Roberts, G. O. (1997) *Optimal metropolis algorithms for product measures on the vertices of a hypercube.* Stochastics, 62 (3 & 4). pp. 275-284. ISSN 1744-2516

## Abstract

Optimal scaling problems for high dimensional Metropolis-Hastings algorithms can often be solved by means of diffusion approximation results. These solutions are particularly appealing since they can often be characterised in terms of a simple, observable property of the Markov chain sample path, namely the overall proportion of accepted iterations for the chain. For discrete state space problems, analogous scaling problems can be defined, though due to discrete effects, a simple characterisation of the asymptotically optimal solution is not available. This paper considers the simplest possible (and most discrete) example of such a problem, demonstrating that, at least for sufficiently 'smooth' distributions in high dimensional problems,the Metropolis algorithm behaves similarly to its counterpart on the continuous state space

Item Type: | Article |
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Journal or Publication Title: | Stochastics |

Uncontrolled Keywords: | Metropolis-Hastings algorithm ; scaling problem ; weak convergence ; Mathematics Subject Classification 1991 ; Primary ; 60F05 ; Secondary ; 65U05 |

Subjects: | Q Science > QA Mathematics |

Departments: | Faculty of Science and Technology > Lancaster Environment Centre |

ID Code: | 19469 |

Deposited By: | ep_ss_importer |

Deposited On: | 18 Nov 2008 09:13 |

Refereed?: | Yes |

Published?: | Published |

Last Modified: | 29 Oct 2017 00:02 |

Identification Number: | |

URI: | http://eprints.lancs.ac.uk/id/eprint/19469 |

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