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Computation, Volume 13, Issue 12

2025 December - 25 articles

Cover Story: Photoplethysmographic (PPG) signals are widely used in wearable health monitoring, yet robust peak detection remains challenging due to noise, motion artifacts, and signal variability. This study introduces a hybrid deep learning architecture that integrates discrete wavelet transform (DWT) feature extraction with CNN–LSTM modeling and a temporal attention mechanism. The proposed approach captures both multiscale morphological features and long-term temporal dependencies, enabling adaptive peak localization under diverse signal conditions. Experimental results demonstrate improved detection accuracy and robustness compared to conventional and deep learning-based methods, supporting the reliability of heart rate analysis in real-world biomedical applications. View this paper
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Articles (25)

  • Article
  • Open Access
719 Views
16 Pages

18 December 2025

The rising deployment of artificial intelligence in public services is constrained by computational costs and limited domain-specific data, particularly in multilingual contexts. This study proposes a generalizable Agentic AI pipeline for developing...

  • Article
  • Open Access
304 Views
22 Pages

Ship Model Identification Using Interpretable 4-DOF Maneuverability Models for River Combat Boat

  • Juan Contreras Montes,
  • Aldo Lovo Ayala,
  • Daniela Ospino-Balcázar,
  • Kevin Velasquez Gutierrez,
  • Carlos Soto Montaño,
  • Roosvel Soto-Diaz,
  • Javier Jiménez-Cabas,
  • José Oñate López and
  • José Escorcia-Gutierrez

18 December 2025

Ship maneuverability models are typically defined by three degrees of freedom: surge, sway, and yaw. However, patrol vessels operating in riverine environments often exhibit significant roll motion during course changes, necessitating the inclusion o...

  • Article
  • Open Access
391 Views
22 Pages

Shared Nodes of Overlapping Communities in Complex Networks

  • Vesa Kuikka,
  • Kosti Koistinen and
  • Kimmo K. Kaski

17 December 2025

Overlapping communities are key characteristics of the structure and function analysis of complex networks. Shared or overlapping nodes within overlapping communities can either form subcommunities or act as intersections between larger communities....

  • Article
  • Open Access
381 Views
23 Pages

17 December 2025

In this paper, a fast distributed algorithm is proposed for solving the winners and price determination problems in a uniform price auction in which each bidder bids for multiple units out of a lot of k identical items with a per-unit price. In a con...

  • Article
  • Open Access
591 Views
21 Pages

DPCA-GCN: Dual-Path Cross-Attention Graph Convolutional Networks for Skeleton-Based Action Recognition

  • Khadija Lasri,
  • Khalid El Fazazy,
  • Adnane Mohamed Mahraz,
  • Hamid Tairi and
  • Jamal Riffi

15 December 2025

Skeleton-based action recognition has achieved remarkable advances with graph convolutional networks (GCNs). However, most existing models process spatial and temporal information within a single coupled stream, which often obscures the distinct patt...

  • Article
  • Open Access
495 Views
20 Pages

mDA: Evolutionary Machine Learning Algorithm for Feature Selection in Medical Domain

  • Ibrahim Aljarah,
  • Abdullah Alzaqebah,
  • Nailah Al-Madi,
  • Ala’ M. Al-Zoubi and
  • Amro Saleh

13 December 2025

The rapid expansion of medical data, characterized by its complex high-dimensional attributes, presents numerous promising opportunities and substantial challenges in healthcare analytics. Adopting effective feature selection techniques is essential...

  • Article
  • Open Access
389 Views
19 Pages

10 December 2025

To address the challenges of interdependent design parameters and reliance on empirical trial-and-error in ultrasonic cell levitation culture devices, this study proposes a top-down design framework integrating multi-physics modeling with complex net...

  • Article
  • Open Access
2 Citations
869 Views
17 Pages

Objective over Architecture: Fraud Detection Under Extreme Imbalance in Bank Account Opening

  • Wenxi Sun,
  • Qiannan Shen,
  • Yijun Gao,
  • Qinkai Mao,
  • Tongsong Qi and
  • Shuo Xu

9 December 2025

Fraud in financial services—especially account opening fraud—poses major operational and reputational risks. Static rules struggle to adapt to evolving tactics, missing novel patterns and generating excessive false positives. Machine lear...

  • Article
  • Open Access
458 Views
26 Pages

8 December 2025

Flow quality at the engine face, especially total pressure recovery and swirl, is central to the performance and stability of external compression supersonic inlets. Steady-state RANS-based numerical computations are performed to quantify bleed/swirl...

  • Article
  • Open Access
1,800 Views
15 Pages

Direct Cooling of Microsystems Using a Two-Phase Microfluidic Droplet

  • Wenpei Lu,
  • Abdel Illah El Abed,
  • Rachid Bennacer and
  • Xiaoyan Ma

6 December 2025

Droplet-based microfluidics offers a promising approach for enhancing heat transfer in microchannels, which is critical for the thermal management of microsystems. This study presents a two-dimensional numerical investigation of flow and heat transfe...

  • Article
  • Open Access
1,536 Views
22 Pages

A Brain–Computer Interface for Control of a Virtual Prosthetic Hand

  • Ángel del Rosario Zárate-Ruiz,
  • Manuel Arias-Montiel and
  • Christian Eduardo Millán-Hernández

6 December 2025

Brain–computer interfaces (BCIs) have emerged as an option that allows better communication between humans and some technological devices. This article presents a BCI based on the steady-state visual evoked potentials (SSVEP) paradigm and low-c...

  • Review
  • Open Access
1,170 Views
29 Pages

Towards 6G: A Review of Optical Transport Challenges for Intelligent and Autonomous Communications

  • Evelio Astaiza Hoyos,
  • Héctor Fabio Bermúdez-Orozco and
  • Jorge Alejandro Aldana-Gutierrez

5 December 2025

The advent of sixth-generation (6G) communications envisions a paradigm of ubiquitous intelligence and seamless physical–digital fusion, demanding unprecedented performance from the optical transport infrastructure. Achieving terabit-per-second...

  • Article
  • Open Access
427 Views
22 Pages

Theoretical Insight into Non-Covalent Complexes of Closo-Borate Anions [BnHn−1X]y− with Glycine

  • Ilya N. Klyukin,
  • Anastasia V. Kolbunova,
  • Alexander S. Novikov,
  • Alexandra A. Klyukina,
  • Konstantin Y. Zhizhin and
  • Nikolay T. Kuznetsov

5 December 2025

Non-covalent contacts play a significant role in binding between fragments in supramolecular assemblies. Understanding the non-covalent binding capabilities of closo-borate anions and their derivatives is a significant research challenge, due to thei...

  • Article
  • Open Access
477 Views
27 Pages

A Visual Representation–Based Computational Approach for Student Dropout Analysis: A Case Study in Colombia

  • Juan-Carlos Briñez-De-León,
  • Alejandra-Estefanía Patiño-Hoyos,
  • Farley-Albeiro Restrepo-Loaiza and
  • Gabriel-Jaime Cardona-Osorio

3 December 2025

Academic dropout is a persistent challenge in higher education, particularly in contexts with socio-economic disparities and diverse learning conditions. Traditional predictive models often fail to capture the complex, non-linear interactions underly...

  • Article
  • Open Access
591 Views
32 Pages

2 December 2025

Distributed cloud networks spanning multiple jurisdictions face significant challenges in anomaly detection due to privacy constraints, regulatory requirements, and communication limitations. This paper presents a mathematically rigorous framework fo...

  • Article
  • Open Access
1,288 Views
30 Pages

1 December 2025

Advancements in deep learning have revolutionized materials discovery by enabling predictive modeling of complex material properties. However, single-modal approaches often fail to capture the intricate interplay of compositional, structural, and mor...

  • Article
  • Open Access
1 Citations
466 Views
23 Pages

Assessment of Computational Tools for Analysing the Observability and Accessibility of Nonlinear Models

  • Mahmoud Shams Falavarjani,
  • Adriana González Vázquez and
  • Alejandro F. Villaverde

1 December 2025

Accessibility and observability are two properties of dynamic models that provide insights into the structural relationships between their input, output, and state variables. They are closely related to controllability and structural local identifiab...

  • Article
  • Open Access
460 Views
19 Pages

Numerical Investigations of Water-Lubricated Core Annular Flow (CAF) for Heavy Oil Transportation

  • Salim Al Jadidi,
  • Dadapeer Doddamani,
  • Yahya Ubaid Al Shamsi,
  • Ibrahim Nasser Al Siyabi and
  • Siva Subramanian

1 December 2025

This study examines the flow behavior of water-lubricated heavy oil transport utilizing the core annular flow (CAF) technique. The goal is to enhance efficiency and minimize risks in pipeline operations. The flow was numerically simulated in a horizo...

  • Article
  • Open Access
356 Views
14 Pages

1 December 2025

When dealing with mathematical or statistical models involving one or more explanatory (independent) variables, one often wants to determine the effects of such variables on a response (independent) variable. In the case of linear regression models,...

  • Article
  • Open Access
435 Views
20 Pages

1 December 2025

Purpose: While hybrid quantum–classical neural networks (HNNs) are a promising avenue for quantum advantage, the critical influence of the classical backbone architecture on their performance remains poorly understood. This study investigates t...

  • Article
  • Open Access
485 Views
16 Pages

1 December 2025

Effective communication between deaf–mute and visually impaired individuals remains a challenge in the fields of human–computer interaction and accessibility technology. Current solutions mostly rely on single-modal recognition, which oft...

  • Article
  • Open Access
396 Views
19 Pages

Computational Analysis of Unipolar Stacked Switched Capacitor Architecture for Active Power Decoupling in Single-Phase Systems

  • Omar Rodríguez-Benítez,
  • Mario Ponce-Silva,
  • María Del Carmen Toledo-Pérez,
  • Ricardo E. Lozoya-Ponce,
  • Claudia Cortes-García,
  • Juan A. González-Flores and
  • Alfredo González-Ortega

1 December 2025

Computational analysis using PSpice has become an indispensable tool for evaluating power electronics circuits, as it allows accurate simulation of transient effects, ripple, and component dynamics, enabling reliable assessment of complex topologies...

  • Article
  • Open Access
866 Views
19 Pages

25 November 2025

The FitzHugh–Nagumo (FHN) equation in one dimension is solved in this paper using an improved physics-informed neural network (PINN) approach. Examining test problems with known analytical solutions and the explicit finite difference method (EF...

  • Article
  • Open Access
616 Views
15 Pages

Dihedral Corner Region Camouflage in Radar Vision by Super-Dispersion Encoded Surfaces

  • Weibin Sun,
  • Wenlin Zhang,
  • Xujin Yuan,
  • He Tian,
  • Sheng Li and
  • Hongcheng Yin

22 November 2025

Right-angle dihedral structures produce strong, highly correlated returns that dominate radar cross-section (RCS) and image signatures. Conventional absorbers or random coding metasurfaces often lose effectiveness across wide frequency bands and angl...

  • Article
  • Open Access
652 Views
31 Pages

22 November 2025

This study proposes an enhanced deep learning framework for accurate detection of P-peaks in noisy photoplethysmographic (PPG) signals, utilizing a hybrid architecture that integrates wavelet-based analysis with neural network components. The P-peak...

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Computation - ISSN 2079-3197