Particle Gibbs split-merge sampling for Bayesian inference in mixture models

This paper presents an original Markov chain Monte Carlo method to sample from the posterior distribution of conjugate mixture models. This algorithm relies on a flexible split-merge procedure built using the particle Gibbs sampler introduced in Andrieu et al. (2009, 2010). The resulting so-called P...

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Main Authors: Bouchard-Côté, A, Doucet, A, Roth, A
Format: Journal article
Published: Journal of Machine Learning Research 2017
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author Bouchard-Côté, A
Doucet, A
Roth, A
author_facet Bouchard-Côté, A
Doucet, A
Roth, A
author_sort Bouchard-Côté, A
collection OXFORD
description This paper presents an original Markov chain Monte Carlo method to sample from the posterior distribution of conjugate mixture models. This algorithm relies on a flexible split-merge procedure built using the particle Gibbs sampler introduced in Andrieu et al. (2009, 2010). The resulting so-called Particle Gibbs Split-Merge sampler does not require the computation of a complex acceptance ratio and can be implemented using existing sequential Monte Carlo libraries. We investigate its performance experimentally on synthetic problems as well as on geolocation data. Our results show that for a given computational budget, the Particle Gibbs Split-Merge sampler empirically outperforms existing split merge methods. The code and instructions allowing to reproduce the experiments is available at https://github.com/aroth85/pgsm.
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spelling oxford-uuid:64f62e09-fe01-4328-833a-a372e2ca22682022-03-26T18:22:27ZParticle Gibbs split-merge sampling for Bayesian inference in mixture modelsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:64f62e09-fe01-4328-833a-a372e2ca2268Symplectic Elements at OxfordJournal of Machine Learning Research2017Bouchard-Côté, ADoucet, ARoth, AThis paper presents an original Markov chain Monte Carlo method to sample from the posterior distribution of conjugate mixture models. This algorithm relies on a flexible split-merge procedure built using the particle Gibbs sampler introduced in Andrieu et al. (2009, 2010). The resulting so-called Particle Gibbs Split-Merge sampler does not require the computation of a complex acceptance ratio and can be implemented using existing sequential Monte Carlo libraries. We investigate its performance experimentally on synthetic problems as well as on geolocation data. Our results show that for a given computational budget, the Particle Gibbs Split-Merge sampler empirically outperforms existing split merge methods. The code and instructions allowing to reproduce the experiments is available at https://github.com/aroth85/pgsm.
spellingShingle Bouchard-Côté, A
Doucet, A
Roth, A
Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title_full Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title_fullStr Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title_full_unstemmed Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title_short Particle Gibbs split-merge sampling for Bayesian inference in mixture models
title_sort particle gibbs split merge sampling for bayesian inference in mixture models
work_keys_str_mv AT bouchardcotea particlegibbssplitmergesamplingforbayesianinferenceinmixturemodels
AT douceta particlegibbssplitmergesamplingforbayesianinferenceinmixturemodels
AT rotha particlegibbssplitmergesamplingforbayesianinferenceinmixturemodels