Results 1 to 10 of about 797 (160)

Multifractal Detrended Fluctuation Analysis of Human gait Diseases [PDF]

open access: yesFrontiers in Physiology, 2013
IIn this paper multifractal detrended fluctuation analysis is used to study the human gait time series for normal and diseased sets. It is observed that long range correlation is primarily responsible for the origin of multifractality.
Srimonti eDutta   +2 more
doaj   +5 more sources

Characterizing stroke-induced changes in the variability of lower limb kinematics using multifractal detrended fluctuation analysis [PDF]

open access: yesFrontiers in Neurology, 2022
Movement variability reflects the adaptation of the neuromuscular control system to internal or external perturbations, but its relationship to stroke-induced injury is still unclear.
Pan Xu   +6 more
doaj   +2 more sources

Multifractal detrended fluctuation analysis of human EEG: preliminary investigation and comparison with the wavelet transform modulus maxima technique. [PDF]

open access: yesPLoS ONE, 2013
Recently, many lines of investigation in neuroscience and statistical physics have converged to raise the hypothesis that the underlying pattern of neuronal activation which results in electroencephalography (EEG) signals is nonlinear, with self-affine ...
Todd Zorick, Mark A Mandelkern
doaj   +2 more sources

From Accelerometer to Cognition: Hand Motion Can Reflect Effects of Cardiac Coherence on Cognitive Flexibility [PDF]

open access: yesSensors
Hand displacements during task-directed movements are not random, but exhibit fractal behavior. Wearable sensing e.g., accelerometer-derived hand movement fluctuations, could add a significant contribution to cognitive and behavioral sciences, by ...
Alix Bouni   +3 more
doaj   +2 more sources

The Cross-correlation Structure of Tehran Stock Exchange Indexes by Multifractal Detrended Fluctuation Analysis [PDF]

open access: yesتحقیقات مالی, 2012
One of the latest approaches for analyzing the coupled time series is MF-DXA. This technique has been used in many disciplines such as finance. In this paper, we have analyzed Tehran Stock Exchange indexes by MF-DXA and have found a scaling behavior ...
Reza Tehrani   +2 more
doaj   +1 more source

A Multivariate Method for Dynamic System Analysis: Multivariate Detrended Fluctuation Analysis Using Generalized Variance

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract Fractal fluctuations are a core concept for inquiries into human behavior and cognition from a dynamic systems perspective. Here, we present a generalized variance method for multivariate detrended fluctuation analysis (mvDFA). The advantage of this extension is that it can be applied to multivariate time series and considers intercorrelation ...
Sebastian Wallot   +5 more
wiley   +1 more source

Multifractal Detrended Cross-Correlation Analysis of Global Methane and Temperature

open access: yesRemote Sensing, 2020
Multifractal Detrended Cross-Correlation Analysis (MF-DCCA) was applied to time series of global methane concentrations and remotely-sensed temperature anomalies of the global lower and mid-troposphere, with the purpose of investigating the multifractal ...
Chris G. Tzanis   +3 more
doaj   +1 more source

Fractal Analysis of Power Grid Faults and Cross Correlation for the Faults and Meteorological Factors

open access: yesIEEE Access, 2020
Power-grid faults pose a great threat to the economy and to social stability. In this paper, the detrended fluctuation analysis method is used to investigate the scaling properties of power grid faults and the correlation between faults and ...
Tejun Zhou   +3 more
doaj   +1 more source

Stock Index Return Volatility Forecast via Excitatory and Inhibitory Neuronal Synapse Unit with Modified MF-ADCCA

open access: yesFractal and Fractional, 2023
Financial prediction persists a strenuous task in Fintech research. This paper introduces a multifractal asymmetric detrended cross-correlation analysis (MF-ADCCA)-based deep learning forecasting model to predict a succeeding day log return via ...
Luochao Wang, Raymond S. T. Lee
doaj   +1 more source

Multifractal analysis of solar flare indices and their horizontal visibility graphs [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
The multifractal properties of the daily solar X-ray brightness, X<sub><i>l</i></sub> and X<sub><i>s</i></sub>, during the period from 1 January 1986 to 31 December 2007 which includes two solar cycles are ...
Z. G. Yu, V. Anh, R. Eastes, D.-L. Wang
doaj   +1 more source

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