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Documents authored by Prakken, Henry


Document
Representing and Evaluating Legal Narratives with Subscenarios in a Bayesian Network

Authors: Charlotte S. Vlek, Henry Prakken, Silja Renooij, and Bart Verheij

Published in: OASIcs, Volume 32, 2013 Workshop on Computational Models of Narrative


Abstract
In legal cases, stories or scenarios can serve as the context for a crime when reasoning with evidence. In order to develop a scientifically founded technique for evidential reasoning, a method is required for the representation and evaluation of various scenarios in a case. In this paper the probabilistic technique of Bayesian networks is proposed as a method for modeling narrative, and it is shown how this can be used to capture a number of narrative properties. Bayesian networks quantify how the variables in a case interact. Recent research on Bayesian networks applied to legal cases includes the development of a list of legal idioms: recurring substructures in legal Bayesian networks. Scenarios are coherent presentations of a collection of states and events, and qualitative in nature. A method combining the quantitative, probabilistic approach with the narrative approach would strengthen the tools to represent and evaluate scenarios. In a previous paper, the development of a design method for modeling multiple scenarios in a Bayesian network was initiated. The design method includes two narrative idioms: the scenario idiom and the merged scenarios idiom. In this current paper, the method of Vlek, et al. (2013) is extended with a subscenario idiom and it is shown how the method can be used to represent characteristic features of narrative.

Cite as

Charlotte S. Vlek, Henry Prakken, Silja Renooij, and Bart Verheij. Representing and Evaluating Legal Narratives with Subscenarios in a Bayesian Network. In 2013 Workshop on Computational Models of Narrative. Open Access Series in Informatics (OASIcs), Volume 32, pp. 315-332, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)


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@InProceedings{vlek_et_al:OASIcs.CMN.2013.315,
  author =	{Vlek, Charlotte S. and Prakken, Henry and Renooij, Silja and Verheij, Bart},
  title =	{{Representing and Evaluating Legal Narratives with Subscenarios in a Bayesian Network}},
  booktitle =	{2013 Workshop on Computational Models of Narrative},
  pages =	{315--332},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-57-6},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{32},
  editor =	{Finlayson, Mark A. and Fisseni, Bernhard and L\"{o}we, Benedikt and Meister, Jan Christoph},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.CMN.2013.315},
  URN =		{urn:nbn:de:0030-drops-41373},
  doi =		{10.4230/OASIcs.CMN.2013.315},
  annote =	{Keywords: Narrative, Scenarios, Bayesian networks, Legal evidence}
}
Document
Research Challenges for Argumentation

Authors: Jürgen Dix, Simon Parsons, Henry Prakken, and Guillermo Simari

Published in: Dagstuhl Seminar Proceedings, Volume 8042, Perspectives Workshop: Theory and Practice of Argumentation Systems (2008)


Abstract
The first articles on argumentation in computer science appeared circa 20 years ago. Since then we have seen great advances, establishing a solid theoretical basis, a broad canvas of applications, and, most recently, some realistic implementations. The field has gone from infancy to maturity, and the initial questions that researchers posed – "how do we do this?", "what is it good for?" and "how do we implement it – are mostly answered.

Cite as

Jürgen Dix, Simon Parsons, Henry Prakken, and Guillermo Simari. Research Challenges for Argumentation. In Perspectives Workshop: Theory and Practice of Argumentation Systems. Dagstuhl Seminar Proceedings, Volume 8042, pp. 1-13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)


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@InProceedings{dix_et_al:DagSemProc.08042.1,
  author =	{Dix, J\"{u}rgen and Parsons, Simon and Prakken, Henry and Simari, Guillermo},
  title =	{{Research Challenges for Argumentation}},
  booktitle =	{Perspectives Workshop: Theory and Practice of Argumentation Systems},
  pages =	{1--13},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8042},
  editor =	{J\"{u}rgen Dix and Simon Parsons and Henry Prakken and Guillermo Simari},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08042.1},
  URN =		{urn:nbn:de:0030-drops-15770},
  doi =		{10.4230/DagSemProc.08042.1},
  annote =	{Keywords: Argumentation, reasoning, agent systems}
}
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