Results 21 to 30 of about 2,434,968 (243)

Feature Extraction of Ship-Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

open access: yesEntropy, 2016
In order to solve the problem of feature extraction of underwater acoustic signals in complex ocean environment, a new method for feature extraction from ship-radiated noise is presented based on empirical mode decomposition theory and permutation ...
Yu-Xing Li   +3 more
doaj   +1 more source

Non-Monotonic Complexity of Stochastic Model of the Channel Gating Dynamics

open access: yesEntropy, 2023
The simple model of an ionic current flowing through a single channel in a biological membrane is used to depict the complexity of the corresponding empirical data underlying different internal constraints and thermal fluctuations. The residence times of
Lukasz Machura   +3 more
doaj   +1 more source

Integrable multi-phase thermodynamic systems and Tsallis' composition rule [PDF]

open access: yes, 2014
We derive a class of equations of state for a multi-phase thermodynamic system associated with a finite set of order parameters that satisfy an integrable system of hydrodynamic type. As particular examples, we discuss one-phase systems such as the van
de Nittis, Giuseppe   +2 more
core   +1 more source

Large deviations for empirical entropies of Gibbsian sources

open access: yes, 2005
19 pages; revised version;The entropy of an ergodic finite-alphabet process can be computed from a single typical sample path x_1^n using the entropy of the k-block empirical probability and letting k grow with $n$ roughly like log n.
Gabrielli, D., Chazottes, J. -R.
core   +2 more sources

Inequalities for entropies and dimensions [PDF]

open access: yes, 2023
International audienceWe show that linear inequalities for entropies have a natural geometric interpretation in terms of Hausdorff and packing dimensions, using the point-to-set principle and known results about inequalities for complexities, entropies ...
Shen, Alexander
core   +2 more sources

Entropy in the Tangled Nature Model of Evolution

open access: yesEntropy, 2017
Applications of entropy principles to evolution and ecology are of tantamount importance given the central role spatiotemporal structuring plays in both evolution and ecological succession.
Ty N. F. Roach   +4 more
doaj   +1 more source

Application of Entropy Measures on Intrinsic Mode Functions for the Automated Identification of Focal Electroencephalogram Signals

open access: yesEntropy, 2015
The brain is a complex structure made up of interconnected neurons, and its electrical activities can be evaluated using electroencephalogram (EEG) signals. The characteristics of the brain area affected by partial epilepsy can be studied using focal and
Rajeev Sharma   +2 more
doaj   +1 more source

Automated Emotion Identification Using Fourier–Bessel Domain-Based Entropies

open access: yesEntropy, 2022
Human dependence on computers is increasing day by day; thus, human interaction with computers must be more dynamic and contextual rather than static or generalized.
Aditya Nalwaya   +2 more
doaj   +1 more source

Entropies and Logarithms [PDF]

open access: yes, 2022
Here we assume a discrete random variable, possessing a one-to-one correspondence with the set of natural numbers. Its Shannon entropy is considered and some distributions, obtained by means of the Maximum Entropy Principle, will be discussed too.
Sparavigna, Amelia Carolina   +1 more
core   +1 more source

Research of Planetary Gear Fault Diagnosis Based on Permutation Entropy of CEEMDAN and ANFIS

open access: yesSensors, 2018
For planetary gear has the characteristics of small volume, light weight and large transmission ratio, it is widely used in high speed and high power mechanical system. Poor working conditions result in frequent failures of planetary gear.
Moshen Kuai   +3 more
doaj   +1 more source

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