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Qualitative frameworks for decision support: lessons from medicine

Published online by Cambridge University Press:  07 July 2009

John Fox
Affiliation:
Imperial Cancer Research Fund, Lincoln's Inn Fields, London WC2A 3PX, United Kingdom
Paul Krause
Affiliation:
Imperial Cancer Research Fund, Lincoln's Inn Fields, London WC2A 3PX, United Kingdom

Abstract

Some weaknesses of current decision support technologies are discussed. Numerical methods have strong theoretical foundations but are representationally weak, and only deal with a small part of the decision process. Knowledge-based systems offer greater flexibility, but have not been accompanied by a clear decision theory. Theoretical development of symbolic decision procedures is advocated, an approach to the design of decision support systems based on first-order logic is presented, and work on this approach is reviewed. A central proposal is an extended form of inference called argumentation; reasoning qualitatively for and against decision options from generalized domain theories. Argumentation captures a natural and familiar form of reasoning, and contributes to the robustness, flexibility and intelligibility of problem solving, while having a clear theoretical basis. Argumentation was developed initially for medical applications though it may have much wider applicability.

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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