Exploiting Causality in Constructing Bayesian Network Graphs from Legal Arguments

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Abstract

In this paper, we propose a structured approach for transforming legal arguments to a Bayesian network (BN) graph. Our approach automatically constructs a fully specified BN graph by exploiting causality information present in legal arguments. Moreover, we demonstrate that causality information in addition provides for constraining some of the probabilities involved. We show that for undercutting attacks it is necessary to distinguish between causal and evidential attacked inferences, which extends on a previously proposed solution to modelling undercutting attacks in BNs. We illustrate our approach by applying it to part of an actual legal case, namely the Sacco and Vanzetti legal case.
Original languageEnglish
Title of host publicationLegal Knowledge and Information Systems
Subtitle of host publicationJURIX 2018: The Thirty-first Annual Conference
EditorsMonica Palmirani
Place of PublicationAmsterdam
PublisherIOS Press
Pages151-160
Number of pages10
ISBN (Electronic)978-1-61499-935-5
ISBN (Print)978-1-61499-934-8
DOIs
Publication statusPublished - 2018

Publication series

NameFrontiers in Artificial Intelligence and Applications
PublisherIOS Press
Volume313

Keywords

  • Bayesian networks
  • legal reasoning
  • argumentation
  • causality

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