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2002
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Well-Founded Optimism: Inheritance in Frame-Based Knowledge Bases

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Well-Founded Optimism: Inheritance in Frame-Based Knowledge Bases
Abstract. F-logic is a popular formalism for knowledge-intensive applications and, especially, for ontology management in Semantic Web. However, the original F-logic’s semantics for inheritance suffers from a number of anomalies when inheritance and deduction closely interact. This work rectifies this problem and develops a natural model-theoretic semantics for inheritance in frame-based knowledge bases, which supports inference by inheritance as well as inference via rules. Inference by inheritance supports a multitude of features, such as overriding and nonmonotonic multiple inheritance, meta programming, and dynamic inheritance hierarchies — the features that are fundamental to advanced knowledge management. This semantics has been effectively implemented in the Flora-2 system which is extensively used in a number of projects. To the best of our knowledge, this work is the only model-theoretic semantics for nonmonotonic multiple inheritance that applies to general, unrestrict...
Guizhen Yang, Michael Kifer
Added 14 Jul 2010
Updated 14 Jul 2010
Type Conference
Year 2002
Where COOPIS
Authors Guizhen Yang, Michael Kifer
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