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Interest of the uncertain theories to represent imprecise knowledge in risk assessment


Congress ttile :Lambda-MU 15
Congress town :Lille
Congress date :09/10/2006

Document type > *Congrès/colloque

Keywords >

Research Unit > IRSN/DEI/SESURE/LERCM

Authors > BAUDRIT Cédric, CHOJNACKI Eric, MERCAT-ROMMENS Catherine

Publication Date > 12/10/2006

Summary

This work proposes methods to combine the various modes of représentation of knowledge. Initially, a typology binding the mathematical tools of représentation of knowledge (probabilities, p-boxes, possibilities, function of belief) with the types of knowledge available relating to parametric uncertainty (variability, incomplète probabilistic information, opinion of expert, knowledge of the modal value, knowledge of fractiles) is proposed and various methods of propagation of uncertainties through the models of risk were developed according to the structure of dependency between the parameters.

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