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Usage of relative uncertainty measures

This note considers an alternate probabilistic presentation of uncertainty of complex systems and subsystems of any level. The entropy defined in information theory is used for the uncertainty measure. The relative measure of uncertainty brings into the relation the actual entropy to the maximal attainable entropy of a considered system or subsystem. The relative uncertainty facilitates the interpretations of the uncertainty with respect to systems consisting always of same number of events. Such an approach is hopefully more user-friendly way for representation of uncertainties in engineering systems. Numerical examples are attached.

probability; engineering; system of events; reliability; uncertainty; entropy; information theory

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