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Sparse Interaction Neighborhood Selection for Markov Random Fields via Reversible Jump and Pseudoposteriors
May 1, 2024, 4:46 a.m. | Victor Freguglia, Nancy Lopes Garcia
stat.ML updates on arXiv.org arxiv.org
Abstract: We consider the problem of estimating the interacting neighborhood of a Markov Random Field model with finite support and homogeneous pairwise interactions based on relative positions of a two-dimensional lattice. Using a Bayesian framework, we propose a Reversible Jump Monte Carlo Markov Chain algorithm that jumps across subsets of a maximal range neighborhood, allowing us to perform model selection based on a marginal pseudoposterior distribution of models. To show the strength of our proposed methodology …
abstract arxiv bayesian fields framework interactions lattice markov random stat.co stat.ml support type via
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