Results 21 to 30 of about 18,134 (280)

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

Introduction to multifractal detrended fluctuation analysis in matlab. [PDF]

open access: yesFront Physiol, 2012
Fractal structures are found in biomedical time series from a wide range of physiological phenomena. The multifractal spectrum identifies the deviations in fractal structure within time periods with large and small fluctuations. The present tutorial is an introduction to multifractal detrended fluctuation analysis (MFDFA) that estimates the ...
Ihlen EA.
europepmc   +6 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

Effect of nonlinear filters on detrended fluctuation analysis [PDF]

open access: yesPhysical Review E, 2005
We investigate how various linear and nonlinear transformations affect the scaling properties of a signal, using the detrended fluctuation analysis (DFA).
Bernaola-Galvan, P.   +5 more
core   +3 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

Detecting Long-range Correlations with Detrended Fluctuation Analysis [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2001
We examine the Detrended Fluctuation Analysis (DFA), which is a well-established method for the detection of long-range correlations in time series. We show that deviations from scaling that appear at small time scales become stronger in higher orders of
Absil   +42 more
core   +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

Empirical properties of inter-cancellation durations in the Chinese stock market [PDF]

open access: yesFrontiers in Physics, 2014
Order cancellation process plays a crucial role in the dynamics of price formation in order-driven stock markets and is important in the construction and validation of computational finance models.
Gao-Feng eGu   +10 more
doaj   +3 more sources

Hybrid Framework for Cartilage Damage Detection from Vibroacoustic Signals Using Ensemble Empirical Mode Decomposition and CNNs [PDF]

open access: yesSensors
This study proposes a hybrid analytical framework for detecting chondromalacia using vibroacoustic (VAG) signals from patients with knee osteoarthritis (OA) and healthy controls (HCs).
Anna Machrowska   +5 more
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

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