Results 61 to 70 of about 750,957 (181)

A Characterization of Entropy in Terms of Information Loss

Entropy, 2011
There are numerous characterizations of Shannon entropy and Tsallis entropy as measures of information obeying certain properties. Using work by Faddeev and Furuichi, we derive a very simple characterization.
Tom Leinster, John C. Baez, Tobias Fritz
doaj   +1 more source

Entropy exchange, coherent information and concurrence

, 2007
For a simple model we derive analytic expressions of entropy exchange and coherent information, from which relations between them and the concurrence are drawn. We find that in the quantum evolution the entropy exchange exhibits behavior \textsl{opposite}
Xiang, Yang, Xiong, Shi-Jie
core   +1 more source

Paradox of entropy: a bit of Information without energy

Entropie, 2022
Jean Argouarc’h
doaj   +1 more source

Information Fusion in a Multi-Source Incomplete Information System Based on Information Entropy

Entropy, 2017
As we move into the information age, the amount of data in various fields has increased dramatically, and data sources have become increasingly widely distributed.
Mengmeng Li, Xiaoyan Zhang
doaj   +1 more source

A Unifying Variational Perspective on Some Fundamental Information Theoretic Inequalities [PDF]

, 2016
This paper proposes a unifying variational approach for proving and extending some fundamental information theoretic inequalities. Fundamental information theory results such as maximization of differential entropy, minimization of Fisher information ...
Park, Sangwoo, Qaraqe, Khalid, Serpedin, Erchin   +2 more
core  

An information fractal dimensional relative entropy

AIP Advances
Shannon entropy is used to measure information uncertainty, while the information dimension is used to measure information complexity. Given two probability distributions, the difference can be measured by relative entropy. However, the existing relative
Jingyou Wu
doaj   +1 more source

Entropy/information flux in Hawking radiation

Physics Letters B, 2018
Blackbody radiation contains (on average) an entropy of 3.9±2.5 bits per photon. If the emission process is unitary, then this entropy is exactly compensated by “hidden information” in the correlations.
Ana Alonso-Serrano, Matt Visser
doaj   +1 more source

Improved method for detecting weak abrupt information based on permutation entropy

Advances in Mechanical Engineering, 2017
As a dynamic detecting method for abrupt information, permutation entropy could effectively reflect the subtle change in time series data, which is also simple and can be computed conveniently.
Yongjun Shen, Junfeng Wang, Shaopu Yang
doaj   +1 more source

Relative information entropy in cosmology: The problem of information entanglement

Physics Letters B, 2016
The necessary information to distinguish a local inhomogeneous mass density field from its spatial average on a compact domain of the universe can be measured by relative information entropy.
Viktor G. Czinner, Filipe C. Mena
doaj   +1 more source

Assessment of the quality of educational portals

Открытое образование (Москва), 2017
The article describes the results of theoretical and experimental studies on the evaluation of the quality of educational information placed on information and educational portals.
R. G. Bolbakov, V. Y. Tsvetkov
doaj   +1 more source