Results 11 to 20 of about 389,267 (294)

Fractional Refined Composite Multiscale Fuzzy Entropy of International Stock Indices

open access: yesEntropy, 2019
Fractional refined composite multiscale fuzzy entropy (FRCMFE), which aims to relieve the large fluctuation of fuzzy entropy (FuzzyEn) measure and significantly discriminate different short-term financial time series with noise, is proposed to quantify ...
Zhiyong Wu, Wei Zhang
doaj   +2 more sources

A Multiscale Symbolic Dynamic Entropy Analysis of Traffic Flow

open access: yesJournal of Advanced Transportation, 2022
The complexity analysis of traffic flow is important for understanding the property of traffic system. Being good at analyzing the regularity and complexity, multiscale SamEn has attracted much attention and many methods have been proposed for complexity
Zhanyou Cui   +3 more
doaj   +2 more sources

Multiscale Entropy Analysis on Human Operating Behavior

open access: yesEntropy, 2015
By exploiting the statistical analysis method, human dynamics provides new insights to the research of human behavior. In this paper, we analyze the characteristics of the computer operating behavior through a modified multiscale entropy algorithm with both the interval time series and the number series of individuals’ operating behavior been ...
Junshan Pan   +3 more
openaire   +4 more sources

Intelligent Fault Diagnosis of Rolling Bearings Based on a Complete Frequency Range Feature Extraction and Combined Feature Selection Methodology

open access: yesSensors, 2023
The utilization of multiscale entropy methods to characterize vibration signals has proven to be promising in intelligent diagnosis of mechanical equipment.
Zhengkun Xue   +4 more
doaj   +1 more source

Use of Composite Multivariate Multiscale Permutation Fuzzy Entropy to Diagnose the Faults of Rolling Bearing

open access: yesEntropy, 2023
The study focuses on the fault signals of rolling bearings, which are characterized by nonlinearity, periodic impact, and low signal-to-noise ratio.
Qiang Yuan   +5 more
doaj   +1 more source

Rolling Bearing Fault Diagnosis Based on VMD-MPE and PSO-SVM

open access: yesEntropy, 2021
The goal of the paper is to present a solution to improve the fault detection accuracy of rolling bearings. The method is based on variational mode decomposition (VMD), multiscale permutation entropy (MPE) and the particle swarm optimization-based ...
Maoyou Ye, Xiaoan Yan, Minping Jia
doaj   +1 more source

A wavelet leaders model with multiscale entropy measures for diagnosing arrhythmia and congestive heart failure

open access: yesHealthcare Analytics, 2023
This study proposes a wavelet leaders method with multiscale entropy measures to analyze multiscale complexities in electrocardiogram (ECG) signals to characterize arrhythmia (ARR), congestive heart failure (CHF), and normal sinus rhythm (NSR).
Salim Lahmiri
doaj   +1 more source

Multiscale entropy filtering [PDF]

open access: yesSignal Processing, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jean-Luc Starck, Fionn Murtagh
openaire   +3 more sources

Multivariate Multiscale Entropy Analysis [PDF]

open access: yesIEEE Signal Processing Letters, 2012
Multivariate physical and biological recordings are common and their simultaneous analysis is a prerequisite for the understanding of the complexity of underlying signal generating mechanisms. Traditional entropy measures are maximized for random processes and fail to quantify inherent long-range dependencies in real world data, a key feature of ...
Mosabber Uddin Ahmed, Danilo P. Mandic
openaire   +2 more sources

Entropy and Entropy Production in Multiscale Dynamics [PDF]

open access: yesJournal of Non-Equilibrium Thermodynamics, 2019
Abstract Heat conduction is investigated on three levels: equilibrium, Fourier, and Cattaneo. The Fourier level is either the point of departure for investigating the approach to equilibrium or the final stage in the investigation of the approach from the Cattaneo level.
Grmela, Miroslav   +4 more
openaire   +2 more sources

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