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Algorithms, Volume 17, Issue 5

May 2024 - 49 articles

Cover Story: Work sampling is a procedure in which the proportions of shift time spent by workers or machines on different activities (within productive work or losses) are estimated on the basis of a sufficient number of random observations of activities over a selected period of time. The work sampling procedure is well standardized, but improvements can be made in the evaluation of the observations. We present our further development of the decision-making process based on work sampling data. With the correlation analysis introduced, we obtain a first signal that some activities may trigger the occurrence of another activity that may be without added value or represent a loss. It is possible to uncover patterns of behavior that would have been overlooked with the basic method. View this paper
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Articles (49)

  • Article
  • Open Access
3 Citations
1,620 Views
16 Pages

An Integer-Fractional Gradient Algorithm for Back Propagation Neural Networks

  • Yiqun Zhang,
  • Honglei Xu,
  • Yang Li,
  • Gang Lin,
  • Liyuan Zhang,
  • Chaoyang Tao and
  • Yonghong Wu

20 May 2024

This paper proposes a new optimization algorithm for backpropagation (BP) neural networks by fusing integer-order differentiation and fractional-order differentiation, while fractional-order differentiation has significant advantages in describing co...

  • Article
  • Open Access
3 Citations
2,594 Views
16 Pages

18 May 2024

In this paper, we study the knapsack problem with conflict pair constraints. After a thorough literature survey on the topic, our study focuses on the special case of bipartite conflict graphs. For complete bipartite (multipartite) conflict graphs, t...

  • Article
  • Open Access
2 Citations
2,266 Views
23 Pages

16 May 2024

This paper introduces an algorithm to tackle the boundary condition (BC) problem, which has long persisted in the numerical and computational treatment of smoothed particle hydrodynamics (SPH). Central to the BC problem is a need for an effective met...

  • Article
  • Open Access
1,291 Views
13 Pages

16 May 2024

Under a distributed information system, the scale of various operational components such as applications, operating systems, databases, servers, and networks is immense, with intricate access relationships. The silo effect of each professional is pro...

  • Article
  • Open Access
1 Citations
1,300 Views
13 Pages

An Interface to Monitor Process Variability Using the Binomial ATTRIVAR SS Control Chart

  • João Pedro Costa Violante,
  • Marcela A. G. Machado,
  • Amanda dos Santos Mendes and
  • Túlio S. Almeida

16 May 2024

Control charts are tools of paramount importance in statistical process control. They are broadly applied in monitoring processes and improving quality, as they allow the detection of special causes of variation with a significant level of accuracy....

  • Article
  • Open Access
6 Citations
3,636 Views
20 Pages

Motion Correction for Brain MRI Using Deep Learning and a Novel Hybrid Loss Function

  • Lei Zhang,
  • Xiaoke Wang,
  • Michael Rawson,
  • Radu Balan,
  • Edward H. Herskovits,
  • Elias R. Melhem,
  • Linda Chang,
  • Ze Wang and
  • Thomas Ernst

15 May 2024

Purpose: Motion-induced magnetic resonance imaging (MRI) artifacts can deteriorate image quality and reduce diagnostic accuracy, but motion by human subjects is inevitable and can even be caused by involuntary physiological movements. Deep-learning-b...

  • Article
  • Open Access
1 Citations
2,773 Views
17 Pages

15 May 2024

Quantum computing has the potential to solve problems that are currently intractable to classical computers with algorithms like Quantum Phase Estimation (QPE); however, noise significantly hinders the performance of today’s quantum computers....

  • Article
  • Open Access
1,629 Views
21 Pages

15 May 2024

We consider the estimation of the marginal likelihood in Bayesian statistics, with primary emphasis on Gaussian graphical models, where the intractability of the marginal likelihood in high dimensions is a frequently researched problem. We propose a...

  • Article
  • Open Access
3 Citations
1,666 Views
27 Pages

14 May 2024

A double optimal solution (DOS) of a least-squares problem Ax=b,A∈Rq×n with q≠n is derived in an m+1-dimensional varying affine Krylov subspace (VAKS); two minimization techniques exactly determine the m+1 expansion coefficients of the...

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Algorithms - ISSN 1999-4893Creative Common CC BY license