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Fractional Refined Composite Multiscale Fuzzy Entropy of International Stock Indices [PDF]

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   +12 more sources

Composite Interpolation-Based Multiscale Fuzzy Entropy and Its Application to Fault Diagnosis of Rolling Bearing [PDF]

open access: yesEntropy, 2019
Multiscale fuzzy entropy (MFE), as an enhanced multiscale sample entropy (MSE) method, is an effective nonlinear method for measuring the complexity of time series.
Qingyun Liu   +4 more
doaj   +8 more sources

Improving Multiscale Fuzzy Entropy Robustness in EEG-Based Alzheimer’s Disease Detection via Amplitude Transformation [PDF]

open access: yesSensors
This study investigates the effectiveness of amplitude transformation in enhancing the performance and robustness of Multiscale Fuzzy Entropy for Alzheimer’s disease detection using electroencephalography signals. Multiscale Fuzzy Entropy is a complexity
Pasquale Arpaia   +7 more
doaj   +7 more sources

Variable-Step Multiscale Fuzzy Dispersion Entropy: A Novel Metric for Signal Analysis

open access: yesEntropy, 2023
Fuzzy dispersion entropy (FuzDE) is a newly proposed entropy metric, which combines the superior characteristics of fuzzy entropy (FE) and dispersion entropy (DE) in signal analysis.
Yuxing Li   +4 more
doaj   +7 more sources

Applying Improved Multiscale Fuzzy Entropy for Feature Extraction of MI-EEG [PDF]

open access: yesApplied Sciences, 2017
Electroencephalography (EEG) is considered the output of a brain and it is a bioelectrical signal with multiscale and nonlinear properties. Motor Imagery EEG (MI-EEG) not only has a close correlation with the human imagination and movement intention but ...
Ming-ai Li   +3 more
doaj   +5 more sources

Time-Shift Multiscale Fuzzy Entropy and Laplacian Support Vector Machine Based Rolling Bearing Fault Diagnosis [PDF]

open access: yesEntropy, 2018
Multiscale entropy (MSE), as a complexity measurement method of time series, has been widely used to extract the fault information hidden in machinery vibration signals.
Xiaolong Zhu   +4 more
doaj   +5 more sources

Intelligent Fault Diagnosis of Rolling-Element Bearings Using a Self-Adaptive Hierarchical Multiscale Fuzzy Entropy [PDF]

open access: yesEntropy, 2021
The fuzzy-entropy-based complexity metric approach has achieved fruitful results in bearing fault diagnosis. However, traditional hierarchical fuzzy entropy (HFE) and multiscale fuzzy entropy (MFE) only excavate bearing fault information on different ...
Xiaoan Yan, Yadong Xu, Minping Jia
doaj   +3 more sources

A Refined Composite Multivariate Multiscale Fuzzy Entropy and Laplacian Score-Based Fault Diagnosis Method for Rolling Bearings

open access: yesEntropy, 2017
The vibration signals of rolling bearings are often nonlinear and non-stationary. Multiscale entropy (MSE) has been widely applied to measure the complexity of nonlinear mechanical vibration signals, however, at present only the single channel vibration ...
Jinde Zheng   +5 more
doaj   +4 more sources

Fault Diagnosis of Planetary Gearbox Based on Hierarchical Refined Composite Multiscale Fuzzy Entropy and Optimized LSSVM [PDF]

open access: yesEntropy
Efficient extraction and classification of fault features remain critical challenges in planetary gearbox fault diagnosis. A fault diagnosis framework is proposed that integrates hierarchical refined composite multiscale fuzzy entropy (HRCMFE) for ...
Xin Xia, Xiaolu Wang
doaj   +3 more sources

Evaluation of entropy features and classifier performance in person authentication using resting-state EEG [PDF]

open access: yesFrontiers in Neuroscience
IntroductionResting-state electroencephalogram (EEG) presents a promising biometric modality due to its inherent liveness detection and resistance to spoofing, addressing critical vulnerabilities in conventional systems.
Renyu Yang   +8 more
doaj   +2 more sources

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