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相关论文: Empirical entropy in context

200 篇论文

We investigate the memory properties of discrete sequences built upon a finite number of states. We find that the block entropy can reliably determine the memory for systems modeled as Markov chains of arbitrary finite order. Further, we…

统计力学 · 物理学 2022-11-21 Juan De Gregorio , David Sanchez , Raul Toral

Information diagram and the I-measure are useful mnemonics where random variables are treated as sets, and entropy and mutual information are treated as a signed measure. Although the I-measure has been successful in machine proofs of…

信息论 · 计算机科学 2023-07-17 Cheuk Ting Li

A pedagogical account of entropy and its history.

物理学史与哲学 · 物理学 2011-09-19 Jeremy Bernstein

Gamma distributions, which contain the exponential as a special case, have a distinguished place in the representation of near-Poisson randomness for statistical processes; typically, they represent distributions of spacings between events…

数学物理 · 物理学 2009-05-22 C. T. J. Dodson

For any Bell locality scenario (or Kochen-Specker noncontextuality scenario), the joint Shannon entropies of local (or noncontextual) models define a convex cone for which the non-trivial facets are tight entropic Bell (or contextuality)…

量子物理 · 物理学 2012-03-15 Rafael Chaves , Tobias Fritz

We normalize the combinatorial Laplacian of a graph by the degree sum, look at its eigenvalues as a probability distribution and then study its Shannon entropy. Equivalently, we represent a graph with a quantum mechanical state and study…

无序系统与神经网络 · 物理学 2012-04-24 Filippo Passerini , Simone Severini

The master equation and, more generally, Markov processes are routinely used as models for stochastic processes. They are often justified on the basis of randomization and coarse-graining assumptions. Here instead, we derive n-th order…

统计力学 · 物理学 2012-09-27 Julian Lee , Steve Pressé

Formalising the confrontation of opinions (models) to observations (data) is the task of Inferential Statistics. Information Theory provides us with a basic functional, the relative entropy (or Kullback-Leibler divergence), an asymmetrical…

信息论 · 计算机科学 2015-03-13 François Bavaud

This study investigates entropy's potential for analyzing scientific research patterns across disciplines. Originating from thermodynamics, entropy now measures uncertainty and diversity in information systems. We examine Shannon Entropy,…

物理与社会 · 物理学 2025-03-27 Yujie Shi , Alex Jie Yang , Sanhong Deng

This letter reports two moment extensions of the entropy of a distribution. By understanding the traditional entropy as the average of the original distribution up to a random variable transformation, the traditional moments equation become…

统计力学 · 物理学 2008-03-25 Luciano da Fontoura Costa

If the von Neumann equation is modified by time dependent statistical weights, the time rate of entropy, the entropy exchange and production of a Schottky system are derived whose Hamiltonian does not contain the interaction with the…

量子物理 · 物理学 2019-01-30 Wolfgang Muschik

Entropy is critically examined as a fundamental concept in contemporary science and informatics. Although the typical Shannon entropy provides a proper framework for describing the canonical ensemble, it fails to represent adequately the…

统计力学 · 物理学 2026-02-23 Roumen Tsekov

Under certain conditions, the rate of increase of the statistical entropy of a simple, fully chaotic, conservative system is known to be given by a single number, characteristic of this system, the Kolmogorov-Sinai entropy rate. This…

统计力学 · 物理学 2019-08-17 V. Latora , M. Baranger , A. Rapisarda , C. Tsallis

We discuss algorithms for estimating the Shannon entropy h of finite symbol sequences with long range correlations. In particular, we consider algorithms which estimate h from the code lengths produced by some compression algorithm. Our…

统计力学 · 物理学 2017-04-24 Thomas Schürmann , Peter Grassberger

Inferring models, predicting the future, and estimating the entropy rate of discrete-time, discrete-event processes is well-worn ground. However, a much broader class of discrete-event processes operates in continuous-time. Here, we provide…

统计力学 · 物理学 2020-05-11 S. E. Marzen , J. P. Crutchfield

A new concept named nonsymmetric entropy which generalizes the concepts of Boltzman's entropy and shannon's entropy, was introduced. Maximal nonsymmetric entropy principle was proven. Some important distribution laws were derived naturally…

信息论 · 计算机科学 2007-07-13 Chengshi Liu

Thermodynamic entropy is determined by a heat measurement through the Clausius equality. The entropy then formalizes a fundamental limitation of operations by the second law of thermodynamics. The entropy is also expressed as the Shannon…

统计力学 · 物理学 2015-06-17 Shin-ichi Sasa

In contrast to their seemingly simple and shared structure of independence and stationarity, L\'evy processes exhibit a wide variety of behaviors, from the self-similar Wiener process to piecewise-constant compound Poisson processes.…

概率论 · 数学 2024-11-14 Julien Fageot , Alireza Fallah , Thibaut Horel

Entropy is a very useful concept from physics that tries to explain how a system behaves from a point of view of the thermodynamics. However, there are two ways to explain entropy, and it depends on if we are studying a microsystem or a…

综合金融 · 定量金融 2024-07-02 Martin Pomares Calero

We introduce the notion of metric entropy for a nonautonomous dynamical system given by a sequence of probability spaces and a sequence of measure-preserving maps between these spaces. This notion generalizes the classical concept of metric…

动力系统 · 数学 2016-11-26 Christoph Kawan