You are currently viewing a new version of our website. To view the old version click .

Entropy, Volume 23, Issue 9

September 2021 - 139 articles

Cover Story: The Schrödinger bridge problem (SBP) finds the most likely stochastic evolution between two probability distributions given a prior stochastic evolution. As well as applications in the natural sciences, problems of this kind have important applications in machine learning, such as dataset alignment and hypothesis testing. While the theory behind this problem is relatively mature, scalable numerical recipes to estimate the Schrödinger bridge remain an active area of research. We prove an equivalence between the SBP and maximum likelihood estimation enabling direct application of successful machine learning techniques. We propose a numerical procedure to estimate SBPs using Gaussian process regression and demonstrate the practical use of our approach in numerical simulations and experiments. 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 (139)

  • Article
  • Open Access
6 Citations
2,914 Views
21 Pages

21 September 2021

A large amount of semantic content is generated during designer collaboration in open-source projects (OSPs). Based on the characteristics of knowledge collaboration behavior in OSPs, we constructed a directed, weighted, semantic-based knowledge coll...

  • Article
  • Open Access
1 Citations
2,862 Views
16 Pages

21 September 2021

In this work, a Korean peninsula earthquake network, constructed via event-sequential linking known as the Abe–Suzuki method, was investigated in terms of network properties. A significance test for these network properties was performed via comparis...

  • Article
  • Open Access
4 Citations
3,654 Views
18 Pages

Enhanced Directed Random Walk for the Identification of Breast Cancer Prognostic Markers from Multiclass Expression Data

  • Hui Wen Nies,
  • Mohd Saberi Mohamad,
  • Zalmiyah Zakaria,
  • Weng Howe Chan,
  • Muhammad Akmal Remli and
  • Yong Hui Nies

20 September 2021

Artificial intelligence in healthcare can potentially identify the probability of contracting a particular disease more accurately. There are five common molecular subtypes of breast cancer: luminal A, luminal B, basal, ERBB2, and normal-like. Previo...

  • Article
  • Open Access
7 Citations
2,820 Views
19 Pages

20 September 2021

As an extension of the support vector machine, support vector regression (SVR) plays a significant role in image denoising. However, due to ignoring the spatial distribution information of noisy pixels, the conventional SVR denoising model faces the...

  • Article
  • Open Access
21 Citations
5,118 Views
16 Pages

20 September 2021

The global economy is under great shock again in 2020 due to the COVID-19 pandemic; it has not been long since the global financial crisis in 2008. Therefore, we investigate the evolution of the complexity of the cryptocurrency market and analyze the...

  • Article
  • Open Access
1 Citations
3,616 Views
18 Pages

Model for Risk Calculation and Reliability Comparison of Level Crossings

  • Pamela Ercegovac,
  • Gordan Stojić,
  • Miloš Kopić,
  • Željko Stević,
  • Feta Sinani and
  • Ilija Tanackov

19 September 2021

There is not a single country in the world that is so rich that it can remove all level crossings or provide their denivelation in order to absolutely avoid the possibility of accidents at the intersections of railways and road traffic. In the Republ...

  • Article
  • Open Access
1 Citations
2,937 Views
19 Pages

19 September 2021

Mode collapse has always been a fundamental problem in generative adversarial networks. The recently proposed Zero Gradient Penalty (0GP) regularization can alleviate the mode collapse, but it will exacerbate a discriminator’s misjudgment problem, th...

  • Article
  • Open Access
13 Citations
3,469 Views
15 Pages

18 September 2021

Massive droplets can be generated to form two-phase flow in steam turbines, leading to erosion issues to the blades and reduces the reliability of the components. A condensing two-phase flow model was developed to assess the flow structure and loss c...

  • Article
  • Open Access
10 Citations
2,673 Views
19 Pages

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

  • Xian Ma,
  • Yongxian Wang,
  • Xiaoqian Zhu,
  • Wei Liu,
  • Wenbin Xiao and
  • Qiang Lan

18 September 2021

The accuracy and efficiency of sound field calculations highly concern issues of hydroacoustics. Recently, one-dimensional spectral methods have shown high-precision characteristics when solving the sound field but can solve only simplified models of...

of 14

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Entropy - ISSN 1099-4300