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Algorithms, Volume 15, Issue 1

January 2022 - 26 articles

Cover Story: We proposed a method to transform EEG data into a deep latent space to classify PD subjects. We first used general orthogonalized directed coherence to compute the directional connectivity between EEG channels, and then converted the DC maps into 2D images. We then used VGG-16 architecture as our pre-trained model, used the weights of convolutional layers as initial weights, and fine-tuned all layers’ weights. Our results support the notion that transfer learning and latent space derivation are powerful tools for the development of biologically meaningful oscillatory biomarkers in PD. View this paper
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Articles (26)

  • Article
  • Open Access
5 Citations
3,397 Views
22 Pages

30 December 2021

Parameter identification is an important research topic with a variety of applications in industrial and environmental problems. Usually, a functional has to be minimized in conjunction with parameter identification; thus, there is a certain similari...

  • Article
  • Open Access
3 Citations
4,131 Views
13 Pages

30 December 2021

In this article we present a class of mixed Poisson regression models with varying dispersion arising from non-conjugate to the Poisson mixing distributions for modelling overdispersed claim counts in non-life insurance. The proposed family of models...

  • Article
  • Open Access
11 Citations
3,618 Views
14 Pages

A Heuristic Methods-Based Power Distribution System Optimization Toolbox

  • İsmail Alperen Özlü,
  • Olzhas Baimakhanov,
  • Almaz Saukhimov and
  • Oğuzhan Ceylan

28 December 2021

This paper proposes a toolbox for simulating the effective integration of renewable energy sources into distribution systems. The toolbox uses four heuristic methods: the particle swarm optimization (PSO) method, and three recently developed methods,...

  • Article
  • Open Access
7 Citations
5,032 Views
21 Pages

Optimization of Fiber-Reinforced Polymer Bars for Reinforced Concrete Column Using Nonlinear Finite Element Algorithms

  • Sajjad Sayyar Roudsari,
  • Liviu Marian Ungureanu,
  • Soheil Soroushnia,
  • Taher Abu-Lebdeh and
  • Florian Ion Tiberiu Petrescu

27 December 2021

The ductility and strength of reinforced concrete (RC) columns could be noticeably improved by replacing steel bars with polymeric bars. Despite the previous research on RC columns, most of those studies focused only on the lateral load capacity of t...

  • Article
  • Open Access
6 Citations
3,723 Views
13 Pages

Parallel Computing of Edwards—Anderson Model

  • Mikhail Alexandrovich Padalko,
  • Yuriy Andreevich Shevchenko,
  • Vitalii Yurievich Kapitan and
  • Konstantin Valentinovich Nefedev

27 December 2021

A scheme for parallel computation of the two-dimensional Edwards—Anderson model based on the transfer matrix approach is proposed. Free boundary conditions are considered. The method may find application in calculations related to spin glasses...

  • Article
  • Open Access
4 Citations
6,768 Views
18 Pages

27 December 2021

Convolutional neural networks (CNNs) have powerful representation learning capabilities by automatically learning and extracting features directly from inputs. In classification applications, CNN models are typically composed of: convolutional layers...

  • Article
  • Open Access
2 Citations
3,842 Views
29 Pages

Searching Monotone Arrays: A Survey

  • Márcia R. Cappelle,
  • Les R. Foulds and
  • Humberto J. Longo

26 December 2021

Given a monotone ordered multi-dimensional real array A and a real value k, an important question in computation is to establish if k is a member of A by sequentially searching A by comparing k with some of its entries. This search problem and its kn...

  • Article
  • Open Access
3 Citations
3,543 Views
11 Pages

Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis

  • Luka Grubišić,
  • Domagoj Lacmanović and
  • Josip Tambača

24 December 2021

This paper presents an algorithm for the fully automatic mesh generation for the finite element analysis of ships and offshore structures. The quality requirements on the mesh generator are imposed by the acceptance criteria of the classification soc...

  • Article
  • Open Access
3,444 Views
18 Pages

A New Algorithm for Simultaneous Retrieval of Aerosols and Marine Parameters

  • Taddeo Ssenyonga,
  • Øyvind Frette,
  • Børge Hamre,
  • Knut Stamnes,
  • Dennis Muyimbwa,
  • Nicolausi Ssebiyonga and
  • Jakob J. Stamnes

24 December 2021

We present an algorithm for simultaneous retrieval of aerosol and marine parameters in coastal waters. The algorithm is based on a radiative transfer forward model for a coupled atmosphere-ocean system, which is used to train a radial basis function...

  • Article
  • Open Access
13 Citations
6,648 Views
19 Pages

24 December 2021

Parkinson’s disease (PD) is characterized by abnormal brain oscillations that can change rapidly. Tracking neural alternations with high temporal resolution electrophysiological monitoring methods such as EEG can lead to valuable information about al...

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Algorithms - ISSN 1999-4893