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Ordinal Pattern Based Entropies and the Kolmogorov–Sinai Entropy: An Update [PDF]

open access: yesEntropy, 2020
Different authors have shown strong relationships between ordinal pattern based entropies and the Kolmogorov−Sinai entropy, including equality of the latter one and the permutation entropy, the whole picture is however far from being complete. This
Tim Gutjahr, Karsten Keller
doaj   +2 more sources

Entropy Profiling: A Reduced—Parametric Measure of Kolmogorov—Sinai Entropy from Short-Term HRV Signal [PDF]

open access: yesEntropy, 2020
Entropy profiling is a recently introduced approach that reduces parametric dependence in traditional Kolmogorov-Sinai (KS) entropy measurement algorithms. The choice of the threshold parameter r of vector distances in traditional entropy computations is
Chandan Karmakar   +2 more
doaj   +2 more sources

A Multiscale Partition-Based Kolmogorov–Sinai Entropy for the Complexity Assessment of Heartbeat Dynamics [PDF]

open access: yesBioengineering, 2022
Background: Several methods have been proposed to estimate complexity in physiological time series observed at different time scales, with a particular focus on heart rate variability (HRV) series.
Andrea Scarciglia   +3 more
doaj   +2 more sources

On Rényi Permutation Entropy [PDF]

open access: yesEntropy, 2021
Among various modifications of the permutation entropy defined as the Shannon entropy of the ordinal pattern distribution underlying a system, a variant based on Rényi entropies was considered in a few papers.
Tim Gutjahr, Karsten Keller
doaj   +2 more sources

Statistical optimization for passive scalar transport: maximum entropy production versus maximum Kolmogorov–Sinai entropy [PDF]

open access: yesNonlinear Processes in Geophysics, 2015
We derive rigorous results on the link between the principle of maximum entropy production and the principle of maximum Kolmogorov–Sinai entropy for a Markov model of the passive scalar diffusion called the Zero Range Process.
M. Mihelich   +3 more
doaj   +8 more sources

Stochastic Adder Circuits with Improved Entropy Output [PDF]

open access: yesEntropy, 2023
Random pulse computing (RPC), the third paradigm along with digital and quantum computing, draws inspiration from biology, particularly the functioning of neurons.
Mateja Batelić, Mario Stipčević
doaj   +2 more sources

Trajectory classification through Freeman's curve encoding and entropic analysis. [PDF]

open access: yesPLoS ONE
The classification of trajectories in two dimensions was done through an entropic analysis of their coded representation. The steps include discretising the trajectory into an 8-symbol code using the Freeman procedure.
Roxana Peña-Mendieta   +5 more
doaj   +2 more sources

Information Dynamics of the Mother–Fetus System Using Kolmogorov–Sinai Entropy Derived from Heart Sounds: A Longitudinal Study from Early Pregnancy to Postpartum [PDF]

open access: yesEntropy
Kolmogorov–Sinai (KS) entropy is an indicator of the chaotic behavior of entire systems from an information-theoretic viewpoint. Here, we used KS entropy values derived from the heart sounds of four fetus–mother pairs to identify the changes in fetal and
Sayuri Ishiyama   +3 more
doaj   +2 more sources

A Benchmark for Entropy Estimators [PDF]

open access: yesEntropy
This study assessed the performance of several entropy estimators for numerical time series and symbolic data on non-trivial one-dimensional dynamical systems whose Kolmogorov–Sinai entropy is known with certified accuracy: recent computer-assisted proof
Lucio M. Calcagnile   +2 more
doaj   +2 more sources

Entanglement Dynamics and Classical Complexity [PDF]

open access: yesEntropy, 2023
We study the dynamical generation of entanglement for a two-body interacting system, starting from a separable coherent state. We show analytically that in the quasiclassical regime the entanglement growth rate can be simply computed by means of the ...
Jiaozi Wang   +3 more
doaj   +2 more sources

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