Durand,et al.  Semantic Heterogeneity Among Document Encoding Schemes Final Report for NIST Federal Assistance Contract 60 NANB 0 D 0115 , 2002 .

[26]  C. M. Sperberg-McQueen,et al.  Extensible Markup Language (XML) , 1997, World Wide Web J..

[27]  James A. Hendler,et al.  The Semantic Web" in Scientific American , 2001 .