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An Importance Sampling Algorithm for the Ising Model with Strong Couplings (1404.5666v7)
Published 22 Apr 2014 in stat.CO, cs.IT, math.IT, and physics.comp-ph
Abstract: We consider the problem of estimating the partition function of the ferromagnetic Ising model in a consistent external magnetic field. The estimation is done via importance sampling in the dual of the Forney factor graph representing the model. Emphasis is on models at low temperature (corresponding to models with strong couplings) and on models with a mixture of strong and weak coupling parameters.