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Erschienen in: Artificial Intelligence and Law 2/2009

01.06.2009

Did he jump or was he pushed?

Abductive practical reasoning

verfasst von: Floris Bex, Trevor Bench-Capon, Katie Atkinson

Erschienen in: Artificial Intelligence and Law | Ausgabe 2/2009

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Abstract

In this paper, we present a particular role for abductive reasoning in law by applying it in the context of an argumentation scheme for practical reasoning. We present a particular scheme, based on an established scheme for practical reasoning, that can be used to reason abductively about how an agent might have acted to reach a particular scenario, and the motivations for doing so. Plausibility here depends on a satisfactory explanation of why this particular agent followed these motivations in the particular situation. The scheme is given a formal grounding in terms of action-based alternating transition systems and we illustrate the approach with a running legal example.

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Fußnoten
1
When speaking of persons we might call such a preference ‘character’ and may attempt to explain what kind of character the person has, cf. Walton (2007).
 
2
We use ‘non-abductive’ instead of ‘deductive’ because deductive implies that normal practical reasoning is not presumptive/defeasible, which, of course, it is.
 
3
Determining the audience given a VAF and an admissible set is computable in polynomial time (Bench-Copan 2007), so there are no complexity issues, even in large examples.
 
4
The point that crimes invariably involve an abnormal or deviant motivation is made in Walton and Schafer (2006), which we will discuss further in Sect. 5.
 
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Metadaten
Titel
Did he jump or was he pushed?
Abductive practical reasoning
verfasst von
Floris Bex
Trevor Bench-Capon
Katie Atkinson
Publikationsdatum
01.06.2009
Verlag
Springer Netherlands
Erschienen in
Artificial Intelligence and Law / Ausgabe 2/2009
Print ISSN: 0924-8463
Elektronische ISSN: 1572-8382
DOI
https://doi.org/10.1007/s10506-009-9074-z

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