A Hybrid (Stochastic and Fuzzy) Methodology for Safety and Risk Assessment
Probabilistic safety assessments (PSAs) and decision-support risk analyses frequently depend on data that are stochastically variable or subjectively uncertain. Probabilistic calculus approaches have been available to process stochastic variability data. There are now approaches using fuzzy mathematics for processing subjective uncertainty data. The incompatibilities in combining these approaches make hybrid analysis challenging. We have now developed a technique for performing hybrid (stochastic along with subjective) safety and risk analysis.
KeywordsFuzzy Number Fuzzy Function Confidence Factor Probabilistic Risk Assessment Probabilistic Calculus
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