A Trajectory Approach to Causality |
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Authors: | Jauregui Victor Foo Norman Pagnucco Maurice |
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Institution: | (1) Knowledge Systems Group School of Computer Science and Engineering, University of New South Wales, NSW, 2052, Australia;(2) Computational Reasoning Group Department of Computing Division of ICS, Macquarie University, NSW, 2109, Australia |
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Abstract: | In this paper we propose a new approach to address the ramification problem in common-sense reasoning about action and change. We contrast the methods of McCain and Turner, Thielscher and Sandewall and, based on some of the limitations they encounter, we introduce a trajectory-based approach which keeps a history of the states through which a system evolves to characterise its dynamical state. We furnish an underlying state-transition semantics and a logic that admits an expressive, dynamical account of some typical scenarios which encounter modelling difficulties in the other approaches mentioned. |
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Keywords: | Commonsense Reasoning Reasoning about Action and Change Ramification Problem Causality Trajectory Semantics |
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