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Lookup NU author(s): Professor Hongsheng DaiORCiD, Dr Murray Pollock
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2023 Blackwell Publishing Ltd. All rights reserved.There has been considerable interest in addressing the problem of unifying distributed analyses into a single coherent inference, which arises in big-data settings, when working under privacy constraints, and in Bayesian model choice. Most existing approaches relied upon approximations of the distributed analyses, which have significant shortcomings the quality of the inference can degrade rapidly with the number of analyses being unified, and can be substantially biased when unifying analyses that do not concur. In contrast, recent Monte Carlo fusion approach is exact and based on rejection sampling. In this paper, we introduce a practical Bayesian fusion approach by embedding the Monte Carlo fusion framework within a sequential Monte Carlo algorithm. We demonstrate theoretically and empirically that Bayesian fusion is more robust than existing methods.
Author(s): Dai H, Pollock M, Roberts GO
Publication type: Article
Publication status: Published
Journal: Journal of the Royal Statistical Society. Series B: Statistical Methodology
Year: 2023
Volume: 85
Issue: 1
Pages: 84-107
Print publication date: 01/02/2023
Online publication date: 30/01/2023
Acceptance date: 26/11/2022
Date deposited: 20/03/2023
ISSN (print): 1369-7412
ISSN (electronic): 1467-9868
Publisher: Oxford University Press
URL: https://doi.org/10.1093/jrsssb/qkac007
DOI: 10.1093/jrsssb/qkac007
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