Using an O-Telos peer to provide reasoning capabilities in an RDF-based P2P-environment

Authors:
Martin Wolpers;Ingo Brunkhorst;Wolfgang Nejdl
Affiliations:
Institute for Information Systems, University of Hannover, Hannover, Germany;Institute for Information Systems, University of Hannover, Hannover, Germany;Computer Science Department, Stanford University
Venue:
AP2PC'02 Proceedings of the 1st international conference on Agents and peer-to-peer computing
Year:
2002

Citing 5
Cited 0

Principles of database and knowledge-base systems, Vol. I

Principles of database and knowledge-base systems, Vol. I
Telos: representing knowledge about information systems

ACM Transactions on Information Systems (TOIS)
Implementing Telos

ACM SIGART Bulletin - Special issue on implemented knowledge representation and reasoning systems
ConceptBase—a deductive object base for meta data management

Journal of Intelligent Information Systems - Special issue: deductive and object-oriented databases
EDUTELLA: a P2P networking infrastructure based on RDF

Proceedings of the 11th international conference on World Wide Web

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Abstract

The open source project Edutella is an RDF-based Peer-to-Peer infrastructure for digital resources, focusing on learning materials. Building upon the established meta-data standard RDF(S) appropriate for the description of distributed resources in the World Wide Web WWW, it provides a general RDF-based meta-data infrastructure for P2P applications. In this paper, after a short introduction to the Edutella infrastructure, we describe how an Edutella peer based on the conceptual modeling language O-Telos, using the ConceptBase meta-database, can provide storage and reasoning capabilities on RDF meta-data in the P2P network. To provide this feature, we exploit the similarity of the O-Telos data model to the RDF(S) data model, and show how RDF(S) meta-data can easily be stored in the ConceptBase database. Finally, we describe how the Datalog-based Edutella query exchange language RDF-QEL can be naturally expressed by O-Telos query classes.