Heuristic Abstraction in the Decision-Theoretic Pathfinder System

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Citation: Eric Horvitz and David Heckerman and Keung-Chi Ng and Bharat N. Nathwani. (1989) Heuristic Abstraction in the Decision-Theoretic Pathfinder System. In KSL-89-24, 1989.

Publication techreport ( Edit )
type Technical Report
bibtype techreport
Bibtex basics
author Eric Horvitz and David Heckerman and Keung-Chi Ng and Bharat N. Nathwani
title Heuristic Abstraction in the Decision-Theoretic Pathfinder System
number KSL-89-24
institution Knowledge Systems, AI Laboratory
address Washington D. C.
year 1989
Bibtex more
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abstract A criticism of diagnostic systems, which are based on the formal foundations of probability and utility, is that their reasoning strategies and recommendations are inflexible and unnatural. We have developed a facility that increases the flexibility of normative reasoning systems by providing multiple human-oriented perspectives on diagnostic problem solving. The method endows a system with the ability to reason about arbitrary classes of diagnostic entities and to control the level of abstraction at which inference occurs. The techniques have been integrated into Pathfinder, an expert system that performs hematopathology diagnosis. We explain the background and approach that we have taken, and describe how we use the techniques in Pathfinder to modulate information- and decision-theoretic reasoning with strategic scripts that are familiar to physicians.

KSL Technical Report ID: KSL-89-24
Facts about Heuristic Abstraction in the Decision-Theoretic Pathfinder SystemRDF feed
Abstract A criticism of diagnostic systems, which a … A criticism of diagnostic systems, which are based on the formal foundations of probability and utility, is that their reasoning strategies and recommendations are inflexible and unnatural. We have developed a facility that increases the flexibility of normative reasoning systems by providing multiple human-oriented perspectives on diagnostic problem solving. The method endows a system with the ability to reason about arbitrary classes of diagnostic entities and to control the level of abstraction at which inference occurs. The techniques have been integrated into Pathfinder, an expert system that performs hematopathology diagnosis. We explain the background and approach that we have taken, and describe how we use the techniques in Pathfinder to modulate information- and decision-theoretic reasoning with strategic scripts that are familiar to physicians. c scripts that are familiar to physicians.
Address Washington D. C.  +
Author Eric Horvitz and David Heckerman and Keung-Chi Ng and Bharat N. Nathwani  +
Bibtype techreport  +
Has author Eric Horvitz and David Heckerman and Keung-Chi Ng and Bharat N. Nathwani  +
Has identifier KSL-89-24  +
Has publishing details 1989  +
Has title Heuristic Abstraction in the Decision-Theoretic Pathfinder System  +
Has where published KSL-89-24  +
Has year 1989  +
Institution Knowledge Systems, AI Laboratory  +
Ksl tr id KSL-89-24  +
Number KSL-89-24  +
Process note YES  +
Title Heuristic Abstraction in the Decision-Theoretic Pathfinder System  +
Year 1989  +
Retrieved from "http://tw.rpi.edu/wiki/Heuristic_Abstraction_in_the_Decision-Theoretic_Pathfinder_System"
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