On the role of prototypes in appellate legal argument (abstract)

Although most of the work on Artificial Intelligence and Law today is oriented towards the development of pract ical systems, there is a small group of researchers who are primarily interested in theoretical questions: How much of legal reasoning can be reduced to reasoning wit h rules? Is this rule-based component significant, or trivial? How is it possible to rewon with cases at all? Are legal concepts just like ordinary common sense concepts, or do they have special characteristics? Is it possible to develop a computational theory of legal argument? The researchers who have investigated these questions include: Anne Gardner [1 I]; Edwina Rissland and her students, Kevin Ashley [38, 1] and David Skalak [39, 41]; Michael Dyer and his student, Seth Goldman [12]; Karl Branting [5]; and Keith Bellairs [2], In addition, researchers such as Richard Susskind [45] and J .C. Smith [43], who have primarily built practical systems, have also been deeply concerned with the jurisprudential foundations of the field.

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