Results 21 to 30 of about 214,409 (272)

Sparse Regression Codes for Multi-terminal Source and Channel Coding [PDF]

open access: yes, 2012
We study a new class of codes for Gaussian multi-terminal source and channel coding. These codes are designed using the statistical framework of high-dimensional linear regression and are called Sparse Superposition or Sparse Regression codes.
Tatikonda, Sekhar, Venkataramanan, Ramji
core   +1 more source

Blind recognition of sparse parity‐check matrices of low‐density parity‐check codes in the presence of noise

open access: yesIET Communications, 2023
This paper studies the blind recognition method of the sparse parity‐check matrices of low‐density parity‐check codes in noncooperative communication, which is critical to the reverse analysis of communication protocols using LDPC codes.
Yong Ding, Zhiping Huang, Jing Zhou
doaj   +1 more source

Measurement-induced phase transitions in sparse nonlocal scramblers

open access: yesPhysical Review Research, 2022
Measurement-induced phase transitions arise due to a competition between the scrambling of quantum information in a many-body system and local measurements.
Tomohiro Hashizume   +2 more
doaj   +1 more source

Sparse coding

open access: yesScholarpedia, 2008
The(frequently updated) original version is avalable at http://www.scholarpedia.org/article/Sparse_coding Mammalian brains consist of billions of neurons, each capable of independent electrical activity. Information in the brain is represented by the pattern of activation of this large neural population, forming a neural code.
Foldiak, P, Endres, D M
openaire   +2 more sources

Compressed sensing using sparse binary measurements: a rateless coding perspective [PDF]

open access: yes, 2015
Compressed Sensing (CS) methods using sparse binary measurement matrices and iterative message-passing re- covery procedures have been recently investigated due to their low computational complexity and excellent performance.
Pizurica, Aleksandra   +2 more
core   +1 more source

Hadamard Aperiodic Interval Codes for Parallel-Transmission 2D and 3D Synthetic Aperture Ultrasound Imaging

open access: yesApplied Sciences, 2022
We present a new set of near orthogonal codes which we call Hadamard Aperiodic Interval (HAPI) codes and demonstrate their utility for parallel multi-transmitter synthetic aperture imaging. The codes are tri-state and sparse.
Tarek Kaddoura, Roger J. Zemp
doaj   +1 more source

On the Photonic Implementation of Universal Quantum Gates, Bell States Preparation Circuit, Quantum Relay and Quantum LDPC Encoders and Decoders

open access: yesIEEE Photonics Journal, 2010
We show that any family of universal quantum gates can be implemented based on a single optical hybrid/Mach-Zehnder interferometer (MZI)/directional coupler (DC) and either a highly nonlinear optical fiber or a tap coupler with an avalanche photodiode ...
Ivan B. Djordjevic
doaj   +1 more source

Dictionary Learning-based Inpainting on Triangular Meshes [PDF]

open access: yes, 2018
The problem of inpainting consists of filling missing or damaged regions in images and videos in such a way that the filling pattern does not produce artifacts that deviate from the original data. In addition to restoring the missing data, the inpainting
Fuentes Perez, Lizeth J   +4 more
core   +1 more source

Image Classification Based on Neighborhood Preserving Embedding Sparse Coding [PDF]

open access: yesJisuanji gongcheng, 2016
Aiming at the problem of image classification with a complex background,this paper proposes a new image algorithm based on Neighborhood Preserving Embedding regularization Sparse Coding algorithm(NPESC).Comparing with traditional sparse coding,it adds ...
GAO Jiaxue,CHEN Xiuhong
doaj   +1 more source

Batched Sparse Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
51 pages, 12 figures, submitted to IEEE Transactions on Information ...
Yang, Shenghao, Yeung, Raymond W.
openaire   +2 more sources

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