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Bayesian model comparison with un-normalised likelihood
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Everitt, R. G., Johansen, Adam M., Rowing, E. and Evdemon-Hogan, M. (2017) Bayesian model comparison with un-normalised likelihood. Statistics and Computing, 27 (2). pp. 403-422. doi:10.1007/s11222-016-9629-2
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WRAP_Johansen_0771064-st-210116-z_model_choice_sc_revised2.pdf - Accepted Version - Requires a PDF viewer. Download (982Kb) | Preview |
Official URL: http://dx.doi.org/10.1007/s11222-016-9629-2
Abstract
Models for which the likelihood function can be evaluated only up to a parameter-dependent unknown normalizing constant, such as Markov random field models, are used widely in computer science, statistical physics, spatial statistics, and network analysis. However, Bayesian analysis of these models using standard Monte Carlo methods is not possible due to the intractability of their likelihood functions. Several methods that permit exact, or close to exact, simulation from the posterior distribution have recently been developed. However, estimating the evidence and Bayes’ factors for these models remains challenging in general. This paper describes new random weight importance sampling and sequential Monte Carlo methods for estimating BFs that use simulation to circumvent the evaluation of the intractable likelihood, and compares them to existing methods. In some cases we observe an advantage in the use of biased weight estimates. An initial investigation into the theoretical and empirical properties of this class of methods is presented. Some support for the use of biased estimates is presented, but we advocate caution in the use of such estimates.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QA Mathematics Q Science > QC Physics Q Science > QP Physiology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Statistics | ||||||||
| Library of Congress Subject Headings (LCSH): | Bayesian statistical decision theory, Sampling (Statistics), Markov random fields , Movement sequences, Monte Carlo method | ||||||||
| Journal or Publication Title: | Statistics and Computing | ||||||||
| Publisher: | Springer | ||||||||
| ISSN: | 0960-3174 | ||||||||
| Official Date: | March 2017 | ||||||||
| Dates: |
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| Volume: | 27 | ||||||||
| Number: | 2 | ||||||||
| Number of Pages: | 20 | ||||||||
| Page Range: | pp. 403-422 | ||||||||
| DOI: | 10.1007/s11222-016-9629-2 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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