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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Extracting Modules from Ontologies: A Logic-Based Approach
verfasst von : Bernardo Cuenca Grau, Ian Horrocks, Yevgeny Kazakov, Ulrike Sattler
Erschienen in: Modular Ontologies
Verlag: Springer Berlin Heidelberg
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The ability to extract meaningful fragments from an ontology is essential for ontology reuse. We propose a definition of a module that guarantees to completely capture the meaning of a given set of terms, i.e., to include all axioms relevant to the meaning of these terms. We show that the problem of determining whether a subset of an ontology is a module for a given vocabulary is undecidable even for OWL DL. Given these negative results, we propose sufficient conditions for a for a fragment of an ontology to be a module. We propose an algorithm for computing modules based on those conditions and present our experimental results on a set of real-world ontologies of varying size and complexity.