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Entropy, Volume 11, Issue 4

2009 December - 38 articles

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Articles (38)

  • Article
  • Open Access
66 Citations
15,270 Views
25 Pages

Entropy-Based Wavelet De-noising Method for Time Series Analysis

  • Yan-Fang Sang,
  • Dong Wang,
  • Ji-Chun Wu,
  • Qing-Ping Zhu and
  • Ling Wang

22 December 2009

The existence of noise has great influence on the real features of observed time series, thus noise reduction in time series data is a necessary and significant task in many practical applications. When using traditional de-noising methods, the resul...

  • Review
  • Open Access
65 Citations
15,987 Views
48 Pages

Processing Information in Quantum Decision Theory

  • Vyacheslav I. Yukalov and
  • Didier Sornette

14 December 2009

A survey is given summarizing the state of the art of describing information processing in Quantum Decision Theory, which has been recently advanced as a novel variant of decision making, based on the mathematical theory of separable Hilbert spaces....

  • Article
  • Open Access
7 Citations
10,610 Views
18 Pages

11 December 2009

One of the greatest conundrums in semiotics and linguistics is explaining why change occurs in communication systems. The descriptive apparatus of how change occurs has been developed in great detail since at least the nineteenth century, but a viabl...

  • Article
  • Open Access
17 Citations
13,375 Views
13 Pages

8 December 2009

Under which circumstances are variational principles based on entropy production rate useful tools for modeling steady states of electric (gas) discharge systems far from equilibrium? It is first shown how various different approaches, as Steenbeck’s...

  • Article
  • Open Access
1 Citations
11,310 Views
17 Pages

7 December 2009

Systems do not elect thermodynamic pathways on their own. They operate in tandem with their surroundings. Pathway selection and traversal require coordinated work and heat exchanges along with parallel tuning of the system variables. Previous researc...

  • Article
  • Open Access
8 Citations
12,651 Views
24 Pages

4 December 2009

The maximum entropy method is a theoretically sound approach to construct an analytical form for the probability density function (pdf) given a sample of random events. In practice, numerical methods employed to determine the appropriate Lagrange mul...

  • Review
  • Open Access
13 Citations
9,467 Views
21 Pages

Fisher Information and Semiclassical Treatments

  • Flavia Pennini,
  • Gustavo Ferri and
  • Angelo Plastino

3 December 2009

We review here the difference between quantum statistical treatments and semiclassical ones, using as the main concomitant tool a semiclassical, shift-invariant Fisher information measure built up with Husimi distributions. Its semiclassical characte...

  • Communication
  • Open Access
9 Citations
7,158 Views
8 Pages

3 December 2009

The objective of this essay is to reflect on a possible relation between entropy and emergence. A qualitative, relational approach is followed. We begin by highlighting that entropy includes the concept of dispersal, relevant to our enquiry. Emergenc...

  • Article
  • Open Access
6 Citations
10,113 Views
13 Pages

2 December 2009

A set of many identical interacting agents obeying a global additive constraint is considered. Under the hypothesis of equiprobability in the high-dimensional volume delimited in phase space by the constraint, the statistical behavior of a generic ag...

  • Article
  • Open Access
1 Citations
8,275 Views
10 Pages

Calculation of Entropy for a Sinusoid with Beta-Distributed Phase

  • Joseph V. Michalowicz,
  • Colin C. Olson,
  • Frank Bucholtz and
  • Jonathan M. Nichols

2 December 2009

In this paper, an analytical expression is developed for the differential entropy of a sinusoid with a Beta-distributed phase angle. This particular signal model is prevalent in optical communications, however an expression for the associated differe...

  • Article
  • Open Access
17 Citations
8,840 Views
4 Pages

30 November 2009

The principle of maximum entropy production (MEP) is the subject of considerable academic study, but has yet to become remarkable for its practical applications. A tale is told of an instance in which a spin-off from consideration of an MEP-constrain...

  • Article
  • Open Access
101 Citations
16,215 Views
14 Pages

27 November 2009

Is Maximum Entropy Production (MEP) a physical principle? In this paper I tentatively suggest it is not, on the basis that MEP is equivalent to Jaynes’ Maximum Entropy (MaxEnt) inference algorithm that passively translates physical assumptions into m...

  • Article
  • Open Access
28 Citations
9,710 Views
14 Pages

26 November 2009

The method of Generalized Maximum Entropy (GME), proposed in Golan, Judge and Miller (1996), is an information-theoretic approach that is robust to multicolinearity problem. It uses an objective function that is the sum of the entropies for coefficie...

  • Article
  • Open Access
10 Citations
11,914 Views
10 Pages

20 November 2009

The dynamics and statics of flexible polymer chains are based on their conformational entropy, resulting in the properties of isolated polymer chains with any branching potentially being characterized by Gaussian chain models. According to the graph-...

  • Review
  • Open Access
7 Citations
10,365 Views
19 Pages

18 November 2009

For many anatomical and physical reasons animals of different genera use widely different communication strategies. While some are chemical or visual, the most common involve sound or vibration and these signals can carry a large amount of informatio...

  • Article
  • Open Access
9 Citations
12,184 Views
21 Pages

17 November 2009

In this paper, we develop a general theory for the estimation of the transition probabilities of reversible Markov chains using the maximum entropy principle. A broad range of physical models can be studied within this approach. We use one-dimensiona...

  • Review
  • Open Access
658 Citations
31,437 Views
13 Pages

16 November 2009

Maximum entropy (Maxent) modeling has great potential for identifying distributions and habitat selection of wildlife given its reliance on only presence locations. Recent studies indicate Maxent is relatively insensitive to spatial errors associated...

  • Review
  • Open Access
28 Citations
14,112 Views
18 Pages

10 November 2009

In this review we integrate results of long term experimental study on ant “language” and intelligence which were fully based on fundamental ideas of Information Theory, such as the Shannon entropy, the Kolmogorov complexity, and the Shannon’s equati...

  • Article
  • Open Access
98 Citations
15,861 Views
16 Pages

6 November 2009

The benefits are demonstrated of using exergy to understand the efficiencies of electrical power technologies and to assist improvements. Although exergy applications in power systems and electrical technology are uncommon, exergy nevertheless identi...

  • Article
  • Open Access
8 Citations
10,150 Views
9 Pages

5 November 2009

It is known that mechanical work, and in turn electricity, can be produced from a difference in the chemical potential that may result from a salinity gradient. Such a gradient may be found, for instance, in an estuary where a stream of soft water is...

  • Article
  • Open Access
18 Citations
14,446 Views
16 Pages

4 November 2009

In this paper evidence is provided that individual neurons possess language, and that the basic unit for communication consists of two neurons and their entire field of interacting dendritic and synaptic connections. While information processing in t...

  • Article
  • Open Access
2 Citations
9,836 Views
18 Pages

3 November 2009

Current research is probing transport on ever smaller scales. Modeling of the electromagnetic interaction with nanoparticles or small collections of dipoles and its associated energy transport and nonequilibrium characteristics requires a detailed un...

  • Article
  • Open Access
12 Citations
22,286 Views
16 Pages

3 November 2009

The high pay packages of U.S. CEOs have raised serious concerns about what would constitute a fair pay. Since the present economic models do not adequately address this fundamental question, we propose a new theory based on statistical mechanics and...

  • Review
  • Open Access
38 Citations
10,497 Views
35 Pages

2 November 2009

The efficiency of any application involving a liquid spray is known to be highly dependent on the spray characteristics, and mainly, on the drop-diameter distribution. There is therefore a crucial need of models allowing the prediction of this distri...

  • Article
  • Open Access
34 Citations
12,495 Views
14 Pages

A Law of Word Meaning in Dolphin Whistle Types

  • Ramon Ferrer-i-Cancho and
  • Brenda McCowan

30 October 2009

We show that dolphin whistle types tend to be used in specific behavioral contexts, which is consistent with the hypothesis that dolphin whistle have some sort of “meaning”. Besides, in some cases, it can be shown that the behavioral context in which...

  • Article
  • Open Access
33 Citations
14,407 Views
11 Pages

30 October 2009

All real processes generate entropy and the power/exergy loss is usually determined by means of the Gouy-Stodola law. If the system only exchanges heat at the environmental temperature, the Gouy-Stodola law gives the correct loss of power. However, m...

  • Article
  • Open Access
4 Citations
11,118 Views
8 Pages

29 October 2009

A homogeneous solution of a chiral substance is acquired with an overall asymmetry which is expressed by a specific rotation of a linearly polarized light. Such a solution, despite being at a complete equilibrium, stores configurational entropy in a...

  • Article
  • Open Access
7 Citations
8,621 Views
13 Pages

29 October 2009

In this paper we present a simple model to describe a rather general system in a stationary non-equilibrium state, which is an open system traversed by a stationary flux. The probabilistic description is provided by a non-homogeneous Markov chain, wh...

  • Article
  • Open Access
21 Citations
10,350 Views
24 Pages

The Influence of Shape on Parallel Self-Assembly

  • Shuhei Miyashita,
  • Zoltán Nagy,
  • Bradley J. Nelson and
  • Rolf Pfeifer

23 October 2009

Self-assembly is a key phenomenon whereby vast numbers of individual components passively interact and form organized structures, as can be seen, for example, in the morphogenesis of a virus. Generally speaking, the process can be viewed as a spatial...

  • Article
  • Open Access
7 Citations
9,597 Views
9 Pages

22 October 2009

We show that the maximin average redundancy in pattern coding is eventually larger than 1.84 (n/log n)1/3 for messages of length n. This improves recent results on pattern redundancy, although it does not fill the gap between known lower- and upper-b...

  • Article
  • Open Access
2 Citations
9,963 Views
8 Pages

An Application of Entropy in Survey Scale

  • Özlem Ege Oruç,
  • Emel Kuruoğlu and
  • Özgül Vupa

14 October 2009

This study demonstrates an application of entropy for information theory in the field of survey scale. Based on computer anxiety scale we obtain that the desired information may be achieved with fewer questions. In particular, one question is insuffi...

  • Article
  • Open Access
6 Citations
12,046 Views
12 Pages

Landauer’s Principle and Divergenceless Dynamical Systems

  • Claudia Zander,
  • Angel Ricardo Plastino,
  • Angelo Plastino,
  • Montserrat Casas and
  • Sergio Curilef

13 October 2009

Landauer’s principle is one of the pillars of the physics of information. It constitutes one of the foundations behind the idea that “information is physical”. Landauer’s principle establishes the smallest amount of energy that has to be dissipated w...

  • Article
  • Open Access
19 Citations
9,289 Views
26 Pages

12 October 2009

This paper describes the basic ideas behind a novel prediction error parameter identification algorithm exhibiting high robustness with respect to outlying data. Given the low sensitivity to outliers, these can be more easily identified by analysing...

  • Article
  • Open Access
1 Citations
9,918 Views
12 Pages

28 September 2009

We quantify the probability per unit Euclidean-time of reversing the magnetization of a π-Bloch vector, which describes the Ferromagnetic Domain Walls of a Ferromagnetic Nanowire at finite-temperatures. Our approach, based on Langer’s Theory, treats...

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Entropy - ISSN 1099-4300