Results 21 to 30 of about 965,256 (248)

Research on software credibility algorithm based on deep convolutional sparse coding [PDF]

open access: yesMATEC Web of Conferences, 2021
Based on the author's research time, this paper studies the software credibility algorithm based on deep convolutional sparse coding. Firstly, it summarizes the convolutional sparse coding and trust classification system, and then constructs the ...
Xu Zhaosheng
doaj   +1 more source

Bayesian modelling of music : algorithmic advances and experimental studies of shift-invariant sparse coding [PDF]

open access: yes, 2005
PhDIn order to perform many signal processing tasks such as classification, pattern recognition and coding, it is helpful to specify a signal model in terms of meaningful signal structures.
Blumensath, Thomas
core   +4 more sources

Image Classification Method Based on Non-negative Elastic Net Sparse Coding Algorithm [PDF]

open access: yesJisuanji gongcheng, 2017
In order to improve the image classification accuracy,this paper proposes a Non-negative Elastic Net Sparse Coding(NENSC)algorithm.This algorithm combines the advantages of non-negative sparse coding and elastic net algorithm.It introduces an l2norm ...
ZHANG Yong,ZHANG Yangyang,CHENG Hong,ZHANG Yanxia
doaj   +1 more source

Fast and Efficient Union of Sparse Orthonormal Transforms via DCT and Bayesian Optimization

open access: yesApplied Sciences, 2022
Sparse orthonormal transform is based on orthogonal sparse coding, which is relatively fast and suitable in image compression such as analytic transforms with better performance.
Gihwan Lee, Yoonsik Choe
doaj   +1 more source

Sparse coding models can exhibit decreasing sparseness while learning sparse codes for natural images. [PDF]

open access: yesPLoS Computational Biology, 2013
The sparse coding hypothesis has enjoyed much success in predicting response properties of simple cells in primary visual cortex (V1) based solely on the statistics of natural scenes. In typical sparse coding models, model neuron activities and receptive
Joel Zylberberg, Michael Robert DeWeese
doaj   +1 more source

Efficient sparse coding in early sensory processing: lessons from signal recovery. [PDF]

open access: yesPLoS Computational Biology, 2012
Sensory representations are not only sparse, but often overcomplete: coding units significantly outnumber the input units. For models of neural coding this overcompleteness poses a computational challenge for shaping the signal processing channels as ...
András Lörincz   +2 more
doaj   +1 more source

A Probabilistic Analysis of Sparse Coded Feature Pooling and Its Application for Image Retrieval. [PDF]

open access: yesPLoS ONE, 2015
Feature coding and pooling as a key component of image retrieval have been widely studied over the past several years. Recently sparse coding with max-pooling is regarded as the state-of-the-art for image classification. However there is no comprehensive
Yunchao Zhang   +3 more
doaj   +1 more source

Sparse representations in audio & music: from coding to source separation [PDF]

open access: yes, 2010
—Sparse representations have proved a powerful toolin the analysis and processing of audio signals and already lieat the heart of popular coding standards such as MP3 andDolby AAC.
Davies, ME   +15 more
core   +1 more source

On the Sparse Structure of Natural Sounds and Natural Images: Similarities, Differences, and Implications for Neural Coding

open access: yesFrontiers in Computational Neuroscience, 2019
Sparse coding models of natural images and sounds have been able to predict several response properties of neurons in the visual and auditory systems. While the success of these models suggests that the structure they capture is universal across domains ...
Eric McVoy Dodds   +4 more
doaj   +1 more source

Sparse representation based intraframe and semi‐intraframe video coding schemes for low bitrates

open access: yesIET Image Processing, 2021
This paper proposes some extensions of the successful sparse coding of still images to intraframe and semi‐intraframe video coding. The presented frameworks apply the efficient K‐singular value decomposition and recursive least squares dictionary ...
Maziar Irannejad   +1 more
doaj   +1 more source

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