Results 1 to 10 of about 22,027,746 (211)

MULTIFRACTAL CROSS WAVELET ANALYSIS [PDF]

open access: yesFractals, 2017
Complex systems are composed of mutually interacting components and the output values of these components usually exhibit long-range cross-correlations. Using wavelet analysis, we propose a method of characterizing the joint multifractal nature of these long-range cross correlations, a method we call multifractal cross wavelet analysis (MFXWT).
ZHI-QIANG JIANG   +3 more
openaire   +3 more sources

Joint multifractal analysis based on the partition function approach: analytical analysis, numerical simulation and empirical application

open access: yesNew Journal of Physics, 2015
Many complex systems generate multifractal time series which are long-range cross-correlated. Numerous methods have been proposed to characterize the multifractal nature of these long-range cross correlations.
Wen-Jie Xie   +4 more
doaj   +1 more source

Multiscale characterization of pore spaces using multifractals analysis of scanning electronic microscopy images of carbonates [PDF]

open access: yesNonlinear Processes in Geophysics, 2011
Pore spaces heterogeneity in carbonates rocks has long been identified as an important factor impacting reservoir productivity. In this paper, we study the heterogeneity of carbonate rocks pore spaces based on the image analysis of scanning electron ...
M. S. Jouini, S. Vega, E. A. Mokhtar
doaj   +1 more source

Research on Multifractal Characteristics of Vehicle Driving Cycles

open access: yesMachines, 2023
Vehicle driving cycles have complex characteristics, but there are few publicly reported methods for their quantitative characterization. This paper innovatively investigates their multifractal characteristics using the fractal theory to characterize ...
Mengting Yuan   +3 more
doaj   +1 more source

Synchronizations in Complex Systems Dynamics Through a Multifractal Procedure

open access: yesEntropy
The dynamics of complex systems often exhibit multifractal properties, where interactions across different scales influence their evolution. In this study, we apply the Multifractal Theory of Motion within the framework of scale relativity theory to ...
Vlad Ghizdovat   +6 more
doaj   +1 more source

Evaluation of the Heterogeneous Spatial Distribution of Population and Stores/Facilities by Multifractal Analysis

open access: yesFrontiers in Physics, 2020
The spatial distribution of a population is not homogeneous—some areas attract many residents, while others do not. The spatial distribution of stores and facilities that have been coevolving with that of the population is also heterogeneous.
Mariko I. Ito, Takaaki Ohnishi
doaj   +1 more source

Distribution of Air Temperature Multifractal Characteristics Over Greece

open access: yesAtmosphere, 2019
In this study, Multifractal Detrended Fluctuation Analysis (MF-DFA) is applied to daily temperature time series (mean, maximum and minimum values) from 22 Greek meteorological stations with the purpose of examining firstly their scaling behavior and then
Nikolaos Kalamaras   +4 more
doaj   +1 more source

On Measures Resisting Multifractal Analysis [PDF]

open access: yes, 2015
Any ergodic measure of a smooth map on a compact manifold has a multifractal spectrum with one point - the dimension of the measure itself - at the diagonal. We will construct examples where this fails in the most drastic way for invariant measures invariant under linear maps of the circle.
Schmeling, Jörg, Seuret, Stéphane
openaire   +2 more sources

Multifractal characterization of gold market: A multifractal detrended fluctuation analysis [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2014
The multifractal detrended fluctuation analysis technique is employed to analyze the time series of gold consumer price index (CPI) and the market trend of three world's highest gold consuming countries, namely China, India and Turkey for the period: 1993-July 2013.
Provash Mali, Amitabha Mukhopadhyay
openaire   +2 more sources

Integrating Multifractal Features into Machine Learning for Improved Prediction

open access: yesFractal and Fractional
This study investigates the multifractal characteristics of the tanker freight market from 1998 to 2024. Using multifractal detrended fluctuation analysis (MF-DFA) and multifractal detrending moving average (MF-DMA), we analyze temporal correlations and ...
Feier Chen   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy