Results 101 to 110 of about 14,770 (221)

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

Abduction and Deduction in Dynamical Cognitive Science

open access: yesTopics in Cognitive Science, Volume 18, Issue 3, July 2026.
Abstract This paper reviews the recent history of a subset of research in dynamical cognitive science, in particular that subset that allies itself with the sciences of complexity and casts cognitive systems as interaction dominant, noncomputational, and nonmodular. I look at this history in the light of C.S.
Anthony Chemero
wiley   +1 more source

Novel multifractal-based classification model for the quality grades of surrounding rock within tunnels

open access: yesUnderground Space
Understanding the variation patterns of tunnel boring machine (TBM) operational parameters is crucial for assessing engineering geological conditions and quality grades of surrounding rock within tunnels.
Junjie Ma   +5 more
doaj   +1 more source

Fluctuating Interfaces in Barotropic Beta‐Plane Turbulence

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Zonal jets manifest themselves as bands with sharp interfaces in the vorticity configuration. We develop an algorithm to track these fluctuating vorticity interfaces and systematically investigate their characteristic spatio‐temporal behaviors.
Sandip Sahoo, Samriddhi Sankar Ray
wiley   +1 more source

Multivariate multifractal analysis [PDF]

open access: yes, 2019
International audienceWe show how a joint multifractal analysis of a collection of signals unravels correlations between the locations of their pointwise singularities. The multivariate multifractal formalism, reformulated in the general setting supplied
Stéphane Seuret   +12 more
core   +1 more source

Multifractal zeta functions [PDF]

open access: yes, 2017
Multifractals have during the past 20 − 25 years been the focus of enormous attention in the mathematical literature. Loosely speaking there are two main ingredients in multifractal analysis: the multifractal spectra and the Renyi dimensions.
Mijović, Vuksan
core   +2 more sources

Multi-Fractal Spectral Analysis of the 1987 Stock Market Crash [PDF]

open access: yes
The multifractal model of asset returns captures the volatility persistence of many financial time series. Its multifractal spectrum computed from wavelet modulus maxima lines provides the spectrum of irregularities in the distribution of market returns ...
CORNELIS A. LOS, ROSSITSA M. YALAMOVA
core  

Multifractality in time series [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2000
22 pages, Revtex, 4 ps figures - To appear J. Phys. A (2000)
openaire   +3 more sources

Multifractal analysis of Power Markets. Some empirical evidence [PDF]

open access: yes
This work is intended to offer a comparative analysis of the statistical properties of hourly prices in the day–ahead electricity markets of several countries.
Marina Resta
core  

Measure representation and multifractal analysis of complete genomes [PDF]

open access: yes, 2001
This paper introduces the notion of measure representation of DNA sequences. \ud Spectral analysis and multifractal analysis are then performed on the measure representations of a large number of complete genomes.\ud The main aim of this paper is to ...
Anh, Vo V., Yu, Zu-Guo, Lau, Ka-Sing
core   +1 more source

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