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2015 | OriginalPaper | Buchkapitel

Abduction in PDT Logic

verfasst von : Karsten Martiny, Ralf Möller

Erschienen in: AI 2015: Advances in Artificial Intelligence

Verlag: Springer International Publishing

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Abstract

Probabilistic Doxastic Temporal (PDT) Logic is a formalism to represent and reason about belief evolutions in multi–agent systems. In this work we develop a theory of abduction for PDT Logic. This gives means to novel reasoning capabilities by determining which epistemic actions can be taken in order to induce an evolution of probabilistic beliefs into a desired goal state. Next to providing a formal account of abduction in PDT Logic, we identify pruning strategies for the solution space, and give a sound and complete algorithm to find minimal solutions to the abduction problem.

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Fußnoten
1
The introduction of PDT Logic in [12] enables the expression of a variety of temporal relationships through an axiomatic definition. Due to space constraints, we present an adapted simplified version that suffices for the purpose of this work.
 
2
To simplify the presentation, we assume that (even for nested beliefs) the goal formula \(G\) involves only a single time point \({t_g}\). The proposed methods are also applicable to goal formulae involving multiple time points, but this will significantly increase the complexity of presentation.
 
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Metadaten
Titel
Abduction in PDT Logic
verfasst von
Karsten Martiny
Ralf Möller
Copyright-Jahr
2015
DOI
https://doi.org/10.1007/978-3-319-26350-2_35