Results 11 to 20 of about 965,256 (248)

Beyond ℓ1 sparse coding in V1. [PDF]

open access: yesPLoS Computational Biology, 2023
Growing evidence indicates that only a sparse subset from a pool of sensory neurons is active for the encoding of visual stimuli at any instant in time.
Ilias Rentzeperis   +3 more
doaj   +2 more sources

Fast Approximation for Sparse Coding with Applications to Object Recognition [PDF]

open access: yesSensors, 2021
Sparse Coding (SC) has been widely studied and shown its superiority in the fields of signal processing, statistics, and machine learning. However, due to the high computational cost of the optimization algorithms required to compute the sparse feature ...
Zhenzhen Sun, Yuanlong Yu
doaj   +2 more sources

Structural Smoothing Low-Rank Matrix Restoration Based on Sparse Coding and Dual-Weighted Model [PDF]

open access: yesEntropy, 2022
Group sparse coding (GSC) uses the non-local similarity of images as constraints, which can fully exploit the structure and group sparse features of images.
Jiawei Wu, Hengyou Wang
doaj   +2 more sources

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   +2 more sources

Flash-Based Computing-in-Memory Architecture to Implement High-Precision Sparse Coding [PDF]

open access: yesMicromachines, 2023
To address the concerns with power consumption and processing efficiency in big-size data processing, sparse coding in computing-in-memory (CIM) architectures is gaining much more attention.
Yueran Qi   +9 more
doaj   +2 more sources

Simultaneous Patch-Group Sparse Coding with Dual-Weighted ℓp Minimization for Image Restoration [PDF]

open access: yesMicromachines, 2021
Sparse coding (SC) models have been proven as powerful tools applied in image restoration tasks, such as patch sparse coding (PSC) and group sparse coding (GSC). However, these two kinds of SC models have their respective drawbacks. PSC tends to generate
Jiachao Zhang, Ying Tong, Liangbao Jiao
doaj   +2 more sources

Cerebellum-inspired neural network of supervised learning with tensor-based sparse coding for multi-class classification. [PDF]

open access: yesPLoS Computational Biology
Under the Marr-Ito-Albus framework, the cerebellum performs supervised learning in Purkinje cells upon the unsupervised sparse representations generated within granule cells, contributing fundamentally to associative learning in motor control.
Runguang Zhou   +3 more
doaj   +2 more sources

Hierarchical Sparse Coding of Objects in Deep Convolutional Neural Networks [PDF]

open access: yesFrontiers in Computational Neuroscience, 2020
Recently, deep convolutional neural networks (DCNNs) have attained human-level performances on challenging object recognition tasks owing to their complex internal representation.
Xingyu Liu, Zonglei Zhen, Jia Liu
doaj   +2 more sources

Joint bayesian convolutional sparse coding for image super-resolution. [PDF]

open access: yesPLoS ONE, 2018
We propose a convolutional sparse coding (CSC) for super resolution (CSC-SR) algorithm with a joint Bayesian learning strategy. Due to the unknown parameters in solving CSC-SR, the performance of the algorithm depends on the choice of the parameter.
Qi Ge, Wenze Shao, Liqian Wang
doaj   +2 more sources

Sparse coding [PDF]

open access: yes, 2008
The(frequently updated) original version is avalable at http://www.scholarpedia.org/article/Sparse_codingMammalian brains consist of billions of neurons, each capable of independent electrical activity.
Endres, D M, Foldiak, P
core   +3 more sources

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