The Structure of Chaos: An Empirical Comparison of Fractal Physiology Complexity Indices Using NeuroKit2 [PDF]
Entropy, 2022 Complexity quantification, through entropy, information theory and fractal dimension indices, is gaining a renewed traction in psychophsyiology, as new measures with promising qualities emerge from the computational and mathematical advances ...
Dominique Makowski +4 more
doaj +2 more sources
Asymmetric Fractal Characteristics and Market Efficiency Analysis of Style Stock Indices [PDF]
Entropy, 2022 As a typical complex system, the stock market has attracted the attention of scholars and investors to comprehensively understand its fractal characteristics and analyze its market efficiency.
Chao Xu +4 more
doaj +2 more sources
Scale-Fractal Detrended Fluctuation Analysis for Fault Diagnosis of a Centrifugal Pump and a Reciprocating Compressor [PDF]
SensorsReciprocating compressors and centrifugal pumps are rotating machines used in industry, where fault detection is crucial for avoiding unnecessary and costly downtime.
Ruben Medina +6 more
doaj +2 more sources
Application of Improved MFDFA and D-S Evidence Theory in Fault Diagnosis
Applied Sciences (Switzerland), 2022 To improve the accuracy of centrifugal pump fault diagnosis, a novel fault diagnosis method based on improved multiple fractal detrended fluctuation analysis (MFDFA), the fusion of multi-sensing information derived from the back propagation (BP) neural ...
Xing Liang
exaly +3 more sources
Multifractal Analysis of Ion-Channel Currents: A Comparative Study of the WTMM and MFDFA Approaches [PDF]
MembranesThe multifractal properties of ion-channel currents recorded from Beta vulgaris L. vacuoles were analyzed using multifractal detrended fluctuation analysis (MFDFA) and the Wavelet Transform Modulus Maxima (WTMM) method.
Janusz Miśkiewicz +3 more
doaj +2 more sources
Climate Change Effects through MFDFA Study of Temperature in Serbia
Atmosphere, 2023 We investigate multifractal properties of daily means of air temperature over the territory of Serbia, by using Multifractal detrended fluctuation analysis.
Borko Stosic +2 more
exaly +3 more sources
ISLAMIC, GREEN, AND CONVENTIONAL CRYPTOCURRENCY MARKET EFFICIENCY DURING THE COVID-19 PANDEMIC
Journal of Islamic Monetary Economics and Finance, 2021 Unlike conventional cryptocurrencies, Islamic ones are new technologies backed by tangible assets and are characterised by their fundamental values. After the COVID-19 outbreak, cryptocurrency responses have shown different behaviour to stock market ...
Emna Mnif, Anis Jarboui
doaj +1 more source
Multifractal analysis of malaria cases in India in a global warming scenario
Journal of Water and Climate Change, 2023 An effort is made to evaluate the multifractal properties of malaria cases in India from 1980 to 2014. The possible changes in these properties in a global warming scenario (during 2015–2049) are also quantified.
Suneet Dwivedi, Shweta Chaturvedi
doaj +1 more source
Fractal and Fractional, 2023 Uncertain systems are those wherein some variability is observed, meaning that different observations of the system will produce different measurements. Studying such systems demands the use of statistical methods over multiple measurements, which allows
Juan Carlos de la Torre +4 more
doaj +1 more source
Fault Feature Extraction Method of Reciprocating Compressor Valve Based on SPA-MF
IEEE Access, 2022 Aiming at the problem that the traditional multifractal detrended fluctuation analysis (MFDFA) using the least squares method to fit the trend term is prone to overfitting and takes a long time, this paper proposes a new non-stationary signal analysis ...
Ying Li +4 more
doaj +1 more source