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Widening and clustering techniques allowing the use of monotone CFTP algorithm

  • Mohamed Yasser Bounnite and Abdelaziz Nasroallah EMAIL logo
Published/Copyright: November 4, 2015

Abstract

The standard Coupling From The Past (CFTP) algorithm is an interesting tool to sample from exact stationary distribution of a Markov chain. But it is very expensive in time consuming for large chains. There is a monotone version of CFTP, called MCFTP, that is less time consuming for monotone chains. In this work, we propose two techniques to get monotone chain allowing use of MCFTP: widening technique based on adding two fictitious states and clustering technique based on partitioning the state space in clusters. Usefulness and efficiency of our approaches are showed through a sample of Markov Chain Monte Carlo simulations.

Funding source: Ibn-al-Banna Laboratory of Mathematics and Applications (LIBMA) at Cadi Ayyad University

Funding source: Hassan II Academy of Sciences and Technology

Received: 2015-7-11
Accepted: 2015-10-20
Published Online: 2015-11-4
Published in Print: 2015-12-1

© 2015 by De Gruyter

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