Istituto di Scienza e Tecnologie dell'Informazione     
Straccia U. Uncertainty in Description Logics: a Lattice-based Approach. In: IPMU-04 - 10th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (Perugia, Italy, 4-9 July 2004). Proceedings, 2004.
It is generally accepted that knowledge based systems would be smarter if they can manage uncertainty. In this paper we extend Description Logics, well-known logics for managing structured knowledge, towards the management of uncertainty. We allow to express that a sentence is not just true or false, but certain to some degree, which is taken from a certainty lattice.
Subject Description Logics
F.4.1 Mathematical Logic and Formal Languages. Modal logic
I.2.4 Knowledge Representation Formalisms and Methods. Representation

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