The Bernstein-von Mises theorem for non-regular generalised linear inverse problems

Natalia Bochkina, Peter J Green

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

We consider a broad class of nonlinear statistical inverse problems from a Bayesian perspective. This provides a flexible and interpretable framework for their analysis, but it is important to understand the relationship between the chosen Bayesian model and the resulting solution, especially in the ill-posed case where in the absence of prior information the solution is not unique.
Following earlier work about consistency of the posterior distribution of the reconstruction, we obtain approximations to the posterior distribution in the form of a Bernstein--von Mises theorem for nonregular Bayesian models. Emission tomography is taken as a canonical example for study, but our results hold for a wider class of generalised linear models with constraints.
Original languageEnglish
JournalAnnals of Statistics
Publication statusIn preparation - 2013

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