Results 1 to 10 of about 10,127 (114)

ReLU, Sparseness, and the Encoding of Optic Flow in Neural Networks [PDF]

open access: yesSensors
Accurate self-motion estimation is critical for various navigational tasks in mobile robotics. Optic flow provides a means to estimate self-motion using a camera sensor and is particularly valuable in GPS- and radio-denied environments. The present study
Oliver W. Layton   +2 more
doaj   +2 more sources

Direct construction of sparse suffix arrays with Libsais [PDF]

open access: yesBMC Bioinformatics
Background Pattern matching is a fundamental challenge in bioinformatics, especially in the fields of genomics, transcriptomics and proteomics. Efficient indexing structures, such as suffix arrays, are critical for searching large datasets.
Simon Van de Vyver   +4 more
doaj   +2 more sources

Sparseness facilitates image encoding across visuo-frontal networks in freely moving macaque [PDF]

open access: yesNature Communications
Sparseness is a quantitative measure of coding efficiency that characterizes the extent to which information is represented by the selective activation of a small subset of neurons.
Arun Parajuli   +2 more
doaj   +2 more sources

Long memory lifetimes require complex synapses and limited sparseness

open access: yesFrontiers in Computational Neuroscience, 2007
Theoretical studies have shown that memories last longer if the neural representations are sparse, that is, when each neuron is selective for a small fraction of the events creating the memories.
Stefano Fusi, Fusi Stefano
exaly   +3 more sources

Weighted Sparseness-Based Anomaly Detection for Hyperspectral Imagery

open access: yesSensors, 2023
Anomaly detection of hyperspectral remote sensing data has recently become more attractive in hyperspectral image processing. The low-rank and sparse matrix decomposition-based anomaly detection algorithm (LRaSMD) exhibits poor detection performance in ...
Zhen Zheng, Erwei Zhao, Xing Lian
exaly   +3 more sources

Sparseness-constrained nonnegative tensor factorization for detecting topics at different time scales

open access: yesFrontiers in Applied Mathematics and Statistics
Temporal text data, such as news articles or Twitter feeds, often comprises a mixture of long-lasting trends and transient topics. Effective topic modeling strategies should detect both types and clearly locate them in time.
Deanna Needell
exaly   +3 more sources

Dissipativity Analysis of Large-Scale Networked Systems

open access: yesApplied Sciences, 2023
This paper investigates the dissipativity analysis of large-scale networked systems with linear time-invariant dynamics. The networked system is composed of a large number of subsystems whose connections are arbitrary, and each subsystem can have ...
Yuanfei Sun, Jirong Wang, Huabo Liu
doaj   +1 more source

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

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

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