• Aucun résultat trouvé

A Bayesian non-parametric hidden Markov random model for hemodynamic brain parcellation

N/A
N/A
Protected

Academic year: 2021

Partager "A Bayesian non-parametric hidden Markov random model for hemodynamic brain parcellation"

Copied!
16
0
0

Texte intégral

Loading

Figure

Fig. 1 illustrates the hierarchical model of the NP-JPDE model.
Fig. 3. Ground truth HRF shapes ( , h k k = 1, …, K ω with ω = {1, …, 3}) used for generating synthetic fMRI time series.
Fig. 9. Parcellation estimates obtained using the NP-JPDE model for a synthetic fMRI BOLD time series with 11 parcels (grid size=200×200).
Fig. 11. Parcellation estimates obtained using the K-means and Ward's algorithms with 3, 5 and 7 parcels for the synthetic BOLD time series of Exp 2.
+3

Références

Documents relatifs

L’établissement des semis de Pinus pinea a été étudié in situ et sous des conditions contrôlées pour trois forêts au nord de la Tunisie (Mekna III, Ouchtata II et

Une méthode consiste par exemple à dater les sédiments en piémont (à la base) de la chaîne et à quantifier les taux de sédimentation. Une augmentation généralisée

Now we are interested in a decision criterion that allows us to detect as soon as possible a degraded state in order to return appliances to perform maintenance action before

L’algorithme de Viterbi permet de trouver, étant donné une séquence d’observation, le chemin le plus probable dans un HMM (la succession la plus probable d’états)

Bayesian Nonparametric Priors for Hidden Markov Random Fields: Application to Image Segmentation.. Hongliang Lu, Julyan Arbel,

Bayesian methods / mixed linear model / Dirichlet process prior / correlated random effects / Gibbs

We observed that (i) the posterior estimates obtained under were indeed sensitive to the specification and precision of prior distributions imposed on the segment types and

As a consequence, we can rely on previously established results for these autoregressive processes with Markov regime (Douc, Moulines and Rydén, 2004) and thus obtain the