Skip to Content

Entropy, Volume 22, Issue 6

2020 June - 117 articles

Cover Story: The Coding Theorem Method (CTM) and Block Decomposition Method (BDM) have been serving the community as alternatives to the popular statistical lossless compression algorithms used to estimate Algorithmic (Kolmogorov) complexity. In this issue, the methods are reviewed and evaluated, and new directions explored. In particular, one direction is where methods of algorithmic information help deal with pressing questions in science related to causality. A new field has been introduced, called Algorithmic Information Dynamics (AID), an algorithmic probabilistic framework for causal discovery and causal analysis. AID helps solve inverse problems using computational tools drawn from algorithmic information based on algorithmic probability with CTM and BDM, enabling the emergence of AID thanks to their sensitivity to small changes suitable for perturbation analysis at the core of AID. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (117)

  • Article
  • Open Access
5 Citations
4,180 Views
29 Pages

26 June 2020

This work is an extension of our earlier article, where a well-known integral representation of the logarithmic function was explored and was accompanied with demonstrations of its usefulness in obtaining compact, easily-calculable, exact formulas fo...

(This article belongs to the Special Issue Information Theory for Communication Systems)
  • Article
  • Open Access
4 Citations
3,315 Views
16 Pages

26 June 2020

A single-input-multiple-output (SIMO) channel is obtained from the use of an array of antennas in the receiver where the same information is transmitted through different sub-channels, and all received sequences are distinctly distorted versions of t...

(This article belongs to the Special Issue Entropy: The Scientific Tool of the 21st Century)
  • Article
  • Open Access
19 Citations
4,541 Views
25 Pages

Generalized Entropies, Variance and Applications

  • Abdolsaeed Toomaj and
  • Antonio Di Crescenzo

26 June 2020

The generalized cumulative residual entropy is a recently defined dispersion measure. In this paper, we obtain some further results for such a measure, in relation to the generalized cumulative residual entropy and the variance of random lifetimes. W...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
2,960 Views
18 Pages

25 June 2020

The problem of determining the best achievable performance of arbitrary lossless compression algorithms is examined, when correlated side information is available at both the encoder and decoder. For arbitrary source-side information pairs, the condi...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
4 Citations
3,915 Views
14 Pages

Optimization of the Casualties’ Treatment Process: Blended Military Experiment

  • Jan Hodický,
  • Dalibor Procházka,
  • Roman Jersák,
  • Petr Stodola and
  • Jan Drozd

25 June 2020

At the battalion level, NATO ROLE1 medical treatment command focuses on the provision of primary health care being the very first physician and higher medical equipment intervention for casualty treatments. ROLE1 has paramount importance in casualty...

(This article belongs to the Special Issue Artificial Intelligence and Computational Methods in the Modeling of Complex Systems)
  • Article
  • Open Access
4 Citations
3,304 Views
20 Pages

Vibrations in CDFW

  • Daniel Soares de Alcantara,
  • Pedro Paulo Balestrassi,
  • José Henrique Freitas Gomes and
  • Carlos Alberto Carvalho Castro

24 June 2020

Continuous drive friction welding is a solid-state welding process that has been experimentally proven to be a fast and reliable method. This is a complex process; deformations in the viscosity of a material alter the friction between the surfaces of...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
17 Citations
4,319 Views
17 Pages

Entropy-Based Estimation of Event-Related De/Synchronization in Motor Imagery Using Vector-Quantized Patterns

  • Luisa Velasquez-Martinez,
  • Julián Caicedo-Acosta and
  • Germán Castellanos-Dominguez

24 June 2020

Assessment of brain dynamics elicited by motor imagery (MI) tasks contributes to clinical and learning applications. In this regard, Event-Related Desynchronization/Synchronization (ERD/S) is computed from Electroencephalographic signals, which show...

(This article belongs to the Special Issue Assessing Complexity in Physiological Systems through Biomedical Signals Analysis)
  • Feature Paper
  • Article
  • Open Access
27 Citations
5,470 Views
20 Pages

24 June 2020

Solar energy is utilized in a combined ejector refrigeration system with an organic Rankine cycle (ORC) to produce a cooling effect and generate electrical power. This study aims at increasing the utilized share of the collected solar thermal energy...

(This article belongs to the Section Thermodynamics)
  • Article
  • Open Access
10 Citations
3,522 Views
15 Pages

23 June 2020

The quality of a manufacturing process can be represented by the complex coupling relationship between quality characteristics, which is defined by the directed weighted network to evaluate the risk of the manufacturing process. A multistage manufact...

  • Feature Paper
  • Article
  • Open Access
37 Citations
5,547 Views
19 Pages

Optimized Piston Motion for an Alpha-Type Stirling Engine

  • Robin Masser,
  • Abdellah Khodja,
  • Mathias Scheunert,
  • Karsten Schwalbe,
  • Andreas Fischer,
  • Raphael Paul and
  • Karl Heinz Hoffmann

23 June 2020

The Stirling engine is one of the most promising devices for the recovery of waste heat. Its power output can be optimized by several means, in particular by an optimized piston motion. Here, we investigate its potential performance improvements in t...

(This article belongs to the Special Issue Finite-Time Thermodynamics)
  • Article
  • Open Access
1 Citations
3,462 Views
18 Pages

23 June 2020

Recent advances in single-molecule science have revealed an astonishing number of details on the microscopic states of molecules, which in turn defined the need for simple, automated processing of numerous time-series data. In particular, large datas...

(This article belongs to the Section Entropy and Biology)
  • Feature Paper
  • Article
  • Open Access
4 Citations
4,160 Views
22 Pages

22 June 2020

The stochastic character of the cosmological constant arising from the non-linear quantum-vacuum Bohm interaction in the framework of the manifestly-covariant theory of quantum gravity (CQG theory) is pointed out. This feature is shown to be consiste...

(This article belongs to the Special Issue Quantum Mechanics and Its Foundations)
  • Article
  • Open Access
3 Citations
7,936 Views
32 Pages

22 June 2020

Models of consciousness are usually developed within physical monist or dualistic frameworks, in which the structure and dynamics of the mind are derived from the workings of the physical brain. Little attention has been given to modelling consciousn...

(This article belongs to the Special Issue Models of Consciousness)
  • Feature Paper
  • Article
  • Open Access
38 Citations
7,406 Views
22 Pages

Large Deviations for Continuous Time Random Walks

  • Wanli Wang,
  • Eli Barkai and
  • Stanislav Burov

22 June 2020

Recently observation of random walks in complex environments like the cell and other glassy systems revealed that the spreading of particles, at its tails, follows a spatial exponential decay instead of the canonical Gaussian. We use the widely appli...

(This article belongs to the Special Issue New Trends in Random Walks)
  • Article
  • Open Access
3 Citations
3,529 Views
10 Pages

Relative Consistency of Sample Entropy Is Not Preserved in MIX Processes

  • Sebastian Żurek,
  • Waldemar Grabowski,
  • Klaudia Wojtiuk,
  • Dorota Szewczak,
  • Przemysław Guzik and
  • Jarosław Piskorski

21 June 2020

Relative consistency is a notion related to entropic parameters, most notably to Approximate Entropy and Sample Entropy. It is a central characteristic assumed for e.g., biomedical and economic time series, since it allows the comparison between diff...

(This article belongs to the Special Issue Assessing Complexity in Physiological Systems through Biomedical Signals Analysis)
  • Article
  • Open Access
17 Citations
4,071 Views
17 Pages

21 June 2020

Biological recognition methods often use biological characteristics such as the human face, iris, fingerprint, and palm print; however, such images often become blurred under the limitation of the complex environment of the underground, which leads t...

  • Article
  • Open Access
136 Citations
14,155 Views
17 Pages

20 June 2020

This paper proposes a speech-based method for automatic depression classification. The system is based on ensemble learning for Convolutional Neural Networks (CNNs) and is evaluated using the data and the experimental protocol provided in the Depress...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
26 Citations
4,792 Views
18 Pages

Exergoeconomic Analysis of Corn Drying in a Novel Industrial Drying System

  • Bin Li,
  • Chengjie Li,
  • Junying Huang and
  • Changyou Li

20 June 2020

The improvement of the design and operation of energy conversion systems is a theme of global concern. As an energy intensive operation, industrial agricultural product drying has also attracted significant attention in recent years. Taking a novel i...

(This article belongs to the Section Thermodynamics)
  • Article
  • Open Access
7 Citations
3,967 Views
39 Pages

20 June 2020

This paper introduces an upper bound on the absolute difference between: ( a ) the cumulative distribution function (CDF) of the sum of a finite number of independent and identically distributed random variables with finite absolute third mom...

(This article belongs to the Special Issue Wireless Networks: Information Theoretic Perspectives)
  • Article
  • Open Access
12 Citations
5,064 Views
18 Pages

20 June 2020

Dempster–Shafer theory has been widely used in many applications, especially in the measurement of information uncertainty. However, under the D-S theory, how to use the belief entropy to measure the uncertainty is still an open issue. In this...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
2,965 Views
14 Pages

Electro-Osmotic Behavior of Polymeric Cation-Exchange Membranes in Ethanol-Water Solutions

  • V. María Barragán,
  • Juan P. G. Villaluenga,
  • Víctor Morales-Villarejo and
  • M. Amparo Izquierdo-Gil

20 June 2020

The aim of this work is to apply linear non-equilibrium thermodynamics to study the electrokinetic properties of three cation-exchange membranes of different structures in ethanol-water electrolyte solutions. To this end, liquid uptake and electro-os...

(This article belongs to the Section Thermodynamics)
  • Article
  • Open Access
2 Citations
4,125 Views
15 Pages

Quantum Photovoltaic Cells Driven by Photon Pulses

  • Sangchul Oh,
  • Jung Jun Park and
  • Hyunchul Nha

20 June 2020

We investigate the quantum thermodynamics of two quantum systems, a two-level system and a four-level quantum photocell, each driven by photon pulses as a quantum heat engine. We set these systems to be in thermal contact only with a cold reservoir w...

  • Feature Paper
  • Article
  • Open Access
5 Citations
6,376 Views
19 Pages

19 June 2020

When a quantum pure state is drawn uniformly at random from a Hilbert space, the state is typically highly entangled. This property of a random state is known as generic entanglement of quantum states and has been long investigated from many perspect...

(This article belongs to the Section Quantum Information)
  • Article
  • Open Access
3 Citations
3,422 Views
18 Pages

Multiscale Entropy Feature Extraction Method of Running Power Equipment Sound

  • Yongjie Zhai,
  • Xu Yang,
  • Yani Peng,
  • Xinying Wang and
  • Kang Bai

19 June 2020

The equipment condition monitoring based on computer hearing is a new pattern recognition approach, and the system formed by it has the advantages of noncontact and strong early warning abilities. Extracting effective features from the sound data of...

  • Article
  • Open Access
3 Citations
3,962 Views
27 Pages

19 June 2020

Exchange-traded funds (ETFs) are one of the most rapidly expanding categories of financial products in Europe. One of the key yet still unanswered questions is whether European ETF markets have reached the size at which they could affect the financia...

(This article belongs to the Special Issue Information Theory and Economic Network)
  • Article
  • Open Access
12 Citations
4,889 Views
22 Pages

Groupwise Non-Rigid Registration with Deep Learning: An Affordable Solution Applied to 2D Cardiac Cine MRI Reconstruction

  • Elena Martín-González,
  • Teresa Sevilla,
  • Ana Revilla-Orodea,
  • Pablo Casaseca-de-la-Higuera and
  • Carlos Alberola-López

19 June 2020

Groupwise image (GW) registration is customarily used for subsequent processing in medical imaging. However, it is computationally expensive due to repeated calculation of transformations and gradients. In this paper, we propose a deep learning (DL)...

(This article belongs to the Special Issue Selected Papers from 37th Annual Conference of Spanish Society of Biomedical Engineering)
  • Article
  • Open Access
26 Citations
9,559 Views
13 Pages

Step by Step Derivation of the Optimum Multistage Compression Ratio and an Application Case

  • Ignacio López-Paniagua,
  • Javier Rodríguez-Martín,
  • Susana Sánchez-Orgaz and
  • Juan José Roncal-Casano

18 June 2020

The optimum pressure ratio for the stages of a multistage compression process is calculated with a well known formula that assigns an equal ratio for all stages, based on the hypotheses that all isentropic efficiencies are also equal. Although the de...

(This article belongs to the Special Issue Thermodynamic Optimization of Complex Energy Systems)
  • Feature Paper
  • Article
  • Open Access
6 Citations
2,997 Views
18 Pages

18 June 2020

The subject of the study was the osmotic volume transport of aqueous CuSO4 and/or ethanol solutions through a selective cellulose acetate membrane (Nephrophan). The effect of concentration of solution components, concentration polarization of solutio...

(This article belongs to the Special Issue Artificial Intelligence and Computational Methods in the Modeling of Complex Systems)
  • Article
  • Open Access
7 Citations
3,462 Views
14 Pages

Stealthy Secret Key Generation

  • Pin-Hsun Lin,
  • Carsten R. Janda,
  • Eduard A. Jorswieck and
  • Rafael F. Schaefer

18 June 2020

In order to make a warden, Willie, unaware of the existence of meaningful communications, there have been different schemes proposed including covert and stealth communications. When legitimate users have no channel advantage over Willie, the legitim...

(This article belongs to the Special Issue Wireless Networks: Information Theoretic Perspectives)
  • Article
  • Open Access
13 Citations
4,286 Views
20 Pages

18 June 2020

We investigate the strength and direction of information flow among economic policy uncertainty (EPU), US imports and exports to China, and the CNY/US exchange rate by using the novel concept of effective transfer entropy (ETE) with a sliding window...

(This article belongs to the Special Issue Processes with Memory in Natural and Social Sciences)
  • Review
  • Open Access
22 Citations
6,164 Views
31 Pages

18 June 2020

The review presents the basics of quantum decision theory, with an emphasis on temporary processes in decision making. The aim is to explain the principal points of the theory. How an operationally-testable, rational choice between alternatives diffe...

(This article belongs to the Special Issue Quantum Models of Cognition and Decision-Making)
  • Article
  • Open Access
17 Citations
4,217 Views
16 Pages

18 June 2020

Wind turbines work in strong background noise, and multiple faults often occur where features are mixed together and are easily misjudged. To extract composite fault of rolling bearings from wind turbines, a new hybrid approach was proposed based on...

  • Article
  • Open Access
11 Citations
5,858 Views
11 Pages

17 June 2020

The maximum entropy principle states that the energy distribution will tend toward a state of maximum entropy under the physical constraints, such as the zero energy at the boundaries and a fixed total energy content. For the turbulence energy spectr...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
38 Citations
6,247 Views
20 Pages

Assessment of Airflow and Oximetry Signals to Detect Pediatric Sleep Apnea-Hypopnea Syndrome Using AdaBoost

  • Jorge Jiménez-García,
  • Gonzalo C. Gutiérrez-Tobal,
  • María García,
  • Leila Kheirandish-Gozal,
  • Adrián Martín-Montero,
  • Daniel Álvarez,
  • Félix del Campo,
  • David Gozal and
  • Roberto Hornero

17 June 2020

The reference standard to diagnose pediatric Obstructive Sleep Apnea (OSA) syndrome is an overnight polysomnographic evaluation. When polysomnography is either unavailable or has limited availability, OSA screening may comprise the automatic analysis...

(This article belongs to the Special Issue Selected Papers from 37th Annual Conference of Spanish Society of Biomedical Engineering)
  • Article
  • Open Access
6 Citations
3,993 Views
16 Pages

Chaos Control and Synchronization of a Complex Rikitake Dynamo Model

  • Wenkai Pang,
  • Zekang Wu,
  • Yu Xiao and
  • Cuimei Jiang

17 June 2020

A novel chaotic system called complex Rikitake system is proposed. Dynamical properties, including symmetry, dissipation, stability of equilibria, Lyapunov exponents and bifurcation, are analyzed on the basis of theoretical analysis and numerical sim...

(This article belongs to the Special Issue Nonlinear Dynamics and Entropy of Complex Systems with Hidden and Self-Excited Attractors II)
  • Article
  • Open Access
8 Citations
3,308 Views
16 Pages

17 June 2020

Time evolution features of kinetic and thermal entropy generation rates in turbulent Rayleigh-Bénard (RB) convection with mixed insulating and conducting boundary conditions at Ra = 109 are numerically investigated using the lattice Boltzmann...

(This article belongs to the Special Issue Statistical Mechanics and Thermodynamics of Liquids and Crystals)
  • Article
  • Open Access
8 Citations
4,435 Views
11 Pages

17 June 2020

In recent years, the concept of “shortcuts to adiabaticity" has been originally proposed to speed up sufficiently slow adiabatic process in various quantum systems without final excitation. Based on the analogy between classical optics and quan...

(This article belongs to the Special Issue Shortcuts to Adiabaticity)
  • Article
  • Open Access
28 Citations
3,531 Views
22 Pages

17 June 2020

In order to have further evidence of the atmospheric oscillation channel of the lithosphere-atmosphere-ionosphere coupling (LAIC), we have studied criticality in global navigation satellite system (GNSS) surface deformation as a possible agent for ex...

(This article belongs to the Special Issue Entropy, Nonlinear Dynamics, and Methods of Complex Systems in Earthquake Physics including Precursory Phenomena II)
  • Review
  • Open Access
61 Citations
14,093 Views
19 Pages

Patient No-Show Prediction: A Systematic Literature Review

  • Danae Carreras-García,
  • David Delgado-Gómez,
  • Fernando Llorente-Fernández and
  • Ana Arribas-Gil

17 June 2020

Nowadays, across the most important problems faced by health centers are those caused by the existence of patients who do not attend their appointments. Among others, these patients cause loss of revenue to the health centers and increase the patient...

(This article belongs to the Section Entropy Reviews)
  • Article
  • Open Access
4 Citations
3,839 Views
15 Pages

Tsallis Entropy for Cross-Shareholding Network Configurations

  • Roy Cerqueti,
  • Giulia Rotundo and
  • Marcel Ausloos

17 June 2020

In this work, we develop the Tsallis entropy approach for examining the cross-shareholding network of companies traded on the Italian stock market. In such a network, the nodes represent the companies, and the links represent the ownership. Within th...

(This article belongs to the Special Issue Complexity in Economic and Social Systems)
  • Article
  • Open Access
30 Citations
4,561 Views
15 Pages

17 June 2020

A theoretical model of an open combined cycle is researched in this paper. In this combined cycle, an inverse Brayton cycle is introduced into regenerative Brayton cycle by resorting to finite-time thermodynamics. The constraints of flow pressure dro...

(This article belongs to the Special Issue Carnot Cycle and Heat Engine Fundamentals and Applications II)
  • Article
  • Open Access
7 Citations
3,608 Views
14 Pages

16 June 2020

It is well known that Markowitz’s mean-variance model is the pioneer portfolio selection model. The mean-variance model assumes that the probability density distribution of returns is normal. However, empirical observations on financial markets...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
4 Citations
3,164 Views
19 Pages

Special Characteristics and Synchronizations of Multi Hybrid-Order Chaotic Systems

  • Jiaxun Liu,
  • Zuoxun Wang,
  • Fangfang Zhang,
  • Yankai Yin and
  • Fengying Ma

16 June 2020

Based on advantages of integer and fractional chaotic systems, hybrid chaotic systems and their definitions and some fundamental concepts are proposed, such as hybrid degree (HD), the lowest order (LO) and the total dimension order (TDO). The prelimi...

  • Article
  • Open Access
10 Citations
4,160 Views
44 Pages

Privacy-Aware Distributed Hypothesis Testing

  • Sreejith Sreekumar,
  • Asaf Cohen and
  • Deniz Gündüz

16 June 2020

A distributed binary hypothesis testing (HT) problem involving two parties, a remote observer and a detector, is studied. The remote observer has access to a discrete memoryless source, and communicates its observations to the detector via a rate-lim...

(This article belongs to the Special Issue Information Theory, Forecasting, and Hypothesis Testing)
  • Article
  • Open Access
21 Citations
5,078 Views
21 Pages

16 June 2020

Power-law distributed cascade failures are well known in power-grid systems. Understanding this phenomena has been done by various DC threshold models, self-tuned at their critical point. Here, we attempt to describe it using an AC threshold model, w...

(This article belongs to the Special Issue Dynamic Processes on Complex Networks)
  • Article
  • Open Access
21 Citations
5,167 Views
17 Pages

16 June 2020

Understanding the underlying mechanisms behind protein allostery and non-additivity of substitution outcomes (i.e., epistasis) is critical when attempting to predict the functional impact of mutations, particularly at non-conserved sites. In an effor...

(This article belongs to the Special Issue Information Theory in Molecular Evolution: From Models to Structures and Dynamics)
  • Article
  • Open Access
3 Citations
3,564 Views
32 Pages

16 June 2020

This paper investigates the achievable per-user degrees-of-freedom (DoF) in multi-cloud based sectored hexagonal cellular networks (M-CRAN) at uplink. The network consists of N base stations (BS) and K ≤ N base band unit pools (BBUP), whic...

(This article belongs to the Special Issue Wireless Networks: Information Theoretic Perspectives)
  • Feature Paper
  • Article
  • Open Access
20 Citations
3,407 Views
13 Pages

15 June 2020

Landauer’s principle says that, in principle, a computation can be performed without consumption of work, provided no information is erased during the computational process. This principle can be introduced into endoreversible models of thermod...

(This article belongs to the Special Issue Finite-Time Thermodynamics)
  • Article
  • Open Access
10 Citations
5,229 Views
14 Pages

15 June 2020

Although linear regression models are fundamental tools in statistical science, the estimation results can be sensitive to outliers. While several robust methods have been proposed in frequentist frameworks, statistical inference is not necessarily s...

(This article belongs to the Special Issue Bayesian Inference and Computation)
  • Article
  • Open Access
10 Citations
4,228 Views
22 Pages

Grey-Wolf-Based Wang’s Demons for Retinal Image Registration

  • Sayan Chakraborty,
  • Ratika Pradhan,
  • Amira S. Ashour,
  • Luminita Moraru and
  • Nilanjan Dey

15 June 2020

Image registration has an imperative role in medical imaging. In this work, a grey-wolf optimizer (GWO)-based non-rigid demons registration is proposed to support the retinal image registration process. A comparative study of the proposed GWO-based d...

(This article belongs to the Section Multidisciplinary Applications)

of 3

XFacebookLinkedIn
Entropy - ISSN 1099-4300