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On the Bernstein-von Mises theorem for the Dirichlet process (2008.01130v2)
Published 3 Aug 2020 in math.ST, math.PR, and stat.TH
Abstract: We establish that Laplace transforms of the posterior Dirichlet process converge to those of the limiting Brownian bridge process in a neighbourhood about zero, uniformly over Glivenko-Cantelli function classes. For real-valued random variables and functions of bounded variation, we strengthen this result to hold for all real numbers. This last result is proved via an explicit strong approximation coupling inequality.
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