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» Specification of nonmonotonic reasoning
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VMCAI
2010
Springer
15 years 11 months ago
Considerate Reasoning and the Composite Design Pattern
We propose Considerate Reasoning, a novel specification and verification technique based on object invariants. This technique supports succinct specifications of implementations wh...
Alexander J. Summers, Sophia Drossopoulou
PADL
2010
Springer
15 years 10 months ago
Implementing Query Answering for Hybrid MKNF Knowledge Bases
Abstract. Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rule...
Ana Sofia Gomes, José Júlio Alferes,...
SEMWEB
2009
Springer
15 years 8 months ago
Queries to Hybrid MKNF Knowledge Bases through Oracular Tabling
An important issue for the Semantic Web is how to combine open-world ontology languages with closed-world (non-monotonic) rule paradigms. Several proposals for hybrid languages all...
José Júlio Alferes, Matthias Knorr, ...
ESWS
2006
Springer
15 years 5 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
CORR
2011
Springer
186views Education» more  CORR 2011»
14 years 9 months ago
A Goal-Directed Implementation of Query Answering for Hybrid MKNF Knowledge Bases
Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rules use non...
Ana Sofia Gomes, José Júlio Alferes,...