Results 121 to 130 of about 10,422 (231)

Multifractality in local geomagnetic field at Etna volcano, Sicily (southern Italy) [PDF]

Natural Hazards and Earth System Sciences, 2005
We applied the Multifractal Detrended Fluctuation Analysis (MF-DFA), which allows to detect multifractality in nonstationary signals, to the hourly means of local geomagnetic field recorded at Mt. Etna volcano (southern Italy).
G. Currenti, C. del Negro, V. Lapenna, L. Telesca   +3 more
doaj  

Multifractal analysis of the time series of economic systems [PDF]

Журнал нано- та електронної фізики, 2009
Within the method of the multifractal detrended fluctuation analysis the time series of the currency exchange rate for a period including the world financial crisis is investigated.
I.А. Shuda, V.N. Borisyuk, A.I. Olemskoi, А.А. Bagdasaryan   +3 more
doaj  

A comparative study of multifractal detrended fluctuation analysis and multifractal detrended moving average algorithm to estimate the multifractal spectrum

Acta Physica Sinica, 2015
Multifractal detrended fluctuation analysis (MFDFA) and multifractal detrended moving average (MFDMA) algorithm have been established as two important methods to estimate the multifractal spectrum of the one-dimensional random fractal signals. They have been generalized to deal with two-dimensional and higher-dimensional fractal signals.
null Xi Cai-Ping, null Zhang Shu-Ning, null Xiong Gang, null Zhao Hui-Chang   +3 more
openaire   +1 more source

Analysis of global geomagnetic variability [PDF]

Nonlinear Processes in Geophysics, 2007
The orthogonal field components from global INTERMAGNET magnetometer stations are studied via multifractal detrended fluctuation analysis to determine whether there are clear and consistent regional patterns in the behavior of the fluctuations. There are
V. Anh, Z.-G. Yu, J. A. Wanliss
doaj  

Comparative Multifractal Detrended Fluctuation Analysis of Heavy Ion Interactions at a Few GeV to a Few Hundred GeV

Advances in High Energy Physics, 2016
We have studied the multifractality of pion emission process in 16O-AgBr interactions at 2.1 AGeV  and  60 AGeV, 12C-AgBr  and  24Mg-AgBr interactions at 4.5 AGeV, and 32S-AgBr interactions at 200 AGeV using Multifractal Detrended Fluctuation Analysis ...
Gopa Bhoumik, Argha Deb, Swarnapratim Bhattacharyya, Dipak Ghosh   +3 more
doaj   +1 more source

Nonlinear and multifractal behaviour of atmospheric parameters and particulate matter in South Africa

Discover Geoscience
This study investigates the nonlinear and multifractal behavior of atmospheric parameters and particulate matter (PM10) in South Africa. We employed nonlinear techniques such as Sample Entropy, Lyapunov Exponent, and Correlation Dimension, alongside ...
Samuel Ogunjo, Joshua Akinsusi, Adedayo Adelakun, Ibiyinka Fuwape   +3 more
doaj   +1 more source

Source Of The Multifractality In Exchange Markets: Multifractal Detrended Fluctuations Analysis

Journal of Business & Economics Research (JBER), 2014
In this study, we analyzed the multifractality and the source of multifractality of the returns of GBP/USD, EUR/USD, USD/JPY and USD/CHF currencies. In the examination of multifractality we performed the Multifractal Detrended Fluctuation Analysis (MF-DFA).
openaire   +2 more sources

Analysis of Multifractal and Organization/Order Structure in Suomi-NPP VIIRS Normalized Difference Vegetation Index Series of Wildfire Affected and Unaffected Sites by Using the Multifractal Detrended Fluctuation Analysis and the Fisher-Shannon Analysis. [PDF]

Entropy (Basel), 2020
Ba R, Song W, Lovallo M, Lo S, Telesca L.   +4 more
europepmc   +1 more source

Generating Synthetic Data Using 2D Multifractal Detrended Fluctuation Analysis Generative Adversarial Networks

IEEE Access
A novel 2-dimensional Multifractal Detrended Fluctuation Analysis (2D-MFDFA) as a discriminator for Generative Adversarial Networks (GAN) is presented in this work. The proposed approach demonstrates improved generated data quality at early iterations on
Charudatta Gurudas Korde, K. G. Shreeharsha, R. K. Siddharth, M. H. Vasantha, Y. B. Nithin Kumar   +4 more
doaj   +1 more source

Analysis of Indian Foreign Exchange Markets: A Multifractal Detrended Fluctuation Analysis (MFDFA) Approach

International Journal of Empirical Economics
The objectives of this paper are to analyse the presence of multifractality in daily exchange rates of the US dollar (USD), British Pound (GBP), Euro (EUR), and Japanese Yen (JPY) relative to the Indian Rupee (INR) for a specific period (1999–2018) and ...
Radhika Prosad Datta
doaj   +1 more source