Detrended Fluctuation Analysis (DFA)
A Multifractal Detrended Fluctuation Analysis of the Moroccan Stock Exchange
... In this paper, we investigate the multifractal properties of MASI and MADEX logarithmic returns using the multifractal detrended fluctuation analysis MF-DFA. We first calculate the ...
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Two-dimensional multifractal detrended fluctuation analysis for plant identification
... tal analysis (MFA) methods were proposed ...multifractal detrended fluctuation analysis (MF-DFA) method that can deal with non-stationary is a desirable method for leaf image ...
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A Fault Diagnosis Scheme of Gear Vibration Signal Based on Variational Mode Decomposition and Detrended Fluctuation Analysis
... local fluctuation rather than the large scale ...local fluctuation can effectively improve the recognition performance of the gear ...and detrended fluctuation analysis (DFA) is ...
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A Sleep Scoring System Using EEG Combined Spectral and Detrended Fluctuation Analysis Features
... Detrended fluctuation analysis (DFA) is a widely used technique for the detection of long-range autocorrela- tion in non-stationary and noisy time series ...of DFA over conventional ...
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Extracting a seizure intensity index from one channel EEG signal using bispectral and detrended fluctuation analysis
... using Detrended Fluctuation Analysis (DFA), Bis- pectral Analysis (BIS), and Standard Deviation (SD) three features from single-channel EEG signals have been derived in the foresaid ...
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Proarrhythmic risk and determinants of cardiac autonomic dysfunction in collagen induced arthritis rats
... Backgrounds: Patients with rheumatoid arthritis (RA) have increased risk of sudden cardiac death (SCD), which is two-fold higher than general population. The driving cause of SCD was considered due to lift-threatening ...
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On the feasibility of tilt test outcome early prediction using ECG and pressure parameters
... [detrended fluctuation analysis (DFA) and sample entropy (SampEn)], which had been pre- viously shown to be valuable in other ECG analysis pro- blems; (c) by introducing new monitored ...
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Multi complexity measures of heart rate variability and the effect of vasopressor titration: a prospective cohort study of patients with septic shock
... statistical models. The degree of clustering can be mea- sured, and appropriate statistical models for clustered data must account for the degree of clustering/non-inde- pendence [34]. Generalized linear mixed models ...
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R/S analysis and DFA: finite sample properties and confidence intervals
... However, the estimates for pure Gaussian process can strongly deviate from the limit of 0.5 (Weron, 2002; and Couillard & Davison, 2005). Moreover, the estimates are influenced by choice of minimum and maximum scale ...
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Multifractal analysis of solar flare indices and their horizontal visibility graphs
... multifractal analysis has been developed for the multifractal characterisation of normalised, stationary time ...Multifractal detrended fluctuation analysis (MF- DFA), which is a ...
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Multifractal variability in geoelectrical signals and correlations with seismicity: a study case in southern Italy
... Abstract. Multifractal fluctuations in the time dynamics of geoelectrical data, recorded in a seismic area of southern Italy, have been revealed using the Multifractal Detrended Fluctuation Analysis ...
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Alternans Lowers the Scaling Exponent of Heartbeat Fluctuation Dynamics in Animal Models and Humans
... the detrended fluctuation analysis (DFA) can distinguish a normal heart (intact heart) from an unhealthy heart (isolated heart) in animal models [7], we may study this intriguing rhythm by the ...
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Fractality and Multifractality Analysis of News Sentiments Time Series
... the Fluctuation Analysis (FA), the Detrended Fluctuation Analysis of order 1 (DFA), Rescaled Range Analysis (R/S), Average Wavelet Coefficient Method (AWC) and Fourier ...
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Monitoring the depth of anaesthesia using simplified electroencephalogram (EEG)
... Fractal analysis is used to characterize complex time serie based on the time-evolutionary ...fractal analysis, detrended fluctuation analysis has been applied to detect the correlation ...
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Essential Feature Extraction of Photoplethysmography Signal of Men and Women in Their 20s
... and Detrended Fluctuation Analysis ...using DFA, the average fluctuation F(w) was ...and DFA were significantly ...clustering analysis was applied to the results using ...
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Statistical features of seismoelectric signals prior to M7.4 Guerrero-Oaxaca earthquake (M´exico)
... spectrum showed a crossover behavior, with a low frequency range of the signals (0.002 Hz–0.01 Hz) characterized by a white noise behavior, while high frequencies (0.01 Hz– 0.25 Hz) exhibited a complex correlated ...
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Spatial analysis of oil reservoirs using detrended fluctuation analysis of geophysical data
... the detrended fluctuation analysis (DFA) technique to investigate spatial properties of an oil ...from fluctuation analysis over well ...in DFA exponents of geophysical ...
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Multi scale symbolic entropy analysis provides prognostic prediction in patients receiving extracorporeal life support
... fractal analysis such as detrended fluctuation analysis (DFA) [45-47] ...MSE analysis indicates the trivial correlation ...
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Source Of The Multifractality In Exchange Markets: Multifractal Detrended Fluctuations Analysis
... In this study, we want to analyze the multifractality structure of currency markets. Empirical tests are conducted for the four leading currencies’ returns: GBP/USD, EUR/USD, USD/JPY and USD/CHF. All of the data has ...
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Therapeutic effect of Yang-Xue-Qing-Nao granules on sleep dysfunction in Parkinson’s disease
... in detrended fluctuation analysis (DFA) of physical activity with respect to diurnal activity (DA), evening activity (EA), nocturnal activity (NA), Parkinson ’ s disease sleep scale (PDSS) ...
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