About epistemic negation and world views in Epistemic Logic Programs

July 23, 2019 Β· Declared Dead Β· πŸ› Theory and Practice of Logic Programming

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Authors Stefania Costantini arXiv ID 1907.09867 Category cs.AI: Artificial Intelligence Cross-listed cs.LO Citations 10 Venue Theory and Practice of Logic Programming Last Checked 4 months ago
Abstract
In this paper we consider Epistemic Logic Programs, which extend Answer Set Programming (ASP) with "epistemic operators" and "epistemic negation", and a recent approach to the semantics of such programs in terms of World Views. We propose some observations on the existence and number of world views. We show how to exploit an extended ASP semantics in order to: (i) provide a characterization of world views, different from existing ones; (ii) query world views and query the whole set of world views.
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