Methods for monitoring conflicts in inference systems

Details Methods for monitoring conflicts in inference systems Methods for monitoring conflicts in inference systems

2005-09-08

2008-11-04

Starks, Jr., Wilbert L (Department: 2129)

Data processing: artificial intelligence

Knowledge processing system

Knowledge representation and reasoning technique

C706S045000

Reexamination Certificate

active

07447670

ABSTRACT:
The present invention provides a system and a method to keep track of conflicts resulting from combining basic probability assignments (BPAs) without actually performing the normalization operation at every step of combination. This approach can be applied recursively, allowing the system to keep track of the normalization and conflict of the belief combinations inside a large belief inference system without ever performing a normalization operation as long as the computing system precision allows. The present invention can be applied to monitor conflicts within most inference systems, including the Valuation Based System (VBS) framework for Dempster-Shafer (D-S) evidential reasoning.

REFERENCES:
patent: 5602964 (1997-02-01), Barrett
patent: 5963653 (1999-10-01), McNary et al.
patent: 2006/0167784 (2006-07-01), Hoffberg
Glenn Shafer, “A Mathematical Theory of Evidence,” Princeton University Press, 1976.
Prkash Shenoy, “Using Dempster-Shafer's Belief-Function Theory in Expert Systems,” in Advances in the Dempster-Shafer Theory of Evidence, R. Yager, M. Fedrizzi, and J. Kacprzyk, Editors. 1994, John Wiley & Sons, Inc. New York, p. 395-414.

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