Results 11 to 20 of about 20,469 (205)

$NP/CLP$ Equivalence: A Phenomenon Hidden Among Sparsity Models for Information Processing

open access: yesCoRR, 2015
submitted to IEEE Transactions on Information Theory in June ...
Jigen Peng, Shigang Yue, Haiyang Li
openaire   +2 more sources

A Multichannel Spatial Compressed Sensing Approach for Direction of Arrival Estimation [PDF]

open access: yes, 2010
The final publication is available at http://link.springer.com/chapter/10.1007%2F978-3-642-15995-4_57ESPRC Leadership Fellowship EP/G007144/1EPSRC Platform Grant EP/045235/1EU FET-Open Project FP7-ICT-225913 ...
D. Malioutov   +7 more
core   +4 more sources

A new development of non-local image denoising using fixed-point iteration for non-convex ℓp sparse optimization.

open access: yesPLoS ONE, 2018
We proposed a new efficient image denoising scheme, which mainly leads to four important contributions whose approaches are different from existing ones.
Shuting Cai   +5 more
doaj   +1 more source

A Greedy Algorithm To Extract Sparsity Degree For L1/L0-Equivalence In A Deterministic Context

open access: yes, 2012
Publication in the conference proceedings of EUSIPCO, Bucharest, Romania ...
Pustelnik, Nelly   +4 more
openaire   +4 more sources

Design of robust constant beamwidth beamformer with maximal sparsity

open access: yesTongxin xuebao, 2015
To reduce the complexity of broadband array systems,an optimization model was built based on the analysis of the sparsity of the broadband array.The objective function was the convex combination of sensor and TDL sparsity with the constraint of constant ...
Kai WU, Tao SU, Qiang LI, Xue-hui HE
doaj   +2 more sources

Sparsity Equivalence of Anisotropic Decompositions

open access: yesCoRR, 2011
Anisotropic decompositions using representation systems such as curvelets, contourlet, or shearlets have recently attracted significantly increased attention due to the fact that they were shown to provide optimally sparse approximations of functions exhibiting singularities on lower dimensional embedded manifolds.
openaire   +2 more sources

Asymptotic equivalence of quantum state tomography and noisy matrix completion

open access: yes, 2013
Matrix completion and quantum tomography are two unrelated research areas with great current interest in many modern scientific studies. This paper investigates the statistical relationship between trace regression in matrix completion and quantum state ...
Wang, Yazhen
core   +1 more source

Robust PCA as Bilinear Decomposition with Outlier-Sparsity Regularization [PDF]

open access: yes, 2011
Principal component analysis (PCA) is widely used for dimensionality reduction, with well-documented merits in various applications involving high-dimensional data, including computer vision, preference measurement, and bioinformatics.
Giannakis, Georgios B., Mateos, Gonzalo
core   +1 more source

Realizability and Internal Model Control on Networks

open access: yes, 2019
It is proved that network realizability of controllers can be enforced without conservatism using convex constraints on the closed loop transfer function.
boyd, wang
core   +1 more source

Parabolic Molecules

open access: yes, 2012
Anisotropic decompositions using representation systems based on parabolic scaling such as curvelets or shearlets have recently attracted significantly increased attention due to the fact that they were shown to provide optimally sparse approximations of
Grohs, Philipp, Kutyniok, Gitta
core   +1 more source

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