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Detrended Fluctuation Analysis of uterine electromyography
2011 1st Middle East Conference on Biomedical Engineering, 2011In respect to the main goal of our ongoing work for predicting preterm birth, we analyze in this paper uterine EMG recordings of 11 pregnant and laboring women by means of Detrended Fluctuation Analysis (DFA), a scaling analysis method that quantifies a simple parameter to represent the correlation properties of a time series.
Bassam Moslem +3 more
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EFFECT OF FILTERS ON MULTIVARIATE MULTIFRACTAL DETRENDED FLUCTUATION ANALYSIS
Fractals, 2021We investigate how various linear and nonlinear filters affect the scaling properties of long-range power-law multivariate synthetic series quantified by multivariate multifractal detrended fluctuation analysis (MV-MFDFA). We consider four types of transforms which are often encountered in physical and physiological processes: linear, nonlinear ...
QINGJU FAN +4 more
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Detrended fluctuation analysis using orthogonal polynomials
Physical Review E, 2020An alternative analysis approach, namely, orthogonal detrended fluctuation analysis (ODFA), is proposed to quantify the long-range correlation exponent. This method uses an orthogonal polynomial to attenuate any trends and quantify the (auto-) correlations in the data. The method is tested using numerically simulated data with long-range correlation. A
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Smoothed detrended fluctuation analysis
Journal of Statistical Computation and Simulation, 2016ABSTRACTThe method of detrended fluctuation analysis (DFA) is useful in revealing the extent of long-range dependence, it has successfully been applied to different fields of interest. In this paper we proposed a smoothed detrended fluctuation analysis method based on the principle of wavelet shrinkage.
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Detrended Fluctuation Analysis of Traffic Data
Chinese Physics Letters, 2007Different routing strategies may result in different behaviour of traffic on internet. We analyse the correlation of traffic data for three typical routing strategies by the detrended fluctuation analysis (DFA) and find that the degree of correlation of the data can be divided into three regions, i.e. weak, medium, and strong correlation.
Zhu Xiao-Yan, Liu Zong-Hua, Tang Ming
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Evenly spacing in Detrended Fluctuation Analysis
Physica A: Statistical Mechanics and its Applications, 2016Abstract Detrended Fluctuation Analysis is a widely used method, which aims at assessing the level of self-similarity in time series. This method analyzes the diffusion properties of the signal, by computing the linear regression slope in the diffusion plot, representing in log–log coordinates the relationship between the variability of the signal ...
Zainy M.H. Almurad, Didier Delignières
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Effects of quantization on detrended fluctuation analysis
Chinese Physics B, 2011Detrended fluctuation analysis (DFA) is a method foro estimating the long-range power-law correlation exponent in noisy signals. It has been used successfully in many different fields, especially in the research of physiological signals. As an inherent part of these studies, quantization of continuous signals is inevitable. In addition, coarse-graining,
Song-Sheng Zhu +3 more
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MULTIFRACTAL DETRENDED FLUCTUATIONS ANALYSIS FOR IBOVESPA ASSETS
Fractals, 2021The Efficient Market Hypothesis (EMH) can be considered the central pillar of support of the Modern Economic-Financial Theory. However, in the last few years, the EMH has been strongly contraried due to empirical evidence related to long-memory, fractal dimension and fat-tailed that were critical factors in formulating a theory opposed to EMH called ...
FERNANDO HENRIQUE ANTUNES DE ARAUJO +1 more
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Detrended fluctuation analysis of repetitive handwriting
2017 International Conference on Noise and Fluctuations (ICNF), 2017Although there is a tendency that the opportunity to write by hand is decreasing, handwriting is still one of the everyday activities of our lives. In this study, the experimental system that limits the writing speed of a subject was set up. The aim was to measure the fluctuation time series of a time element obtained from the measurement performed ...
Ryo Kumagai, Masafumi Uchida
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Detrended Fluctuation Analysis of EEG as a Measure of Depth of Anesthesia
IEEE Transactions on Biomedical Engineering, 2007For several decades, a number of methods have been developed for the noninvasive assessment of the level of consciousness during general anesthesia. In this paper, detrended fluctuation analysis is used to study the scaling behavior of the electroencephalogram as a measure of the level of consciousness.
Mathieu, Jospin +7 more
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