Prior Elicitation, Assessment and Inference with a Dirichlet Prior

Methods are developed for eliciting a Dirichlet prior based upon stating bounds on the individual probabilities that hold with high prior probability. This approach to selecting a prior is applied to a contingency table problem where it is demonstrated how to assess the prior with respect to the bia...

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Main Authors: Michael Evans, Irwin Guttman, Peiying Li
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/19/10/564
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spelling doaj-05af1699d5204c51afa8ca403ae68ece2020-11-24T21:51:19ZengMDPI AGEntropy1099-43002017-10-01191056410.3390/e19100564e19100564Prior Elicitation, Assessment and Inference with a Dirichlet PriorMichael Evans0Irwin Guttman1Peiying Li2Department of Statistical Sciences, University of Toronto, Toronto, ON M5S 3G3, CanadaDepartment of Statistical Sciences, University of Toronto, Toronto, ON M5S 3G3, CanadaDepartment of Statistical Sciences, University of Toronto, Toronto, ON M5S 3G3, CanadaMethods are developed for eliciting a Dirichlet prior based upon stating bounds on the individual probabilities that hold with high prior probability. This approach to selecting a prior is applied to a contingency table problem where it is demonstrated how to assess the prior with respect to the bias it induces as well as how to check for prior-data conflict. It is shown that the assessment of a hypothesis via relative belief can easily take into account what it means for the falsity of the hypothesis to correspond to a difference of practical importance and provide evidence in favor of a hypothesis.https://www.mdpi.com/1099-4300/19/10/564elicitationbiasprior-data conflictrelative belief inferencesmultinomial distributionDirichlet prior
collection DOAJ
language English
format Article
sources DOAJ
author Michael Evans
Irwin Guttman
Peiying Li
spellingShingle Michael Evans
Irwin Guttman
Peiying Li
Prior Elicitation, Assessment and Inference with a Dirichlet Prior
Entropy
elicitation
bias
prior-data conflict
relative belief inferences
multinomial distribution
Dirichlet prior
author_facet Michael Evans
Irwin Guttman
Peiying Li
author_sort Michael Evans
title Prior Elicitation, Assessment and Inference with a Dirichlet Prior
title_short Prior Elicitation, Assessment and Inference with a Dirichlet Prior
title_full Prior Elicitation, Assessment and Inference with a Dirichlet Prior
title_fullStr Prior Elicitation, Assessment and Inference with a Dirichlet Prior
title_full_unstemmed Prior Elicitation, Assessment and Inference with a Dirichlet Prior
title_sort prior elicitation, assessment and inference with a dirichlet prior
publisher MDPI AG
series Entropy
issn 1099-4300
publishDate 2017-10-01
description Methods are developed for eliciting a Dirichlet prior based upon stating bounds on the individual probabilities that hold with high prior probability. This approach to selecting a prior is applied to a contingency table problem where it is demonstrated how to assess the prior with respect to the bias it induces as well as how to check for prior-data conflict. It is shown that the assessment of a hypothesis via relative belief can easily take into account what it means for the falsity of the hypothesis to correspond to a difference of practical importance and provide evidence in favor of a hypothesis.
topic elicitation
bias
prior-data conflict
relative belief inferences
multinomial distribution
Dirichlet prior
url https://www.mdpi.com/1099-4300/19/10/564
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AT irwinguttman priorelicitationassessmentandinferencewithadirichletprior
AT peiyingli priorelicitationassessmentandinferencewithadirichletprior
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