Results 11 to 20 of about 214,409 (272)

Quantum sparse coding

open access: yesQuantum Machine Intelligence, 2022
Abstract The ultimate goal of any sparse coding method is to accurately recover from a few noisy linear measurements, an unknown sparse vector. Unfortunately, this estimation problem is NP-hard in general, and it is therefore always approached with an approximation method, such as lasso or orthogonal matching pursuit, thus trading off accuracy ...
Romano, Yaniv   +7 more
openaire   +2 more sources

Neural network detector with sparse codes for spin transfer torque magnetic random access memory

open access: yesCogent Engineering, 2023
This paper presents leveraging the neural network detector to improve the performance of a spin transfer torque magnetic random-access memory (STT-MRAM), where the sparse coding scheme is also applied to protect the user data for the asymmetric write ...
Chi Dinh Nguyen
doaj   +1 more source

On the Logical Error Rate of Sparse Quantum Codes

open access: yesIEEE Transactions on Quantum Engineering, 2022
The quantum paradigm presents a phenomenon known as degeneracy that can potentially improve the performance of quantum error correcting codes. However, the effects of this mechanism are sometimes ignored when evaluating the performance of sparse quantum ...
Patricio Fuentes   +3 more
doaj   +1 more source

Sparse Code With Minimum Hamming Distance of Three for Spin-Torque Transfer Magnetic Random Access Memory

open access: yesIEEE Access, 2023
Spin-torque-transfer magnetic random access memory (STT-MRAM) has recently emerged as a promising technology to replace dynamic random access memory (DRAM).
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

On the Design of 7/9-Rate Sparse Code for Spin-Torque Transfer Magnetic Random Access Memory

open access: yesIEEE Access, 2021
A design of 7/9-rate sparse code for spin-torque transfer magnetic random access memory (STT-MRAM) is proposed in this work. The STT-MRAM using spin-polarized current through magnetic tunnel junction (MTJ) to write data is one of the most promising ...
Chi Dinh Nguyen
doaj   +1 more source

Sparse-Coding Variational Autoencoders [PDF]

open access: yesNeural Computation, 2018
Abstract The sparse coding model posits that the visual system has evolved to efficiently code natural stimuli using a sparse set of features from an overcomplete dictionary. The original sparse coding model suffered from two key limitations; however: (1) computing the neural response to an image patch required minimizing a nonlinear ...
Victor Geadah   +4 more
openaire   +3 more sources

Improving Bit-Error-Rate Performance Using Modulation Coding Techniques for Spin-Torque Transfer Magnetic Random Access Memory

open access: yesIEEE Access, 2023
In non-volatile random-access memory (RAM) technologies, the spin-torque transfer magnetic random-access memory (STT-MRAM) is a promising candidate. STT-MRAM has attracted attention owing to its advantages, such as a high density, high endurance, and ...
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Synthesis of a comprehensive population code for contextual features in the awake sensory cortex

open access: yeseLife, 2021
How cortical circuits build representations of complex objects is poorly understood. Individual neurons must integrate broadly over space, yet simultaneously obtain sharp tuning to specific global stimulus features.
Evan H Lyall   +5 more
doaj   +1 more source

Discriminative Convolutional Sparse Coding of ECG Signals for Automated Recognition of Cardiac Arrhythmias

open access: yesMathematics, 2022
Electrocardiogram (ECG) is a common and powerful tool for studying heart function and diagnosing several abnormal arrhythmias. In this paper, we present a novel classification model that combines the discriminative convolutional sparse coding (DCSC ...
Bing Zhang, Jizhong Liu
doaj   +1 more source

Sparse Regression Codes [PDF]

open access: yesFoundations and TrendsĀ® in Communications and Information Theory, 2019
Developing computationally-efficient codes that approach the Shannon-theoretic limits for communication and compression has long been one of the major goals of information and coding theory. There have been significant advances towards this goal in the last couple of decades, with the emergence of turbo codes, sparse-graph codes, and polar codes. These
Venkataramanan, Ramji   +2 more
openaire   +3 more sources

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