Practical Reasoning with Nominals in the EL Family of Description Logics
Yevgeny Kazakov, Markus Krötzsch, František Simančík
Practical Reasoning with Nominals in the EL Family of Description Logics
Abstract. The EL family of description logics (DLs) has been designed to provide a
restricted syntax for commonly used DL constructors with the goal to guarantee
polynomial complexity of reasoning. Yet, polynomial complexity does not always
mean that the underlying reasoning procedure is efficient in practice. In this
paper we consider a simple DL ELO from the EL family that admits nominals,
and argue that existing polynomial reasoning procedures for ELO can be
impractical for many realistic ontologies. To solve the problem, we describe
an optimization strategy in which the inference rules required for reasoning with
nominals are avoided as much as possible. The optimized procedure is evaluated
within the reasoner ELK and demonstrated to perform well in practice.
Published at KR2012 (Conference paper)
Download PDF (last update: 13 Jul 2012)
Citation details
- Yevgeny Kazakov, Markus Krötzsch, František Simančík. Practical Reasoning with Nominals in the EL Family of Description Logics. In Gerhard Brewka, Thomas Eiter, Sheila A. McIlraith, eds.: Proceedings of the 13th International Conference on Principles of Knowledge Representation and Reasoning (KR 2012), pp. 264–274. AAAI PressProperty "Publisher" has a restricted application area and cannot be used as annotation property by a user. 2012.
author = {Yevgeny Kazakov and Markus Kr{\"o}tzsch and
Franti\v{s}ek Siman\v{c}\'{i}k},
title = {Practical Reasoning with Nominals in the
{$\mathcal{EL}$} Family of Description Logics},
booktitle = {Proceedings of the 13th International Conference
on Principles of Knowledge Representation and
Reasoning (KR'12)},
editor = {Gerhard Brewka and Thomas Eiter and
Sheila A. McIlraith},
year = {2012},
publisher = {AAAI Press},
pages = {264--274}
}
Remarks
The main reference for ELK is The Incredible ELK. Please use this in citations for the general system. The above paper is specifically about reasoning with nominals in EL, and includes some material that is not found elsewhere.
The above link points to the extended technical report that includes all proofs. The AAAI website has the conference version of this paper.
More information about the software used in this paper and pointers to further publications can be found on the page about ELK Reasoner.
