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Efficient TBox Subsumption Checking in Combinations of EL and (fragments of) FL0

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons44479

Gasse,  Francis
Automation of Logic, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45516

Sofronie-Stokkermans,  Viorica
Automation of Logic, MPI for Informatics, Max Planck Society;

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Citation

Gasse, F., & Sofronie-Stokkermans, V. (2011). Efficient TBox Subsumption Checking in Combinations of EL and (fragments of) FL0. In R. Rosati, S. Rudolph, & M. Zakharyaschev (Eds.), Proceedings of the 2011 International Workshop on Description Logics (DL-2011) (pp. 125-135). Aachen, Germany: CEUR Workshop Proceedings.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-14EE-1
Abstract
We study possibilities of combining (fragments) of the lightweight description logics ${\cal F}{\cal L}_0$ and ${\cal E}{\cal L}$, and identify classes of subsumption problems in a combination of ${\cal E}{\cal L}$ and Horn-${\cal F}{\cal L}_0$, which can be checked in PSPACE resp. PTIME. Since ${\cal F}{\cal L}_0$ allows universal role restrictions and ${\cal E}{\cal L}$ allows existential role restrictions, we thus have a framework where subsumption between expressions including both types of role restrictions (but for disjoint sets of roles) can be checked in polynomial space or time.