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Mathematical and Computational Applications, Volume 29, Issue 3

June 2024 - 17 articles

Cover Story: Nuclear abnormalities in avian erythrocytes have been used as biomarkers of genotoxicity in several species. Deep learning can be used in this context to improve standardization in identifying biological configurations of medical and veterinary importance. In this study, we present a deep learning model for identifying and classifying abnormal shapes in erythrocyte nuclei of the Kelp Gull. We trained convolutional neural networks (ResNet34 and ResNet50) to obtain models capable of detecting and classifying these abnormalities. The analysis was performed at three discrimination levels of classification, with broad categories subdivided into increasingly specific subcategories. The results evidenced a fast, efficient and standardized approach that could be replicated in similar contexts. View this paper
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Articles (17)

  • Article
  • Open Access
1,658 Views
15 Pages

This paper introduces a dynamic mechanism design tailored for uncertain environments where incentive schemes are challenged by the inability to observe players’ actions, known as moral hazard. In these scenarios, the system operates as a Markov...

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

Leukemia is a form of blood cancer that results in an increase in the number of white blood cells in the body. The correct identification of leukemia at any stage is essential. The current traditional approaches rely mainly on field experts’ kn...

  • Article
  • Open Access
5 Citations
21,767 Views
22 Pages

The S&P 500 Index is considered the most popular trading instrument in financial markets. With the rise of cryptocurrencies over the past few years, Bitcoin has grown in popularity and adoption. This study analyzes the daily return distribution o...

  • Article
  • Open Access
1,387 Views
22 Pages

A one-dimensional model for fluid and solute transport in poroelastic materials (PEMs) is studied. Although the model was recently derived and some exact solutions, in particular steady-state solutions and their applications, were studied, special ca...

  • Article
  • Open Access
2 Citations
3,211 Views
21 Pages

The widespread availability of tools to collect and share spatial data enables us to produce a large amount of geographic information on a daily basis. This enormous production of spatial data requires scalable data management systems. Geospatial arc...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,137 Views
13 Pages

Integrating Deep Learning into Genotoxicity Biomarker Detection for Avian Erythrocytes: A Case Study in a Hemispheric Seabird

  • Martín G. Frixione,
  • Facundo Roffet,
  • Miguel A. Adami,
  • Marcelo Bertellotti,
  • Verónica L. D’Amico,
  • Claudio Delrieux and
  • Débora Pollicelli

Recently, nuclear abnormalities in avian erythrocytes have been used as biomarkers of genotoxicity in several species. Anomalous shapes are usually detected in the nuclei by means of microscopy inspection. However, due to inter- and intra-observer va...

  • Review
  • Open Access
5 Citations
4,684 Views
33 Pages

A Review on Large-Scale Data Processing with Parallel and Distributed Randomized Extreme Learning Machine Neural Networks

  • Elkin Gelvez-Almeida,
  • Marco Mora,
  • Ricardo J. Barrientos,
  • Ruber Hernández-García,
  • Karina Vilches-Ponce and
  • Miguel Vera

The randomization-based feedforward neural network has raised great interest in the scientific community due to its simplicity, training speed, and accuracy comparable to traditional learning algorithms. The basic algorithm consists of randomly deter...

  • Article
  • Open Access
1,709 Views
13 Pages

A numerical method is used to solve the thermal analysis of natural convection in enclosures. This paper proposes the use of an implicit artificial-compressibility model in conjunction with the Radial Point Interpolation Meshless (RPIM) method to mim...

  • Article
  • Open Access
5 Citations
2,585 Views
15 Pages

Detailed Investigation of the Eddy Current and Core Losses in Coaxial Magnetic Gears through a Two-Dimensional Analytical Model

  • Nikolina Nikolarea,
  • Panteleimon Tzouganakis,
  • Vasilios Gakos,
  • Christos Papalexis,
  • Antonios Tsolakis and
  • Vasilios Spitas

This work introduces a 2D model that calculates power losses in coaxial magnetic gears (CMGs). The eddy current losses of the magnets are computed analytically, whereas the core losses of the ferromagnetic segments are computed using an analytical&nd...

  • Article
  • Open Access
11 Citations
5,885 Views
27 Pages

This study explores trust dynamics within online social networks, blending social science theories with advanced machine-learning (ML) techniques. We examine trust’s multifaceted nature—definitions, types, and mechanisms for its establish...

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Math. Comput. Appl. - ISSN 2297-8747