Results 11 to 20 of about 4,247 (48)

Scampi: a robust approximate message-passing framework for compressive imaging

open access: yes, 2015
Reconstruction of images from noisy linear measurements is a core problem in image processing, for which convex optimization methods based on total variation (TV) minimization have been the long-standing state-of-the-art.
Barbier, Jean   +2 more
core   +1 more source

Distributed Compressed Sensing off the Grid

open access: yes, 2014
This letter investigates the joint recovery of a frequency-sparse signal ensemble sharing a common frequency-sparse component from the collection of their compressed measurements.
Jiang, Sumxin   +4 more
core   +1 more source

The Third-Order Term in the Normal Approximation for the AWGN Channel

open access: yes, 2013
This paper shows that, under the average error probability formalism, the third-order term in the normal approximation for the additive white Gaussian noise channel with a maximal or equal power constraint is at least $\frac{1}{2} \log n + O(1)$.
Tan, Vincent Y. F., Tomamichel, Marco
core   +1 more source

An Algorithmic Approach to Information and Meaning [PDF]

open access: yes, 2011
I will survey some matters of relevance to a philosophical discussion of information, taking into account developments in algorithmic information theory (AIT).
Zenil, Hector
core   +4 more sources

Orthogonal Transform Multiplexing with Memoryless Nonlinearity: a Possible Alternative to Traditional Coded-Modulation Schemes

open access: yes, 2017
In this paper, we propose a novel joint coding-modulation technique based on serial concatenation of orthogonal linear transform, such as discrete Fourier transform (DFT) or Walsh-Hadamard transform (WHT), with memoryless nonlinearity.
Zhidkov, Sergey V.
core   +1 more source

Pl\"ucker Embedding of Cyclic Orbit Codes [PDF]

open access: yes, 2012
Cyclic orbit codes are a family of constant dimension codes used for random network coding. We investigate the Pl\"ucker embedding of these codes and show how to efficiently compute the Grassmann coordinates of the code words.Comment: to appear in ...
Trautmann, Anna-Lena
core  

Replica Analysis and Approximate Message Passing Decoder for Superposition Codes

open access: yes, 2014
Superposition codes are efficient for the Additive White Gaussian Noise channel. We provide here a replica analysis of the performances of these codes for large signals.
Barbier, Jean, Krzakala, Florent
core   +1 more source

Isometry and Automorphisms of Constant Dimension Codes [PDF]

open access: yes, 2012
We define linear and semilinear isometry for general subspace codes, used for random network coding. Furthermore, some results on isometry classes and automorphism groups of known constant dimension code constructions are ...
Trautmann, Anna-Lena
core  

Coded Caching for a Large Number Of Users

open access: yes, 2016
Information theoretic analysis of a coded caching system is considered, in which a server with a database of N equal-size files, each F bits long, serves K users.
Amiri, Mohammad Mohammadi   +2 more
core   +1 more source

Hub structure in functional network of EEG signals supporting high cognitive functions in older individuals. [PDF]

open access: yesFront Aging Neurosci, 2023
Tobe M   +7 more
europepmc   +1 more source

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