Results 21 to 30 of about 983,616 (223)

BD entropy and Bernis–Friedman entropy [PDF]

open access: yesComptes Rendus. Mathématique, 2018
In this note, we propose in the full generality a link between the BD entropy introduced by D. Bresch andB. Desjardins for the viscous shallow-water equations and the Bernis-Friedman (called BF) dissipative entropyintroduced to study the lubrications equations. Dierent dissipative entropies are obtained playing with the dragterms on the viscous shallow
Bresch, Didier   +4 more
openaire   +7 more sources

Epistasis and Entropy [PDF]

open access: yesPLOS Genetics, 2015
ABSTRACTEpistasis is a key concept in the theory of adaptation. Indicators of epistasis are of interest for large system where systematic fitness measurements may not be possible. Some recent approaches depend on information theory. We show that considering shared entropy for pairs of loci can be misleading.
openaire   +6 more sources

Transfer Entropy [PDF]

open access: yesEntropy, 2018
Statistical relationships among the variables of a complex system reveal a lot about its physical behavior[...]
openaire   +6 more sources

Microcanonical entropy for classical systems [PDF]

open access: yes, 2017
The entropy definition in the microcanonical ensemble is revisited. We propose a novel definition for the microcanonical entropy that resolve the debate on the correct definition of the microcanonical entropy.
Franzosi, Roberto
core   +2 more sources

On defining partition entropy by inequalities [PDF]

open access: yes, 2007
Partition entropy is the numerical metric of uncertainty within a partition of a finite set, while conditional entropy measures the degree of difficulty in predicting a decision partition when a condition partition is provided.
He, Q, Luo, P, Lü, K, Shi, Z, Zhan, G
core   +1 more source

Spin Entropy

open access: yesEntropy, 2022
Two types of randomness are associated with a mixed quantum state: the uncertainty in the probability coefficients of the constituent pure states and the uncertainty in the value of each observable captured by the Born’s rule probabilities. Entropy is a quantification of randomness, and we propose a spin-entropy for the observables of spin pure states ...
Davi Geiger, Zvi M. Kedem
openaire   +4 more sources

Conditional entropy of ordinal patterns [PDF]

open access: yes, 2014
In this paper we investigate a quantity called conditional entropy of ordinal patterns, akin to the permutation entropy. The conditional entropy of ordinal patterns describes the average diversity of the ordinal patterns succeeding a given ordinal ...
Keller, Karsten, Unakafov, Anton M.
core   +1 more source

Generalised exponential families and associated entropy functions

open access: yes, 2008
A generalised notion of exponential families is introduced. It is based on the variational principle, borrowed from statistical physics. It is shown that inequivalent generalised entropy functions lead to distinct generalised exponential families.
Naudts, Jan
core   +3 more sources

Information Equation of State

open access: yes, 2008
Landauer's principle is applied to information in the universe. Once stars began forming, the increasing proportion of matter at high stellar temperatures compensated for the expanding universe to provide a near constant information energy density.
Feynman   +5 more
core   +2 more sources

Naive entropy of dynamical systems [PDF]

open access: yes, 2016
We study an invariant of dynamical systems called naive entropy, which is defined for both measurable and topological actions of any countable group.
Burton, Peter
core   +2 more sources

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