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» Reformulation for Extensional Reasoning
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COMAD
2009
15 years 6 months ago
TRANS: Schema-Aware Mapping of OWL Ontologies into Relational Databases
An ontology is an explicit specification of shared conceptualization. The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies, a...
Saurabh Kejriwal, N. S. Narayanaswamy
DLOG
2008
15 years 7 months ago
A Kernel Revision Operator for Terminologies
Abstract. In this paper, we propose a new method for revising terminologies in description logic-based ontologies. Our revision method is a reformulation of the kernel revision ope...
Guilin Qi, Peter Haase, Zhisheng Huang, Jeff Z. Pa...
DLOG
1998
15 years 6 months ago
Learning Composite Concepts
This paper proposes a framework to learn concepts from di erent kinds of observations. We de ne a language to describe meta-concepts, that represent the sets of possible concepts ...
Patrick Lambrix, Pierpaolo Larocchia
DLOG
2010
15 years 3 months ago
Query Algebra and Query Optimization for Concept Assertion Retrieval
We develop a query algebra that supports efficient assertion retrieval--a natural extension of instance retrieval. The algebra is based on previously developed techniques for index...
Jeffrey Pound, David Toman, Grant E. Weddell, Jiew...
FSEN
2009
Springer
16 years 18 hour ago
Program Logics for Sequential Higher-Order Control
We introduce a Hoare logic for higher-order functional languages with control operators such as callcc. The key idea is to build the assertion language and proof rules around an e...
Martin Berger