A Temporal Ontology for Reasoning about Actions
Keywords:
Artificial Intelligence, Description Logic, Knowledge Representation, Reasoning on the Actions, Spatio-Temporal Logic, Temporal Logic
Abstract
In this paper our work is devoted to systematic study of actions theories by using a logical formalism based on a first order language increased by operators whose main is to facilitate the representation of causal and temporal relationships between actions and their effects as well as causal and temporal relationships between actions and events In Allen and Mc-Dermott formalisms we notice that notions of past present and future do not appear in the predicate Ecause How to affirm that effects don t precede causes To use the concept of temporality without limiting themselves to intervals we enrich our language by an operator defined on time-elements Our formalism avoids an ambiguity like effect precedes cause The originality of this work lies in proposal for a formalism based on equivalence classes We also defined an operator who allows us to represent the evolutions of the universe for various futures and pasts These operators allow to represent the types of reasoning which are prediction explanation and planning we propose a new ontology for causal and temporal representation of actions events The ontology used in our formalism consists of facts events process causality action and planning
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Published
2012-05-15
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Copyright (c) 2012 Authors and Global Journals Private Limited
This work is licensed under a Creative Commons Attribution 4.0 International License.