Title :
On the behavior of Dempster´s rule of combination and the foundations of Dempster-Shafer Theory
Author :
Tchamova, Albena ; Dezert, Jean
Author_Institution :
Inst. for Inf. & Commun. Technol., Sofia, Bulgaria
Abstract :
On the base of simple emblematic example we analyze and explain the inconsistent and inadequate behavior of Dempster-Shafer´s rule of combination as a valid method to combine sources of evidences. We identify the cause and the effect of the dictatorial power behavior of this rule and of its impossibility to manage the conflicts between the sources. For a comparison purpose, we present the respective solution obtained by the more efficient PCR5 fusion rule proposed originally in Dezert-Smarandache Theory framework. Finally, we identify and prove the inherent contradiction of Dempster-Shafer Theory foundations.
Keywords :
inference mechanisms; Dempster-Shafer combination rule; Dempster-Shafer theory foundations; Dezert-Smarandache theory framework; PCR5 fusion rule; Proportional Conflict Redistribution rule no.5; conflict management; dictatorial power behavior; evidence sources; logical contradiction; Bayesian methods; Cognition; Electronic mail; Medical diagnostic imaging; Reliability; Security; Upper bound; Belief functions; DSmT; Dempster-Shafer Theory; PCR5; contradiction;
Conference_Titel :
Intelligent Systems (IS), 2012 6th IEEE International Conference
Conference_Location :
Sofia
Print_ISBN :
978-1-4673-2276-8
DOI :
10.1109/IS.2012.6335122