Bayesian numerical inference for Markovian models -- Application to tropical forest dynamics

Fabien Campillo 1 R. Rakotozafy 2 Vivien Rossi 3
1 MERE - Water Resource Modeling
CRISAM - Inria Sophia Antipolis - Méditerranée , INRA - Institut National de la Recherche Agronomique : UMR0729
2 Université de Fianarantsoa [Fianarantsoa]
3 ECOFOG - Ecologie des forêts de Guyane
Abstract : Bayesian modelling is fluently employed to assess natural ressources. It is associated with Monte Carlo Markov Chains (MCMC) to get an approximation of the distribution law of interest. Hence in such situations it is important to be able to propose N independent realiza- tions of this distribution law. We propose a strategy for making N parallel Monte Carlo Markov Chains interact in order to get an approximation of an independent N -sample of a given target law. In this method each individual chain proposes candidates for all other chains. We prove that the set of interacting chains is itself a MCMC method for the product of N target measures. Compared to independent parallel chains this method is more time consuming, but we show through example that it possesses many advantages. This approach will be applied to a forest dynamic model.
Type de document :
Communication dans un congrès
International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources, Jul 2007, Granada, Spain. pp.53-56, 2007, International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources, MAMERN'07
Liste complète des métadonnées

Littérature citée [6 références]  Voir  Masquer  Télécharger
https://hal.inria.fr/inria-00506591
Contributeur : Fabien Campillo <>
Soumis le : mercredi 28 juillet 2010 - 12:44:52
Dernière modification le : samedi 27 janvier 2018 - 01:31:14
Document(s) archivé(s) le : vendredi 29 octobre 2010 - 10:21:58

Fichier

campillo2007c.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : inria-00506591, version 1

Collections

CIRAD | AGROPARISTECH | INRIA | INSMI | ECOFOG | INRA

Citation

Fabien Campillo, R. Rakotozafy, Vivien Rossi. Bayesian numerical inference for Markovian models -- Application to tropical forest dynamics. International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources, Jul 2007, Granada, Spain. pp.53-56, 2007, International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources, MAMERN'07. 〈inria-00506591〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

474

Téléchargements de fichiers

106

Contact


archive-ouverte@inria.fr