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Entropy, Volume 24, Issue 8

August 2022 - 161 articles

Cover Story: In the article by Sabeti et al., a new information theoretic anomaly detector for time series is introduced. The method is based on detecting changes in the compressability of a test segment of the time series as measured by the difference between complexities of a typical encoder and a universal encoder. The typical and universal encoders are respectively implemented with a tree-structured pattern dictionary, trained on an earlier segment of the time series, and a Lempel–Ziv encoder. The anomaly detector is illustrated for a chaotic time series with model shift and for early detection of anomalous heart rates and skin temperatures of patients after exposure to a respiratory virus. View this paper
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Articles (161)

  • Article
  • Open Access
7 Citations
3,577 Views
17 Pages

Design of DNA Storage Coding with Enhanced Constraints

  • Xiangjun Li,
  • Shihua Zhou and
  • Lewang Zou

19 August 2022

Traditional storage media have been gradually unable to meet the needs of data storage around the world, and one solution to this problem is DNA storage. However, it is easy to make errors in the subsequent sequencing reading process of DNA storage c...

  • Article
  • Open Access
5 Citations
2,798 Views
14 Pages

Heat Transfer Analysis between R744 and HFOs inside Plate Heat Exchangers

  • Anas F. A. Elbarghthi,
  • Mohammad Yousef Hdaib and
  • Václav Dvořák

18 August 2022

Plate heat exchangers (PHE) are used for a wide range of applications, thus utilizing new and unique heat sources is of crucial importance. R744 has a low critical temperature, which makes its thermophysical properties variation smoother than other s...

  • Feature Paper
  • Article
  • Open Access
9 Citations
3,911 Views
22 Pages

On the Spatial Distribution of Temporal Complexity in Resting State and Task Functional MRI

  • Amir Omidvarnia,
  • Raphaël Liégeois,
  • Enrico Amico,
  • Maria Giulia Preti,
  • Andrew Zalesky and
  • Dimitri Van De Ville

18 August 2022

Measuring the temporal complexity of functional MRI (fMRI) time series is one approach to assess how brain activity changes over time. In fact, hemodynamic response of the brain is known to exhibit critical behaviour at the edge between order and dis...

  • Article
  • Open Access
5 Citations
2,598 Views
15 Pages

An Internet-Oriented Multilayer Network Model Characterization and Robustness Analysis Method

  • Yongheng Zhang,
  • Yuliang Lu,
  • Guozheng Yang,
  • Dongdong Hou and
  • Zhihao Luo

18 August 2022

The Internet creates multidimensional and complex relationships in terms of the composition, application and mapping of social users. Most of the previous related research has focused on the single-layer topology of physical device networks but ignor...

  • Article
  • Open Access
1 Citations
2,164 Views
12 Pages

18 August 2022

Focusing on the dynamics of quantumness in ensembles, we propose a framework to qualitatively and quantitatively characterize quantum channels from the perspective of the amount of quantumness in ensembles that a quantum channel can induce or reduce....

  • Article
  • Open Access
10 Citations
3,732 Views
17 Pages

18 August 2022

Privacy-preserving machine learning has become an important study at present due to privacy policies. However, the efficiency gap between the plain-text algorithm and its privacy-preserving version still exists. In this paper, we focus on designing a...

  • Article
  • Open Access
7 Citations
2,119 Views
22 Pages

Effective Gibbs State for Averaged Observables

  • Alexander Evgen’evich Teretenkov

18 August 2022

We introduce the effective Gibbs state for the observables averaged with respect to fast free dynamics. We prove that the information loss due to the restriction of our measurement capabilities to such averaged observables is non-negative and discuss...

  • Article
  • Open Access
3 Citations
3,400 Views
27 Pages

17 August 2022

We present a comprehensive simulation study of the Newtonian and quantum model of a Stern–Gerlach experiment with cold neutrons. By solving Newton’s equation of motion and the time-dependent Pauli equation for a wide range of uniform magn...

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Entropy - ISSN 1099-4300Creative Common CC BY license