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The Probabilistic Description Logic

Published online by Cambridge University Press:  11 December 2020

LEONARD BOTHA
Affiliation:
University of Cape Town and CAIR, South Africa
THOMAS MEYER
Affiliation:
University of Cape Town and CAIR, South Africa
RAFAEL PEÑALOZA
Affiliation:
University of Milano-Bicocca, Italy (e-mail: rafael.penaloza@unimib.it)

Abstract

Description logics (DLs) are well-known knowledge representation formalisms focused on the representation of terminological knowledge. Due to their first-order semantics, these languages (in their classical form) are not suitable for representing and handling uncertainty. A probabilistic extension of a light-weight DL was recently proposed for dealing with certain knowledge occurring in uncertain contexts. In this paper, we continue that line of research by introducing the Bayesian extension of the propositionally closed DL . We present a tableau-based procedure for deciding consistency and adapt it to solve other probabilistic, contextual, and general inferences in this logic. We also show that all these problems remain ExpTime-complete, the same as reasoning in the underlying classical .

Information

Type
Original Article
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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