Results 11 to 20 of about 1,519 (247)

A Comparison of Multiscale Permutation Entropy Measures in On-Line Depth of Anesthesia Monitoring. [PDF]

open access: yesPLoS ONE, 2016
OBJECTIVE:Multiscale permutation entropy (MSPE) is becoming an interesting tool to explore neurophysiological mechanisms in recent years. In this study, six MSPE measures were proposed for on-line depth of anesthesia (DoA) monitoring to quantify the ...
Cui Su   +5 more
doaj   +7 more sources

Fault Diagnosis for Rolling Element Bearings Based on Feature Space Reconstruction and Multiscale Permutation Entropy [PDF]

open access: yesEntropy, 2019
Aimed at distinguishing different fault categories of severity of rolling bearings, a novel method based on feature space reconstruction and multiscale permutation entropy is proposed in the study.
Jianzhong Zhou   +2 more
exaly   +5 more sources

Multiscale Weighted Permutation Entropy Analysis of Schizophrenia Magnetoencephalograms [PDF]

open access: yesEntropy, 2022
Schizophrenia is a neuropsychiatric disease that affects the nonlinear dynamics of brain activity. The primary objective of this study was to explore the complexity of magnetoencephalograms (MEG) in patients with schizophrenia.
Dengxuan Bai, Wenpo Yao
exaly   +6 more sources

Bearing Fault Diagnosis Based on Multiscale Permutation Entropy and Support Vector Machine [PDF]

open access: yesEntropy, 2012
Bearing fault diagnosis has attracted significant attention over the past few decades. It consists of two major parts: vibration signal feature extraction and condition classification for the extracted features.
Shuen-De Wu   +2 more
exaly   +6 more sources

Composite Multiscale Transition Permutation Entropy-Based Fault Diagnosis of Bearings

open access: yesSensors, 2022
When considering the transition probability matrix of ordinal patterns, transition permutation entropy (TPE) can effectively extract fault features by quantifying the irregularity and complexity of signals.
Tiangang Zou, Yongbo Li, Gui Lin
exaly   +6 more sources

Multiscale permutation Rényi entropy and its application for EEG signals. [PDF]

open access: yesPLoS ONE, 2018
There is considerable interest in analyzing the complexity of electroencephalography (EEG) signals. However, some traditional complexity measure algorithms only quantify the complexities of signals, but cannot discriminate different signals very well. To
Yinghuang Yin, Kehui Sun, Shaobo He
doaj   +5 more sources

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
exaly   +4 more sources

On the Genuine Relevance of the Data-Driven Signal Decomposition-Based Multiscale Permutation Entropy. [PDF]

open access: yesEntropy (Basel), 2022
Ordinal pattern-based approaches have great potential to capture intrinsic structures of dynamical systems, and therefore, they continue to be developed in various research fields. Among these, the permutation entropy (PE), defined as the Shannon entropy of ordinal probabilities, is an attractive time series complexity measure.
Jabloun M, Ravier P, Buttelli O.
europepmc   +5 more sources

On the Statistical Properties of Multiscale Permutation Entropy: Characterization of the Estimator's Variance. [PDF]

open access: yesEntropy (Basel), 2019
Permutation Entropy (PE) and Multiscale Permutation Entropy (MPE) have been extensively used in the analysis of time series searching for regularities. Although PE has been explored and characterized, there is still a lack of theoretical background regarding MPE. Therefore, we expand the available MPE theory by developing an explicit expression for the
Dávalos A   +3 more
europepmc   +6 more sources

A New Bearing Fault Diagnosis Method Based on Fine-to-Coarse Multiscale Permutation Entropy, Laplacian Score and SVM

open access: yesIEEE Access, 2019
Fault diagnosis of rotating machinery is vital to identify incipient failures and avoid unexpected downtime in industrial systems. This paper proposes a new rolling bearing fault diagnosis method by integrating the fine-to-coarse multiscale permutation ...
Zhiqiang Huo   +2 more
exaly   +6 more sources

Home - About - Disclaimer - Privacy