Results 21 to 30 of about 489,349 (320)

Modulation Recognition of Low-SNR UAV Radar Signals Based on Bispectral Slices and GA-BP Neural Network

open access: yesDrones, 2023
In this paper, we address the challenge of low recognition rates in existing methods for radar signals from unmanned aerial vehicles (UAV) with low signal-to-noise ratios (SNRs).
Xuemin Liu   +5 more
doaj   +1 more source

Sparse Recovery Using Sparse Matrices [PDF]

open access: yesProceedings of the IEEE, 2010
In this paper, we survey algorithms for sparse recovery problems that are based on sparse random matrices. Such matrices has several attractive properties: they support algorithms with low computational complexity, and make it easy to perform incremental updates to signals.
Gilbert, Anna, Indyk, Piotr
openaire   +4 more sources

Lifelong Learning Augmented Short Text Stream Clustering Method

open access: yesIEEE Access, 2021
Depending on the scanning mode, existing short text stream clustering methods can be divided into the following two kinds of methods: one-pass-based and batch-based.
Jipeng Qiang   +4 more
doaj   +1 more source

A Novel Muscle Synergy Extraction Method Used for Motor Function Evaluation of Stroke Patients: A Pilot Study

open access: yesSensors, 2021
In this paper, we present a novel muscle synergy extraction method based on multivariate curve resolution–alternating least squares (MCR-ALS) to overcome the limitation of the nonnegative matrix factorization (NMF) method for extracting non-sparse muscle
Yehao Ma   +5 more
doaj   +1 more source

An Improved Low Rank and Sparse Matrix Decomposition-Based Anomaly Target Detection Algorithm for Hyperspectral Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Anomaly target detection has been a hotspot of the hyperspectral imagery (HSI) processing in recent decades. One of the key research points in the HSI anomaly detection is the accurate descriptions of the background and anomaly targets.
Yan Zhang   +6 more
doaj   +1 more source

Research on compressive sensing of strong earthquake signals for earthquake early warning

open access: yesGeomatics, Natural Hazards & Risk, 2021
Earthquake early warning is an effective method to reduce casualties and losses. Based on the theory of compressive sensing, this paper proposes a strong earthquake signal processing architecture based on compressive sensing for difficulties of the ...
Jiening Xia   +4 more
doaj   +1 more source

Sparseness and expansion in sensory representations. [PDF]

open access: yesNeuron, 2014
SummaryIn several sensory pathways, input stimuli project to sparsely active downstream populations that have more neurons than incoming axons. Here, we address the computational benefits of expansion and sparseness for clustered inputs, where different ...
B. Babadi, H. Sompolinsky
semanticscholar   +2 more sources

The Relationship between Sparseness and Energy Consumption of Neural Networks

open access: yesJournal of Neural Transplantation and Plasticity, 2020
About 50-80% of total energy is consumed by signaling in neural networks. A neural network consumes much energy if there are many active neurons in the network. If there are few active neurons in a neural network, the network consumes very little energy.
Guanzheng Wang   +3 more
semanticscholar   +1 more source

Sparseness Meets Deepness: 3D Human Pose Estimation from Monocular Video [PDF]

open access: yesComputer Vision and Pattern Recognition, 2015
This paper addresses the challenge of 3D full-body human pose estimation from a monocular image sequence. Here, two cases are considered: (i) the image locations of the human joints are provided and (ii) the image locations of joints are unknown.
Xiaowei Zhou   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy