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» Formalizing Ontological Commitment
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WWW
2004
ACM
15 years 10 months ago
OREL: an ontology-based rights expression language
This paper proposes an Ontology-based Rights Expression Language, called OREL. Based on OWL Web Ontology Language, OREL allows not only users but also machines to handle digital r...
Yuzhong Qu, Xiang Zhang, Huiying Li
CADE
2007
Springer
15 years 10 months ago
Conservative Extensions in the Lightweight Description Logic EL
We bring together two recent trends in description logic (DL): lightweight DLs in which the subsumption problem is tractable and conservative extensions as a central tool for forma...
Carsten Lutz, Frank Wolter
WWW
2009
ACM
15 years 4 months ago
Instance-based probabilistic reasoning in the semantic web
Most of the approaches for dealing with uncertainty in the Semantic Web rely on the principle that this uncertainty is already asserted. In this paper, we propose a new approach t...
Pedro Oliveira, Paulo Gomes
ISMIS
2009
Springer
15 years 4 months ago
Semantic-Based Top-k Retrieval for Competence Management
Abstract. We present a knowledge-based system, for skills and talent management, exploiting semantic technologies combined with top-k retrieval techniques. The system provides adva...
Umberto Straccia, Eufemia Tinelli, Simona Colucci,...
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SEMWEB
2009
Springer
15 years 4 months ago
Semantic Usage Policies for Web Services
Web Services provide standardized interfaces for accessing software systems and data sources over the Internet. Semantic descriptions of Web Services help to automate the discovery...
Sebastian Speiser