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Entropy, Volume 25, Issue 8

August 2023 - 134 articles

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Cover Story: Let us consider a triangular hypergraph with three vertices and three hyperedges in an n-dim space, n ≥ 3. If we tried to assign 0 and 1 to vertices, so that just one vertex within each of the three hyperedges is assigned 1, we would realise that this is not possible. The hypergraph exhibits a non-Kochen–Specker (KS) contextuality. Why “non-”? Because KS hypergraphs violate the same condition, but each of their hyperedges must contain n vertices. How can we generate non-KS hypergraphs? Via a dimensional upscaling which does not scale with dimension. The minimal number of their hyperedges is ≤ 9 in up to 16-dim spaces. View this paper

Articles (134)

  • Article
  • Open Access
8 Citations
1,702 Views
20 Pages

21 August 2023

In this article, the authors analyzed the nonlinear effects of projective synchronization between coupled memristive neural networks (MNNs) and their applications. Since the complete signal transmission is difficult under parameter mismatch and diffe...

  • Feature Paper
  • Article
  • Open Access
1,793 Views
15 Pages

21 August 2023

Unique digital circuit outputs, considered as physical unclonable function (PUF) circuit outputs, can facilitate a secure and reliable secret key agreement. To tackle noise and high correlations between the PUF circuit outputs, transform coding metho...

  • Article
  • Open Access
2 Citations
2,112 Views
13 Pages

Spreading Dynamics of Capital Flow Transfer in Complex Financial Networks

  • Wenyan Peng,
  • Tingting Chen,
  • Bo Zheng and
  • Xiongfei Jiang

21 August 2023

The financial system, a complex network, operates primarily through the exchange of capital, where the role of information is critical. This study utilizes the transfer entropy method to examine the strength and direction of information flow among di...

  • Article
  • Open Access
5 Citations
1,834 Views
16 Pages

21 August 2023

Response times (RT) distributions are routinely used by psychologists and neuroscientists in the assessment and modeling of human behavior and cognition. The statistical properties of RT distributions are valuable in uncovering unobservable psycholog...

  • Article
  • Open Access
17 Citations
4,026 Views
21 Pages

Comparative Study of Variations in Quantum Approximate Optimization Algorithms for the Traveling Salesman Problem

  • Wenyang Qian,
  • Robert A. M. Basili,
  • Mary Mehrnoosh Eshaghian-Wilner,
  • Ashfaq Khokhar,
  • Glenn Luecke and
  • James P. Vary

21 August 2023

The traveling salesman problem (TSP) is one of the most often-used NP-hard problems in computer science to study the effectiveness of computing models and hardware platforms. In this regard, it is also heavily used as a vehicle to study the feasibili...

  • Article
  • Open Access
2 Citations
1,729 Views
18 Pages

Synergetic Theory of Information Entropy Based on Failure Approach Index for Stability Analysis of Surrounding Rock System

  • Lijun Xiong,
  • Haiping Yuan,
  • Gaoliang Liu,
  • Hengzhe Li,
  • Yangyao Zou,
  • Xiaohu Liu and
  • Xiaoming Li

20 August 2023

It is generally acknowledged that the stability evaluation of surrounding rock denotes nonlinear complex system engineering. In order to accurately and quantitatively assess the safety states of surrounding rock and provide a scientific basis for the...

  • Article
  • Open Access
2 Citations
2,855 Views
19 Pages

19 August 2023

We propose a new agent-based model for studying wealth distribution. We show that a model that links wealth to information (interaction and trade among agents) and to trade advantage is able to qualitatively reproduce real wealth distributions, as we...

  • Article
  • Open Access
2 Citations
1,843 Views
22 Pages

18 August 2023

The variational Bayesian method solves nonlinear estimation problems by iteratively computing the integral of the marginal density. Many researchers have demonstrated the fact its performance depends on the linear approximation in the computation of...

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