Results 1 to 10 of about 77,863 (306)

Sparse based recurrent neural network long short term memory (rnn-lstm) model for the classification of ecg signals

open access: yesApplied Artificial Intelligence, 2022
In recent years, with the advancement of classical signal processing approaches, numerous works have been performed on the automatic ECG detection schemes for the enhancement of the effectiveness of the identification of the type of ECG heartbeats.
Sampath A, Sumithira T. R
doaj   +1 more source

Current Developments of Sparse Microwave Imaging

open access: yesLeida xuebao, 2014
The sparse microwave imaging combines the sparse signal processing theory with radar imaging to obtain new theory, new system, and new methodology of microwave imaging.
Wu Yi-rong   +5 more
doaj   +1 more source

A novel sparse representation algorithm for AIS real-time signals

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Sparse representation of signals based on a redundant dictionary is a new signal representation theory. Recent research activities in this field have concentrated mainly on the study of dictionary design and sparse decomposition algorithms.
Shuaiheng Huai, Shufang Zhang
doaj   +1 more source

Asynchronous processing of sparse signals

open access: yesIET Signal Processing, 2014
Unlike synchronous processing, asynchronous processing is more efficient in biomedical and sensing networks applications as it is free from aliasing constraints and quantization error in the amplitude, it allows continuous–time processing and more importantly data is only acquired in significant parts of the signal. We consider signal decomposers based
Azime Can-Cimino   +2 more
openaire   +1 more source

A DCA‐based sparse coding for video summarization with MCP

open access: yesIET Image Processing, 2023
Video summarization offers a summary version that conveys the primary information of a longer video. The main challenges of video summarization are related to keyframe extraction and saliency mapping.
Yujie Li   +3 more
doaj   +1 more source

Sparse Signal Representations of Bearing Fault Signals for Exhibiting Bearing Fault Features

open access: yesShock and Vibration, 2016
Sparse signal representations attract much attention in the community of signal processing because only a few coefficients are required to represent a signal and these coefficients make the signal understandable.
Wei Peng   +3 more
doaj   +1 more source

A note on orthogonal matching pursuit under restricted isometry property

open access: yesIET Signal Processing, 2022
The orthogonal matching pursuit (OMP) algorithm is a classical greedy algorithm widely used in compressed sensing. The number of iterations required for the OMP algorithm to perform exact the recovery of sparse signals is a fundamental problem in signal ...
Xueping Chen   +3 more
doaj   +1 more source

Kinetically Consistent Data Assimilation for Plant PET Sparse Time Activity Curve Signals

open access: yesFrontiers in Plant Science, 2022
Time activity curve (TAC) signal processing in plant positron emission tomography (PET) is a frontier nuclear science technique to bring out the quantitative fluid dynamic (FD) flow parameters of the plant vascular system and generate knowledge on crops ...
Nicola D'Ascenzo   +9 more
doaj   +1 more source

Perspectives on Theories and Methods of Structural Signal Processing

open access: yesLeida xuebao, 2015
Over the past decade structural signal processing is an emerging field, which gained researchers' intensive attentions in various areas including the applied mathematics, physics, information theory, signal processing, and so on.
Li Lian-lin, Zhou Xiao-yang, Cui Tie-jun
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

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