Non-uniform burst-sparsity learning for massive MIMO channel estimation

J Dai, A Liu, HC So - IEEE Transactions on Signal Processing, 2018 - ieeexplore.ieee.org
We address the downlink channel estimation problem for massive multiple-input multiple-
output (MIMO) systems in this paper, where the inherit burst-sparsity structure is exploited to …

Block sparse variational Bayes regression using matrix variate distributions with application to SSVEP detection

S Sharma, S Chaudhury - IEEE Transactions on Neural …, 2020 - ieeexplore.ieee.org
Due to the nonsparse representation, the use of compressed sensing (CS) for physiological
signals, such as a multichannel electroencephalogram (EEG), has been a challenge. We …

Bayesian multiple measurement vector problem with spatial structured sparsity patterns

N Han, Z Song - Digital Signal Processing, 2018 - Elsevier
A promising research that has drawn considerable attentions is exploiting the inherent
structures in the sparse signal. In this work, we apply the property to the multiple …

Online sparse and low-rank subspace learning from incomplete data: A Bayesian view

PV Giampouras, AA Rontogiannis, KE Themelis… - Signal Processing, 2017 - Elsevier
Extracting the underlying low-dimensional space where high-dimensional signals often
reside has been at the center of numerous algorithms in the signal processing and machine …

Variational Bayesian estimation of statistical properties of composite gamma log-normal distribution

AC Turlapaty - IEEE Transactions on Signal Processing, 2020 - ieeexplore.ieee.org
An iterative variational Bayesian method is proposed for estimation of the statistical
properties of the composite gamma log-normal distribution, specifically, the Nakagami …

Variational Bayes Block Sparse Modeling with Correlated Entries

S Sharma, S Chaudhury - 2018 24th International …, 2018 - ieeexplore.ieee.org
This paper addresses the problem of Bayesian Block Sparse Modeling when coefficients
within the blocks are correlated. In contrast to the current hierarchical methods which do not …

[HTML][HTML] Saddlepoint approximation for the generalized inverse Gaussian Lévy process

M Zhang, M Revie, J Quigley - Journal of Computational and Applied …, 2022 - Elsevier
The generalized inverse Gaussian (GIG) Lévy process is a limit of compound Poisson
processes, including the stationary gamma process and the stationary inverse Gaussian …

[PDF][PDF] Nonconvex Optimization Algorithms for Structured Matrix Estimation in Large-Scale Data Applications

PV Giampouras - 2018 - pergamos.lib.uoa.gr
Structured matrix estimation belongs to the family of learning tasks whose main goal is to
reveal low-dimensional embeddings of high-dimensional data. Nowadays, this task appears …

[引用][C] Online Sparse and Low-Rank Subspace Learning from Incomplete Data: A Bayesian View

KD Koutroumbas