Search results for "convergence diagnostic"

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On implementation of the Gibbs sampler for estimating the accuracy of multiple diagnostic tests

2010

Implementation of the Gibbs sampler for estimating the accuracy of multiple binary diagnostic tests in one population has been investigated. This method, proposed by Joseph, Gyorkos and Coupal, makes use of a Bayesian approach and is used in the absence of a gold standard to estimate the prevalence, the sensitivity and specificity of medical diagnostic tests. The expressions that allow this method to be implemented for an arbitrary number of tests are given. By using the convergence diagnostics procedure of Raftery and Lewis, the relation between the number of iterations of Gibbs sampling and the precision of the estimated quantiles of the posterior distributions is derived. An example conc…

Statistics and Probabilityeducation.field_of_studygastroesophageal reflux diseaseBayesian probabilityPopulationGold standard (test)Settore FIS/03 - Fisica Della MateriaGibbs sampler; Bayesian analysis; convergence diagnostics; diagnostic tests; gastroesophageal reflux diseaseSettore MED/01 - Statistica MedicaData setsymbols.namesakediagnostic testGibbs samplerConvergence (routing)Statisticsconvergence diagnosticsymbolsSensitivity (control systems)Statistics Probability and UncertaintyeducationAlgorithmBayesian analysiQuantileMathematicsGibbs samplingJournal of Applied Statistics
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