| HAL : hal-00455050, version 1 |
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| Dirichlet prior for cascade SDE with Markov regime-switching |
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| Adaté Tossa 1Didier Bernard 2 |
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| (25/10/2009) |
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| A Stochastic Differential Equation appearing in the statistical theory of turbulence is extended in random environment by assuming that its two parameters are switched by an unobserved continuoustime Markov chain whose states represent the states of the environment. A Dirichlet process is placed as a prior on the space of the sample paths of this chain, leading to a hierarchical Dirichlet model whose estimation is done both on simulated data and on real data of wind speed measured at the entrance of a mangrove ecosystem. |
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| 1 : | CEntre de REcherches en MAthématiques de la DEcision (CEREMADE) |
| CNRS : UMR7534 – Université Paris IX - Paris Dauphine | |
| 2 : | Laboratoire de physique de l'Atmosphère Tropicale (LPAT) |
| Université des Antilles et de la Guyane | |
| 3 : | Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO) |
| Université d'Orléans – CNRS : UMR7349 | |
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| Domaine | : | Mathématiques/Statistiques Statistiques/Théorie |
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| Cascades – Dirichlet process – Dissipation – Mangrove – Markov regime switching – Random environment – Stochastic differential equation. |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00455050, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00455050 | |
| oai:hal.archives-ouvertes.fr:hal-00455050 | |
| Contributeur : Adaté Tossa | |
| Soumis le : Mardi 9 Février 2010, 14:48:52 | |
| Dernière modification le : Mercredi 10 Février 2010, 19:41:46 | |