Abstract Details
Activity Number:
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236
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Type:
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Contributed
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Date/Time:
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Monday, August 4, 2014 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Bayesian Statistical Science
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Abstract #311414
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View Presentation
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Title:
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A Prior-Robust Posterior Distribution for Empirical Bayes Analysis of a Large Number of Parallel Effects
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Author(s):
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Jiangang Liao*+
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Companies:
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Keywords:
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large scale data
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Abstract:
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In Liao, McMurry and Berg (2013, Biostatistics) we proposed a prior robust emprical Bayes inference for large scale data by conditioning on rank of the observed data instead of the data itself. In this talk, we introduce a new prior robust Bayes method by eliminating the influence of a mis-specified prior on part of the posterior distribution. The proposed method shares one unique chracteristic with the rank-conditioned method: it can significantly improve robustness against a mis-specified prior with little or no sacrifice of inferntial efficiency when the prior is correctly specified. The new method, however, is more generally applicable.
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Authors who are presenting talks have a * after their name.
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