Bayesian Compressive Sensing for Cluster ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Bayesian Compressive Sensing for Cluster Structured Sparse Signals
Auteur(s) :
Yu, Lei [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Algebra for Digital Identification and Estimation [ALIEN]
Sun, Hong [Auteur]
Barbot, Jean-Pierre [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Algebra for Digital Identification and Estimation [ALIEN]
Zheng, Gang [Auteur]
Non-Asymptotic estimation for online systems [NON-A]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Algebra for Digital Identification and Estimation [ALIEN]
Sun, Hong [Auteur]
Barbot, Jean-Pierre [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Algebra for Digital Identification and Estimation [ALIEN]
Zheng, Gang [Auteur]
Non-Asymptotic estimation for online systems [NON-A]
Titre de la revue :
Signal Processing
Pagination :
259-269
Éditeur :
Elsevier
Date de publication :
2012-01-01
ISSN :
0165-1684
Mot(s)-clé(s) en anglais :
Compressive sensing
Cluster structured sparse signals
Hierarchical Bayesian model
MCMC
Cluster structured sparse signals
Hierarchical Bayesian model
MCMC
Discipline(s) HAL :
Sciences de l'ingénieur [physics]/Traitement du signal et de l'image [eess.SP]
Informatique [cs]/Traitement du signal et de l'image [eess.SP]
Informatique [cs]/Traitement du signal et de l'image [eess.SP]
Résumé en anglais : [en]
In traditional framework of compressive sensing (CS), only sparse prior on the property of signals in time or frequency domain is adopted to guarantee the exact inverse recovery. Other than sparse prior, structures on the ...
Lire la suite >In traditional framework of compressive sensing (CS), only sparse prior on the property of signals in time or frequency domain is adopted to guarantee the exact inverse recovery. Other than sparse prior, structures on the sparse pattern of the signal have also been used as an additional prior, called model-based compressive sensing, such as clustered structure and tree structure on wavelet coefficients. In this paper, the cluster structured sparse signals are investigated. Under the framework of Bayesian compressive sensing, a hierarchical Bayesian model is employed to model both the sparse prior and cluster prior, then Markov Chain Monte Carlo (MCMC) sampling is implemented for the inference. Unlike the state-of-the-art algorithms which are also taking into account the cluster prior, the proposed algorithm solves the inverse problem automatically--prior information on the number of clusters and the size of each cluster is unknown. The experimental results show that the proposed algorithm outperforms many state-of-the-art algorithms.Lire moins >
Lire la suite >In traditional framework of compressive sensing (CS), only sparse prior on the property of signals in time or frequency domain is adopted to guarantee the exact inverse recovery. Other than sparse prior, structures on the sparse pattern of the signal have also been used as an additional prior, called model-based compressive sensing, such as clustered structure and tree structure on wavelet coefficients. In this paper, the cluster structured sparse signals are investigated. Under the framework of Bayesian compressive sensing, a hierarchical Bayesian model is employed to model both the sparse prior and cluster prior, then Markov Chain Monte Carlo (MCMC) sampling is implemented for the inference. Unlike the state-of-the-art algorithms which are also taking into account the cluster prior, the proposed algorithm solves the inverse problem automatically--prior information on the number of clusters and the size of each cluster is unknown. The experimental results show that the proposed algorithm outperforms many state-of-the-art algorithms.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Collections :
Source :
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