Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - An efficient Markov chain Monte Carlo method for distributions with intractable normalising constants.
AU - Pettitt, Anthony
AU - Berthelsen, K.
AU - Moller, J.
AU - Reeves, R.
N1 - RAE_import_type : Journal article RAE_uoa_type : Statistics and Operational Research
PY - 2006/6/1
Y1 - 2006/6/1
N2 - Maximum likelihood parameter estimation and sampling from Bayesian posterior distributions are problematic when the probability density for the parameter of interest involves an intractable normalising constant which is also a function of that parameter. In this paper, an auxiliary variable method is presented which requires only that independent samples can be drawn from the unnormalised density at any particular parameter value. The proposal distribution is constructed so that the normalising constant cancels from the Metropolis-Hastings ratio. The method is illustrated by producing posterior samples for parameters of the Ising model given a particular lattice realisation.
AB - Maximum likelihood parameter estimation and sampling from Bayesian posterior distributions are problematic when the probability density for the parameter of interest involves an intractable normalising constant which is also a function of that parameter. In this paper, an auxiliary variable method is presented which requires only that independent samples can be drawn from the unnormalised density at any particular parameter value. The proposal distribution is constructed so that the normalising constant cancels from the Metropolis-Hastings ratio. The method is illustrated by producing posterior samples for parameters of the Ising model given a particular lattice realisation.
KW - Auxiliary variable method
KW - Ising model
KW - Markov chain Monte Carlo
KW - Metropolis-Hastings algorithm
KW - Normalising constant
KW - Partition function
U2 - 10.1093/biomet/93.2.451
DO - 10.1093/biomet/93.2.451
M3 - Journal article
VL - 93
SP - 451
EP - 458
JO - Biometrika
JF - Biometrika
SN - 1464-3510
IS - 2
ER -