Title
Kappa calculus and evidential strength: A note on Åqvist's logical theory of legal evidence
Abstract
Lennart Åqvist (1992) proposed a logical theory of legal evidence, based on the Bolding-Ekelöf of degrees of evidential strength. This paper reformulates Åqvist's model in terms of the probabilistic version of the kappa calculus. Proving its acceptability in the legal context is beyond the present scope, but the epistemological debate about Bayesian Law isclearly relevant. While the present model is a possible link to that lineof inquiry, we offer some considerations about the broader picture of thepotential of AI & Law in the evidentiary context. Whereas probabilisticreasoning is well-researched in AI, calculations about the threshold ofpersuasion in litigation, whatever their value, are just the tip of theiceberg. The bulk of the modeling desiderata is arguably elsewhere, if one isto ideally make the most of AI's distinctive contribution as envisaged forlegal evidence research.
Year
DOI
Venue
2001
10.1023/A:1017995916308
Artificial Intelligence and Law
Keywords
DocType
Volume
Artificial Intelligence, Present Model, Evidence Research, Computational Linguistic, Logical Theory
Journal
9
Issue
ISSN
Citations 
2-3
1572-8382
9
PageRank 
References 
Authors
0.72
8
2
Name
Order
Citations
PageRank
Solomon Eyal Shimony168778.43
Ephraim Nissan216421.59