Results 51 to 60 of about 84,467 (191)

Evaluation of Geometric Attractor Structure and Recurrence Analysis in Professional Dancers

open access: yesEntropy, 2022
Background: Human motor systems contain nonlinear features. The purpose of this study was to evaluate the geometric structure of attractors and analyze recurrence in two different pirouettes (jazz and classic) performed by 15 professional dancers ...
Michalina Błażkiewicz
doaj   +1 more source

Recurrence quantification analysis of chimera states

open access: yesPhysics Letters A, 2015
Abstract Chimera states, characterised by coexistence of coherence and incoherence in coupled dynamical systems, have been found in various physical systems, such as mechanical oscillator networks and Josephson-junction arrays. We used recurrence plots to provide graphical representations of recurrent patterns and identify chimera states.
M.S. Santos   +5 more
openaire   +1 more source

A novel entropy recurrence quantification analysis

open access: yes, 2017
The growing study of time series, especially those related to nonlinear systems, has challenged the methodologies to characterize and classify dynamical structures of a signal. Here we conceive a new diagnostic tool for time series based on the concept of information entropy, in which the probabilities are associated to microstates defined from the ...
Corso, G.   +3 more
openaire   +2 more sources

Recurrence Quantification Analysis of the Period-Doubling Sequence [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2018
The period-doubling sequence is one of the most well-known aperiodic [Formula: see text]–[Formula: see text] sequences. In this paper, a complete description of its symbolic recurrence plot is given, and formulas for asymptotic values of basic recurrence quantifiers are derived.
openaire   +3 more sources

Nonlinear and Non-Stationary Detection for Measured Dynamic Signal from Bridge Structure Based on Adaptive Decomposition and Multiscale Recurrence Analysis

open access: yesApplied Sciences, 2019
To test the nonlinearity and non-stationarity of measured dynamic signals from a bridge structure with high-level noise and dense modal characteristics, a method that combines the adaptive signal decomposition with the recurrence analysis is proposed to ...
Erhua Zhang, Deshan Shan, Qiao Li
doaj   +1 more source

Integration of Wavelet and Recurrence Quantification Analysis in Emotion Recognition of Bilinguals

open access: yesInternational Clinical Neuroscience Journal, 2020
Background: This study offers a robust framework for the classification of autonomic signals into five affective states during the picture viewing. To this end, the following emotion categories studied: five classes of the arousal-valence plane (5C ...
Ateke Goshvarpour   +2 more
doaj   +1 more source

Classification of Electromyogram Using Recurrence Quantification Analysis

open access: yesProcedia Computer Science, 2011
AbstractClinical analysis of the electromyogram is a powerful tool for diagnosis of neuromuscular diseases. Therefore, the classification of electromyogram signals has attracted much attention over the years. Several classification methods based on techniques such as neuro-fuzzy systems, wavelet coefficients, and artificial neural networks have been ...
Sultornsanee, Sivarit   +2 more
openaire   +1 more source

Bandwidth extension method based on nonlinear audio characteristics classification

open access: yesTongxin xuebao, 2013
A bandwidth extension method based on audio classification was proposed.Time series of audio signals were classified into four types based on recurrence plot and recurrence quantification analysis,and the fine spectrums were recovered by taking advantage
Li-yan ZHANG   +3 more
doaj   +2 more sources

Recurrence Quantification Analysis (RQA) of Toroidal End Tool Milling Process

open access: yesApplied Sciences
One type of milling process is the face milling of flat surfaces using a toroidal face cutter. A key feature of this process is that changes in the depth of the cut alter the entering angle, impacting milling dynamics by shifting cutting force ...
Lukasz Zylka   +4 more
doaj   +1 more source

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