The foundational model of anatomy in OWL: Experience and perspectives
Web Semantics: Science, Services and Agents on the World Wide Web
OWL Datatypes: Design and Implementation
ISWC '08 Proceedings of the 7th International Conference on The Semantic Web
High performance reasoning with very large knowledge bases: a practical case study
IJCAI'01 Proceedings of the 17th international joint conference on Artificial intelligence - Volume 1
Exploiting Partial Information in Taxonomy Construction
ISWC '09 Proceedings of the 8th International Semantic Web Conference
Hypertableau reasoning for description logics
Journal of Artificial Intelligence Research
A novel approach to ontology classification
Web Semantics: Science, Services and Agents on the World Wide Web
Computing incoherence explanations for learned ontologies
RR'13 Proceedings of the 7th international conference on Web Reasoning and Rule Systems
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Ontology classification--the computation of subsumption hierarchies for classes and properties--is one of the most important tasks for OWL reasoners. Based on the algorithm by Shearer and Horrocks [9], we present a new classification procedure that addresses several open issues of the original algorithm, and that uses several novel optimisations in order to achieve superior performance. We also consider the classification of (object and data) properties. We show that algorithms commonly used to implement that task are incomplete even for relatively weak ontology languages. Furthermore, we show how to reduce the property classification problem into a standard (class) classification problem, which allows reasoners to classify properties using our optimised procedure. We have implemented our algorithms in the OWL HermiT reasoner, and we present the results of a performance evaluation.