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Description logic programs: combining logic programs with description logic
It is shown how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules and ontologies and define a new intermediate knowledge representation contained within this intersection: Description Logic Programs (DLP), and the closely related Description Horn Logic (DHL).
Creating Semantic Web Contents with Protégé-2000
- Natasha Noy, Michael Sintek, S. Decker, Monica Crubézy, R. Fergerson, M. Musen
- Computer ScienceIEEE Intell. Syst.
- 1 March 2001
The authors describe how Protege-2000, a tool for ontology development and knowledge acquisition, can be adapted for editing models in different Semantic Web languages.
EDUTELLA: a P2P networking infrastructure based on RDF
The open source project Edutella is discussed, which builds upon metadata standards defined for the WWW and aims to provide an RDF-based metadata infrastructure for P2P applications, building on the recently announced JXTA Framework.
The Semantic Web: The Roles of XML and RDF
It is argued that a further representation and inference layer is needed on top of the Web's current layers, and to establish such a layer, a general method for encoding ontology representation languages into RDF/RDF schema is proposed.
Optimized index structures for querying RDF from the Web
Optimized index structures for RDF are described, how to process and evaluate queries based on the index structure is shown, a lightweight adaptable implementation in Java is described, and a performance comparison with existing RDF databases is provided.
Ontobroker: Ontology Based Access to Distributed and Semi-Structured Information
Ontobroker is developed which uses formal ontologies to extract, reason, and generate metadata in the WWW, and the generation of RDF descriptions enables the exploitation of the ontological information in RDF-based applications.
Towards Semantically-Interlinked Online Communities
This work presents the SIOC ontology which combines terms from vocabularies that already exist with new terms needed to describe the relationships between concepts in the realm of online community sites.
OIL in a Nutshell
- D. Fensel, I. Horrocks, F. V. Harmelen, S. Decker, Michael Erdmann, M. Klein
- Computer ScienceEKAW
- 2 October 2000
This work will present OIL, which is a proposal for a joint standard for specifying and exchanging ontologies, based on existing proposals such as OKBC, XOL and RDF schema, enriching them with necessary features for expressing ontologies.
TRIPLE - A Query, Inference, and Transformation Language for the Semantic Web
This paper presents TRIPLE, a layered and modular rule language for the Semantic Web . TRIPLE is based on Horn logic and borrows many basic features from F-Logic  but is especially designed…
YARS2: A Federated Repository for Querying Graph Structured Data from the Web
We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from many…