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Transfer entropy is a measure of the magnitude and the direction of information flow between jointly distributed stochastic processes. In recent years, its permutation analogues are considered in the literature to estimate the transfer…

混沌动力学 · 物理学 2013-03-12 Taichi Haruna , Kohei Nakajima

In [Haruna, T. and Nakajima, K., 2011. Physica D 240, 1370-1377], the authors introduced the duality between values (words) and orderings (permutations) as a basis to discuss the relationship between information theoretic measures for…

混沌动力学 · 物理学 2015-06-04 Taichi Haruna , Kohei Nakajima

Shannon Entropy is the preeminent tool for measuring the level of uncertainty (and conversely, information content) in a random variable. In the field of communications, entropy can be used to express the information content of given…

信息论 · 计算机科学 2024-11-06 Bill Kay , Audun Myers , Thad Boydston , Emily Ellwein , Cameron Mackenzie , Iliana Alvarez , Erik Lentz

Entropy metrics (for example, permutation entropy) are nonlinear measures of irregularity in time series (one-dimensional data). Some of these entropy metrics can be generalised to data on periodic structures such as a grid or lattice…

组合数学 · 数学 2021-10-22 John Stewart Fabila-Carrasco , Chao Tan , Javier Escudero

We propose a compression-based version of the empirical entropy of a finite string over a finite alphabet. Whereas previously one considers the naked entropy of (possibly higher order) Markov processes, we consider the sum of the…

信息论 · 计算机科学 2011-04-05 Paul M. B. Vitányi

Subshifts of deterministic substitutions are ubiquitous objects in dynamical systems and aperiodic order (the mathematical theory of quasicrystals). Two of their most striking features are that they have low complexity (zero topological…

动力系统 · 数学 2026-01-14 Philipp Gohlke , Andrew Mitchell , Dan Rust , Tony Samuel

The paper makes the observation that all orders of information entropy are equal in signals composed of repeating units of distinct symbols where the units can be classified as a member of a symmetry group. This leads to an improved metric…

信息论 · 计算机科学 2010-07-14 Reginald D. Smith

We consider an isomorphism invariant for measure-preserving systems - types of generalized entropy convergence rates. We show the connections of this invariant with the types of Shannon entropy convergence rates. In the case when they…

动力系统 · 数学 2013-09-25 Fryderyk Falniowski

We introduce a novel entropy-related function, \textit{non-repeatability}, designed to capture dynamical behaviors in complex systems. Its normalized form, \textit{mutability}, has been previously applied in statistical physics as a…

统计力学 · 物理学 2025-04-04 Eugenio E. Vogel , Francisco J. Peña , G. Saravia , P. Vargas

Permutation entropy measures the complexity of deterministic time series via a data symbolic quantization consisting of rank vectors called ordinal patterns or just permutations. The reasons for the increasing popularity of this entropy in…

数据分析、统计与概率 · 物理学 2021-03-08 José M. Amigó , Roberto Dale , Piergiulio Tempesta

We study the permutation complexity of finite-state stationary stochastic processes based on a duality between values and orderings between values. First, we establish a duality between the set of all words of a fixed length and the set of…

混沌动力学 · 物理学 2011-12-13 Taichi Haruna , Kohei Nakajima

We study how the Shannon entropy of sequences produced by an information source converges to the source's entropy rate. We synthesize several phenomenological approaches to applying information theoretic measures of randomness and memory to…

统计力学 · 物理学 2007-05-23 James P. Crutchfield , David P. Feldman

We study a class of dynamical systems generated by random substitutions, which contains both intrinsically ergodic systems and instances with several measures of maximal entropy. In this class, we show that the measures of maximal entropy…

动力系统 · 数学 2026-03-26 Philipp Gohlke , Andrew Mitchell

We show that the typical coordinate-wise encoding of multivariate ergodic source into prescribed alphabets has the entropy profile close to the convolution of the entropy profile of the source and the modular polymatroid that is determined…

信息论 · 计算机科学 2020-04-23 Michal Kupsa

Entropy measures have become increasingly popular as an evaluation metric for complexity in the analysis of time series data, especially in physiology and medicine. Entropy measures the rate of information gain, or degree of regularity in a…

统计方法学 · 统计学 2015-12-03 Chee Chun Gan , Gerard Learmonth

We propose a new interpretation of measures of information and disorder by connecting these concepts to group theory in a new way. Entropy and group theory are connected here by their common relation to sets of permutations. A combinatorial…

信息论 · 计算机科学 2019-11-25 David J. Galas

We address the excess entropy, which is a measure of complexity for stationary time series, from the ordinal point of view. We show that the permutation excess entropy is equal to the mutual information between two adjacent semi-infinite…

混沌动力学 · 物理学 2011-12-13 Taichi Haruna , Kohei Nakajima

Entropy rate of sequential data-streams naturally quantifies the complexity of the generative process. Thus entropy rate fluctuations could be used as a tool to recognize dynamical perturbations in signal sources, and could potentially be…

信息论 · 计算机科学 2014-03-24 Ishanu Chattopadhyay , Hod Lipson

We define a one-parameter family of entropies, each assigning a real number to any probability measure on a compact metric space (or, more generally, a compact Hausdorff space with a notion of similarity between points). These entropies…

度量几何 · 数学 2020-12-17 Tom Leinster , Emily Roff

Around the mean dimensions and rate-distortion functions, using some tools from local entropy theory this paper establishes the following main results: $(1)$ We prove that for non-ergodic measures associated with almost sure processes, the…

动力系统 · 数学 2025-10-10 Rui Yang
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