Istituto di Scienza e Tecnologie dell'Informazione     
Straccia U. Description logics over lattices. In: International Journal of Uncertainty Fuzziness and Knowledge-Based Systems, vol. 14 (1) pp. 1 - 16. World Scientific Publishing Co, 2006.
It is generally accepted that knowledge based systems would be smarter if they could manage uncertainty and/or imprecision. In this paper we extend Description Logics, well-known logics for managing structured knowledge, allowing to express that a sentence is not just true or false, but true to some degree, which is taken from a certainty lattice.
Subject Description logics
I.2.4 Knowledge Representation Formalisms and Methods. Representation

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