The Pathfinder Project: Update 1991

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KSL-91-44 +  redirect page

The Pathfinder Project: Update 1991 +  Has identifier

The Pathfinder Project: Update 1991 +  Ksl tr id

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The Pathfinder Project: Update 1991

Bibtype  techreport

Has publishing details  July,1991

Has title  The Pathfinder Project: Update 1991

Has where published  KSL-91-44

Has year  1991

Title  The Pathfinder Project: Update 1991

Year  1991

Abstract  We describe key issues and achievements on We describe key issues and achievements on the Pathfinder expert-system project. Pathfinder research has extended over 8 years at the University of Southern California and at Stanford University. Our investigation of automated reasoning has spanned several paradigms for representing and reasoning with expert medical knowledge. The Pathfinder team has concentrated on the construction of normative expert systems, which are expert systems based on the principles of decision theory. Within the normative paradigm, we have developed useful techniques for acquiring, representing, manipulating, and explaining complex medical knowledge. A large component of such knowledge is made available only through careful assessment of subjective probabilistic relationships. Although the bulk of Pathfinder research has been carried out within the domain of lymph-node pathology, the insights and techniques have relevance to a wide variety of complex biomedical domains. We introduce the project, describe the significance of normative reasoning in medicine, and review theoretical and empirical Pathfinder developments. We describe the techniques for constructing and managing a large probabilistic knowledge base, the use of a normative hypotheticodeductive architecture, the application of alternative information-acquisition strategies, and the explanation of probabilistic inference. he explanation of probabilistic inference.

Author  David Heckerman and Eric Horvitz and Bharat N. Nathwani +

Has author  David Heckerman and Eric Horvitz and Bharat N. Nathwani +

Has identifier  The Pathfinder Project: Update 1991 +

Institution  Knowledge Systems, AI Laboratory +

Ksl tr id  The Pathfinder Project: Update 1991 +

Month  July +

Number  The Pathfinder Project: Update 1991 +

Process note  NO +

Categories  KSL Technical Report +, Publication +, Technical Report +

 

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