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相关论文: Long-range correlation and multifractality in Bach…

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Detrended Fluctuation Analysis (DFA), suitable for the analysis of nonstationary time series, is used to investigate power law in some of the Bach's pitches series. Using DFA method, which also is a well-established method for the detection…

计算物理 · 物理学 2008-04-25 G. R. Jafari , P. Pedram , K. Ghafoori Tabrizi

This contribution addresses the question commonly asked in scientific literature about the sources of multifractality in time series. Two primary sources are typically considered. These are temporal correlations and heavy tails in the…

数据分析、统计与概率 · 物理学 2025-01-16 Robert Kluszczyński , Stanisław Drożdż , Jarosław Kwapień , Tomasz Stanisz , Marcin Wątorek

The earth's ionosphere is well recognized as a dynamical system and non-linearly coupled with the magnetosphere above and natural atmosphere below.The shape and time variability of the ionosphere indeed shows chaos, pattern formation,…

地球与行星天体物理 · 物理学 2013-12-13 H. J. Tanna , K. N. Pathak

We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended fluctuation analysis (DFA). We relate our multifractal DFA method to the standard partition…

数据分析、统计与概率 · 物理学 2009-11-07 Jan W. Kantelhardt , Stephan A. Zschiegner , Eva Koscielny-Bunde , Armin Bunde , Shlomo Havlin , H. Eugene Stanley

We examine the scaling regime for the detrended fluctuation analysis (DFA) - the most popular method used to detect the presence of long memory in data and the fractal structure of time series. First, the scaling range for DFA is studied…

数据分析、统计与概率 · 物理学 2015-06-05 Dariusz Grech , Zygmunt Mazur

Multifractal time series analysis is a approach that shows the possible complexity of the system. Nowadays, one of the most popular and the best methods for determining multifractal characteristics is Multifractal Detrended Fluctuation…

统计金融 · 定量金融 2015-10-20 Rafal Rak , Pawel Zięba

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…

Multifractal detrended fluctuation analysis (MFDFA) has become a central method to characterise the variability and uncertainty in empiric time series. Extracting the fluctuations on different temporal scales allows quantifying the strength…

计算物理 · 物理学 2022-01-05 Leonardo Rydin Gorjão , Galib Hassan , Jürgen Kurths , Dirk Witthaut

We use the multifractal detrended fluctuation analysis (MF-DFA) to study the electrical discharge current fluctuations in plasma and show that it has multifractal properties and behaves as a weak anti-correlated process. Comparison of the…

统计力学 · 物理学 2009-04-04 S. Kimiagar , M. Sadegh Movahed , S. Khorram , S. Sobhanian , M. Reza Rahimi Tabar

Based on the mathematical arguments formulated within the Multifractal Detrended Fluctuation Analysis (MFDFA) approach it is shown that in the uncorrelated time series from the Gaussian basin of attraction the effects resembling…

数据分析、统计与概率 · 物理学 2023-03-30 Jarosław Kwapień , Pawel Blasiak , Stanisław Drożdż , Paweł Oświęcimka

We introduce a new method for detection of long-range cross-correlations and multifractality - multifractal height cross-correlation analysis (MF-HXA) - based on scaling of qth order covariances. MF-HXA is a bivariate generalization of the…

统计金融 · 定量金融 2012-05-24 Ladislav Kristoufek

Multifractality in time series analysis characterizes the presence of multiple scaling exponents, indicating heterogeneous temporal structures and complex dynamical behaviors beyond simple monofractal models. In the context of digital…

统计金融 · 定量金融 2025-10-16 Stanisław Drożdż , Robert Kluszczyński , Jarosław Kwapień , Marcin Wątorek

One-dimensional detrended fluctuation analysis (1D DFA) and multifractal detrended fluctuation analysis (1D MF-DFA) are widely used in the scaling analysis of fractal and multifractal time series because of being accurate and easy to…

综合物理 · 物理学 2007-05-23 Gao-Feng Gu , Wei-Xing Zhou

We study quantitatively the level of false multifractal signal one may encounter while analyzing multifractal phenomena in time series within multifractal detrended fluctuation analysis (MF-DFA). The investigated effect appears as a result…

数据分析、统计与概率 · 物理学 2015-06-16 Dariusz Grech , Grzegorz Pamuła

Recently the statistical characterizations of financial markets based on physics concepts and methods attract considerable attentions. We used two possible procedures of analyzing multifractal properties of a time series. The first one uses…

数据分析、统计与概率 · 物理学 2008-12-02 A. Ganchuk , V. Derbentsev , V. Soloviev

Detailed study of multifractal characteristics of the financial time series of asset values and of its returns is performed using a collection of the high frequency Deutsche Aktienindex data. The tail index ($\alpha$), the Renyi exponents…

统计力学 · 物理学 2009-11-07 A. Z. Gorski , S. Drozdz , J. Speth

Multifractal properties of the energy time series of short $\alpha$-helix structures, specifically from a polyalanine family, are investigated through the MF-DFA technique ({\it{multifractal detrended fluctuation analysis}}). Estimates for…

生物物理 · 物理学 2010-01-13 P. H. Figueirêdo , E. Nogueira , M. A. Moret , Sérgio Coutinho

We analyze quantitatively the effect of spurious multifractality induced by the presence of fat-tailed symmetric and asymmetric probability distributions of fluctuations in time series. In the presented approach different kinds of symmetric…

计算金融 · 定量金融 2018-05-31 Rafal Rak , Dariusz Grech

We investigate the presence of residual multifractal background for monofractal signals which appears due to the finite length of the signals and (or) due to the long memory the signals reveal. This phenomenon is investigated numerically…

数据分析、统计与概率 · 物理学 2011-09-27 Dariusz Grech , Grzegorz Pamula

By applying the multifractal detrended fluctuation analysis to the high-frequency tick-by-tick data from Deutsche B\"orse both in the price and in the time domains, we investigate multifractal properties of the time series of logarithmic…

其他凝聚态物理 · 物理学 2009-11-10 P. Oswiecimka , J. Kwapien , S. Drozdz
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