Results 1 to 10 of about 23,173,603 (235)

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   +4 more sources

Extended Detrended Fluctuation Analysis of Coarse-Grained Time Series [PDF]

open access: yesDiagnostics, 2022
A coarse-graining procedure, which involves averaging time series in non-overlapping windows followed by processing of the obtained multiple data sets, is the initial step in the multiscale entropy computation method.
Alexander A. Koronovskii   +7 more
doaj   +2 more sources

On the Validity of Detrended Fluctuation Analysis at Short Scales [PDF]

open access: yesEntropy, 2021
Detrended Fluctuation Analysis (DFA) has become a standard method to quantify the correlations and scaling properties of real-world complex time series. For a given scale ℓ of observation, DFA provides the function F(ℓ), which quantifies the fluctuations
Pedro Carpena   +2 more
doaj   +2 more sources

Detrended fluctuation analysis: A scale-free view on neuronal oscillations [PDF]

open access: yesFrontiers in Physiology, 2012
Recent years of research have shown that the complex temporal structure of ongoing oscillations is scale-free and characterized by long-range temporal correlations.
Richard eHardstone   +7 more
doaj   +2 more sources

Objective differentiation of neonatal EEG background grades using detrended fluctuation analysis [PDF]

open access: yesFrontiers in Human Neuroscience, 2015
A quantitative and objective assessment of background electroencephalograph (EEG) in sick neonates remains an everyday clinical challenge. We studied whether long range temporal correlations quantified by detrended fluctuation analysis (DFA) could be ...
Vladimir eMatic   +12 more
doaj   +2 more sources

Power considerations for the application of detrended fluctuation analysis in gait variability studies. [PDF]

open access: yesPLoS ONE, 2017
The assessment of gait variability using stochastic signal processing techniques such as detrended fluctuation analysis (DFA) has been shown to be a sensitive tool for evaluation of gait alterations due to aging and neuromuscular disease.
Nikita A Kuznetsov, Christopher K Rhea
doaj   +2 more sources

Detrended fluctuation analysis based on best-fit polynomial

open access: yesFrontiers in Environmental Science, 2022
Detrended fluctuation analysis (DFA) can quantify long-range correlation (LRC) and fractal scaling behavior of signal. We compared the results of variant DFA methods by varying the order of the polynomial and found that the order of 6 was relatively ...
Shanshan Zhao   +5 more
doaj   +1 more source

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

Detrended fluctuation analysis of earthquake data

open access: yesPhysical Review Research, 2021
The detrended fluctuation analysis (DFA) is extensively useful in stochastic processes to unveil the long-term correlation. Here, we apply the DFA to point processes that mimic earthquake data.
Takumi Kataoka   +2 more
doaj   +1 more source

Clustering Arid Rangelands Based on NDVI Annual Patterns and Their Persistence

open access: yesRemote Sensing, 2022
Rangeland ecosystems comprise more than a third of the global land surface, sustaining essential ecosystem services and livelihoods. In Spain, Southeast Spain includes some of the driest regions; accordingly, rangelands from Murcia and Almeria provinces ...
Ernesto Sanz   +6 more
doaj   +1 more source

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