Bayesian inference for Gibbs random fields using composite likelihoods

N. Friel

Published 2012 in Online World Conference on Soft Computing in Industrial Applications

ABSTRACT

Gibbs random fields play an important role in statistics, for example the autologistic model is commonly used to model the spatial distribution of binary variables defined on a lattice. However they are complicated to work with due to an intractability of the likelihood function. It is therefore natural to consider tractable approximations to the likelihood function. Composite likelihoods offer a principled approach to constructing such approximation. The contribution of this paper is to examine the performance of a collection of composite likelihood approximations in the context of Bayesian inference.

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REFERENCES

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