Analytic Bayesian Solution of the Two‐Stage Poisson‐Type Problem in Probabilistic Risk Analysis

F. H. Fröhner

Risk Analysis, 1985, vol. 5, issue 3, 217-225

Abstract: The basic purpose of probabilistic risk analysis is to make inferences about the probabilities of various postulated events, with an account of all relevant information such as prior knowledge and operating experience with the specific system under study, as well as experience with other similar systems. Estimation of the failure rate of a Poisson‐type system leads to an especially simple Bayesian solution in closed form if the prior probability implied by the invariance properties of the problem is properly taken into account. This basic simplicity persists if a more realistic prior, representing order of magnitude knowledge of the rate parameter, is employed instead. Moreover, the more realistic prior allows direct incorporation of experience gained from other similar systems, without need to postulate a statistical model for an underlying ensemble. The analytic formalism is applied to actual nuclear reactor data.

Date: 1985
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https://doi.org/10.1111/j.1539-6924.1985.tb00172.x

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Persistent link: https://EconPapers.repec.org/RePEc:wly:riskan:v:5:y:1985:i:3:p:217-225

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