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» Complexity Results for Modal Dependence Logic
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PVLDB
2010
151views more  PVLDB 2010»
13 years 5 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
AI
2008
Springer
13 years 7 months ago
What makes propositional abduction tractable
Abduction is a fundamental form of nonmonotonic reasoning that aims at finding explanations for observed manifestations. This process underlies many applications, from car configu...
Gustav Nordh, Bruno Zanuttini
PODS
2008
ACM
110views Database» more  PODS 2008»
14 years 7 months ago
Static analysis of active XML systems
Active XML is a high-level specification language tailored to dataintensive, distributed, dynamic Web services. Active XML is based on XML documents with embedded function calls. ...
Serge Abiteboul, Luc Segoufin, Victor Vianu
HICSS
2008
IEEE
105views Biometrics» more  HICSS 2008»
13 years 7 months ago
Evaluating the Effect of Upgrade, Control and Development Strategies on Robustness and Failure Risk of the Power Transmission Gr
We use the OPA complex systems model of the power transmission system to investigate the effect of a series of different network upgrade scenarios on the long time dynamics and th...
David E. Newman, Benjamin A. Carreras, Vickie E. L...
ESWS
2010
Springer
13 years 11 months ago
Scalable and Parallel Reasoning in the Semantic Web
Abstract. The current state of the art regarding scalable reasoning consists of programs that run on a single machine. When the amount of data is too large, or the logic is too com...
Jacopo Urbani