Results 41 to 50 of about 13,661 (279)

Anesthesia Assessment Based on ICA Permutation Entropy Analysis of Two-Channel EEG Signals [PDF]

open access: yes, 2019
Inaccurate assessment may lead to inaccurate levels of dosage given to the patients that may lead to intraoperative awareness that is caused by under dosage during surgery or prolonged recovery in patients that is caused by over dosage after the surgery ...
Sivakumar, Prashanth   +5 more
core   +1 more source

Research on fault identification method based on multi-resolution permutation entropy and ABC-SVM

open access: yesJournal of Applied Science and Engineering, 2022
Aiming at the difficulty of pipeline blockage fault identification, a fault identification method based on multiresolution permutation entropy and artificial bee colony (ABC) algorithm optimized support vector machine (SVM) is proposed.
Jingzong Yang   +2 more
doaj   +1 more source

On integrating size and shape distributions into a spatio-temporal information entropy framework [PDF]

open access: yes, 2019
Understanding the structuration of spatio-temporal information is a common endeavour to many disciplines and application domains, e.g., geography, ecology, urban planning, epidemiology.
Christophe Claramunt   +5 more
core   +1 more source

Permutation Entropy for the Characterisation of Brain Activity Recorded with Magnetoencephalograms in Healthy Ageing

open access: yes, 2019
The characterisation of healthy ageing of the brain could help create a fingerprint of normal ageing that might assist in the early diagnosis of neurodegenerative conditions. This study examined changes in resting state MEG permutation entropy due to age
Shumbayawonda, Elizabeth   +3 more
core   +1 more source

Permutation entropy-based characterization of speckle patterns generated by semiconductor laser light [PDF]

open access: yes, 2023
Semiconductor lasers with optical feedback are stochastic nonlinear systems that can display complex dynamics and abrupt changes when their operation conditions change.
Cristina Masoller   +7 more
core   +1 more source

On the Use of a Complex Indicator of the Stability of Permutation Entropy of Time Series Fragments When Analyzing Infrasound Monitoring Signals of the Altai Republic

open access: yesRussian Journal of Earth Sciences, 2023
This paper discusses one of the approaches that allows us to assess the degree of complexity or randomness of fragments of a time series in order to detect infrasound or geomagnetic signals in the results of observations of the dynamics of the natural or
Kudryavtsev Nikolay   +2 more
doaj   +1 more source

Global Permutation Entropy

open access: yesCoRR
Permutation Entropy, introduced by Bandt and Pompe, is a widely used complexity measure for real-valued time series that is based on the relative order of values within consecutive segments of fixed length. After standardizing each segment to a permutation and computing the frequency distribution of these permutations, Shannon Entropy is then applied ...
Abhijeet Avhale   +3 more
openaire   +2 more sources

Comparative analysis of dynamic state recognition between permutation entropy and weighted permutation entropy

open access: yesJournal of Physics: Conference Series, 2021
Abstract Permutation entropy (PE) and weighted permutation entropy (WPE) are indexes of the complex system. In this paper, the nonlinear sequence of two chaotic states is simulated by Logistic mapping, and the effectiveness of the PE and WPE algorithms in chaotic state recognition is compared and analyzed with different sliding step ...
Wenxiang Luo, Li Wan, Hui Liu
openaire   +1 more source

CEEMDAN-Based Permutation Entropy: A Suitable Feature for the Fault Identification of Spiral-Bevel Gears

open access: yesShock and Vibration, 2019
A spiral-bevel gear is a basic transmission component and is widely used in mechanical equipment; thus, it is important to monitor and diagnose its running state to ensure safe operation of the entire equipment setup.
Lingli Jiang   +4 more
doaj   +1 more source

Spatial and Temporal Entropies in the Spanish Football League: A Network Science Perspective

open access: yesEntropy, 2020
We quantified the spatial and temporal entropy related to football teams and their players by means of a pass-based interaction. First, we calculated the spatial entropy associated to the positions of all passes made by a football team during a match ...
Johann H. Martínez   +5 more
doaj   +1 more source

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