Search Results for author: Gian Luca Pozzato

Found 6 papers, 1 papers with code

Reasoning about Typicality and Probabilities in Preferential Description Logics

no code implementations20 Apr 2020 Laura Giordano, Valentina Gliozzi, Antonio Lieto, Nicola Olivetti, Gian Luca Pozzato

In this work we describe preferential Description Logics of typicality, a nonmonotonic extension of standard Description Logics by means of a typicality operator T allowing to extend a knowledge base with inclusions of the form T(C) v D, whose intuitive meaning is that normally/typically Cs are also Ds.

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A Description Logic Framework for Commonsense Conceptual Combination Integrating Typicality, Probabilities and Cognitive Heuristics

no code implementations6 Nov 2018 Antonio Lieto, Gian Luca Pozzato

The proposed logic relies on the logic of typicality ALC TR, whose semantics is based on the notion of rational closure, as well as on the distributed semantics of probabilistic Description Logics, and is equipped with a cognitive heuristic used by humans for concept composition.

Rational Closure in SHIQ

no code implementations8 Jun 2014 Laura Giordano, Valentina Gliozzi, Nicola Olivetti, Gian Luca Pozzato

We define a notion of rational closure for the logic SHIQ, which does not enjoys the finite model property, building on the notion of rational closure introduced by Lehmann and Magidor in [23].

On Rational Closure in Description Logics of Typicality

no code implementations5 May 2013 Laura Giordano, Valentina Gliozzi, Nicola Olivetti, Gian Luca Pozzato

We show that this semantics captures exactly a notion of rational closure which is a natural extension to Description Logics of Lehmann and Magidor's original one.

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