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» The logic of proofs, semantically
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DOLAP
2004
ACM
15 years 12 months ago
Evaluating XML-extended OLAP queries based on a physical algebra
In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...
Xuepeng Yin, Torben Bach Pedersen
AMAI
2004
Springer
15 years 12 months ago
Production Inference, Nonmonotonicity and Abduction
We introduce a general formalism of production inference relations that posses both a standard monotonic semantics and a natural nonmonotonic semantics. The resulting nonmonotonic...
Alexander Bochman
EPIA
2003
Springer
15 years 11 months ago
An Evolvable Rule-Based E-mail Agent
The Semantic Web is a “living organism”, which combines autonomously evolving data sources/knowledge repositories. This dynamic character of the Semantic Web requires (declarat...
José Júlio Alferes, Antonio Brogi, J...
ESWS
2006
Springer
15 years 10 months ago
Rules with Contextually Scoped Negation
Knowledge representation formalisms used on the Semantic Web adhere to a strict open world assumption. Therefore, nonmonotonic reasoning techniques are often viewed with scepticism...
Axel Polleres, Cristina Feier, Andreas Harth
KR
2000
Springer
15 years 10 months ago
Reduction rules and universal variables for first order tableaux and DPLL
Recent experimental results have shown that the strength of resolution, the propositional DPLL procedure, the KSAT procedure for description logics, or related tableau-like implem...
Fabio Massacci