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  • Open Access

    ARTICLE

    A New Normalized Climate Index (U2) for Türkiye: Comparison with Classical Methods

    Erdinç Uslan1,*, Emin Ulugergerli2

    Revue Internationale de Géomatique, Vol.35, pp. 31-51, 2026, DOI:10.32604/rig.2026.075081 - 05 February 2026

    Abstract Climate classification systems are essential tools for analyzing regional climatic behavior, assessing long-term aridity patterns, and evaluating the impacts of climate change on water resources and ecosystem resilience. This study introduces a new Climate Classification Method based on uniform and unitless variables, referred to as the U2 Climate Classification (U2CC). The proposed U2 Index was designed to overcome structural limitations of the classical De Martonne (1942) and Erinç (1949) indices, which rely on raw precipitation–temperature ratios and are sensitive to extreme values, particularly subzero temperatures. The U2 methodology consisted of two key steps: (i) normalization… More >

  • Open Access

    ARTICLE

    Hybrid Pythagorean Fuzzy Decision-Making Framework for Sustainable Urban Planning under Uncertainty

    Sana Shahab1, Vladimir Simic2,*, Ashit Kumar Dutta3,4, Mohd Anjum5,*, Dragan Pamucar6,7,8

    CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.1, 2026, DOI:10.32604/cmes.2025.073945 - 29 January 2026

    Abstract Environmental problems are intensifying due to the rapid growth of the population, industry, and urban infrastructure. This expansion has resulted in increased air and water pollution, intensified urban heat island effects, and greater runoff from parks and other green spaces. Addressing these challenges requires prioritizing green infrastructure and other sustainable urban development strategies. This study introduces a novel Integrated Decision Support System that combines Pythagorean Fuzzy Sets with the Advanced Alternative Ranking Order Method allowing for Two-Step Normalization (AAROM-TN), enhanced by a dual weighting strategy. The weighting approach integrates the Criteria Importance Through Intercriteria Correlation… More >

  • Open Access

    ARTICLE

    Modeling Pruning as a Phase Transition: A Thermodynamic Analysis of Neural Activations

    Rayeesa Mehmood*, Sergei Koltcov, Anton Surkov, Vera Ignatenko

    CMC-Computers, Materials & Continua, Vol.86, No.3, 2026, DOI:10.32604/cmc.2025.072735 - 12 January 2026

    Abstract Activation pruning reduces neural network complexity by eliminating low-importance neuron activations, yet identifying the critical pruning threshold—beyond which accuracy rapidly deteriorates—remains computationally expensive and typically requires exhaustive search. We introduce a thermodynamics-inspired framework that treats activation distributions as energy-filtered physical systems and employs the free energy of activations as a principled evaluation metric. Phase-transition–like phenomena in the free-energy profile—such as extrema, inflection points, and curvature changes—yield reliable estimates of the critical pruning threshold, providing a theoretically grounded means of predicting sharp accuracy degradation. To further enhance efficiency, we propose a renormalized free energy technique that More >

  • Open Access

    ARTICLE

    A Firefly Algorithm-Optimized CNN–BiLSTM Model for Automated Detection of Bone Cancer and Marrow Cell Abnormalities

    Ishaani Priyadarshini*

    CMC-Computers, Materials & Continua, Vol.86, No.3, 2026, DOI:10.32604/cmc.2025.072343 - 12 January 2026

    Abstract Early and accurate detection of bone cancer and marrow cell abnormalities is critical for timely intervention and improved patient outcomes. This paper proposes a novel hybrid deep learning framework that integrates a Convolutional Neural Network (CNN) with a Bidirectional Long Short-Term Memory (BiLSTM) architecture, optimized using the Firefly Optimization algorithm (FO). The proposed CNN-BiLSTM-FO model is tailored for structured biomedical data, capturing both local patterns and sequential dependencies in diagnostic features, while the Firefly Algorithm fine-tunes key hyperparameters to maximize predictive performance. The approach is evaluated on two benchmark biomedical datasets: one comprising diagnostic data… More >

  • Open Access

    ARTICLE

    Lightweight Airborne Vision Abnormal Behavior Detection Algorithm Based on Dual-Path Feature Optimization

    Baixuan Han1, Yueping Peng1,*, Zecong Ye2, Hexiang Hao1, Xuekai Zhang1, Wei Tang1, Wenchao Kang1, Qilong Li1

    CMC-Computers, Materials & Continua, Vol.86, No.2, pp. 1-31, 2026, DOI:10.32604/cmc.2025.071071 - 09 December 2025

    Abstract Aiming at the problem of imbalance between detection accuracy and algorithm model lightweight in UAV aerial image target detection algorithm, a lightweight multi-category abnormal behavior detection algorithm based on improved YOLOv11n is designed. By integrating multi-head grouped self-attention mechanism and Partial-Conv, a two-way feature grouping fusion module (DFPF) was designed, which carried out effective channel segmentation and fusion strategies to reduce redundant calculations and memory access. C3K2 module was improved, and then unstructured pruning and feature distillation technology were used. The algorithm model is lightweight, and the feature extraction ability for airborne visual abnormal behavior… More >

  • Open Access

    REVIEW

    Detecting Anomalies in FinTech: A Graph Neural Network and Feature Selection Perspective

    Vinh Truong Hoang1,*, Nghia Dinh1, Viet-Tuan Le1, Kiet Tran-Trung1, Bay Nguyen Van1, Kittikhun Meethongjan2,*

    CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-40, 2026, DOI:10.32604/cmc.2025.068733 - 10 November 2025

    Abstract The Financial Technology (FinTech) sector has witnessed rapid growth, resulting in increasingly complex and high-volume digital transactions. Although this expansion improves efficiency and accessibility, it also introduces significant vulnerabilities, including fraud, money laundering, and market manipulation. Traditional anomaly detection techniques often fail to capture the relational and dynamic characteristics of financial data. Graph Neural Networks (GNNs), capable of modeling intricate interdependencies among entities, have emerged as a powerful framework for detecting subtle and sophisticated anomalies. However, the high-dimensionality and inherent noise of FinTech datasets demand robust feature selection strategies to improve model scalability, performance, and More >

  • Open Access

    ARTICLE

    The intelligence of the Copts of Sudan: A test of norms validation

    Edward Dutton1,*, Salwa Saleh Mohamed Alamein2, Guy Madison3, David Becker4, Mohammed Ateik Al-Khadher5, Salaheldin Farah Attallah Bakhiet6, Yousif Balil Bashir Maki6, Nasser Said Gomaa Abdelrasheed7, Ahmad Mohammad Alzoubi8,9

    Journal of Psychology in Africa, Vol.35, No.5, pp. 695-699, 2025, DOI:10.32604/jpa.2025.067488 - 24 October 2025

    Abstract This study validated the Standard Progressive Matrices (SPM+) norms in the Sudanese context. A sample of Coptic Sudanese (n = 385, girls = 34.5%) and other Sudanese children (n = 1656, girls = 51.5%) aged between 7 and 10 took the SPM+. Reliability was acceptable (Cronbach’s alpha = 0.755 for the Copts). British Intelligence Quotient (IQ) norms scores from the SPM+ for the Copts were compared to those of the (North) Sudanese, controlling for age. The mean IQ of the Sudanese Copts was 88.92, while that of the other (North) Sudanese was 78.26. This difference More >

  • Open Access

    ARTICLE

    Offshore Wind Turbines Anomalies Detection Based on a New Normalized Power Index

    Bassel Weiss1, Segundo Esteban2,*, Matilde Santos3

    CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.3, pp. 3387-3418, 2025, DOI:10.32604/cmes.2025.070070 - 30 September 2025

    Abstract Anomaly detection in wind turbines involves emphasizing its ability to improve operational efficiency, reduce maintenance costs, extend their lifespan, and enhance reliability in the wind energy sector. This is particularly necessary in offshore wind, currently one of the most critical assets for achieving sustainable energy generation goals, due to the harsh marine environment and the difficulty of maintenance tasks. To address this problem, this work proposes a data-driven methodology for detecting power generation anomalies in offshore wind turbines, using normalized and linearized operational data. The proposed framework transforms heterogeneous wind speed and power measurements into… More > Graphic Abstract

    Offshore Wind Turbines Anomalies Detection Based on a New Normalized Power Index

  • Open Access

    ARTICLE

    Identification of Cardiac Risk Factors from ECG Signals Using Residual Neural Networks

    Divya Arivalagan, Vignesh Ochathevan*, Rubankumar Dhanasekaran

    Congenital Heart Disease, Vol.20, No.4, pp. 477-501, 2025, DOI:10.32604/chd.2025.070372 - 18 September 2025

    Abstract Background: The accurate identification of cardiac abnormalities is essential for proper diagnosis and effective treatment of cardiovascular diseases. Method: This work introduces an advanced methodology for detecting cardiac abnormalities and estimating electrocardiographic age (ECG Age) using sophisticated signal processing and deep learning techniques. This study looks at six main heart conditions found in 12-lead electrocardiogram (ECG) data. It addresses important issues like class imbalances, missing lead scenarios, and model generalizations. A modified residual neural network (ResNet) architecture was developed to enhance the detection of cardiac abnormalities. Results: The proposed ResNet demonst rated superior performance when compared with… More > Graphic Abstract

    Identification of Cardiac Risk Factors from ECG Signals Using Residual Neural Networks

  • Open Access

    ARTICLE

    A Novel Multi-Objective Topology Optimization Method for Stiffness and Strength-Constrained Design Using the SIMP Approach

    Jianchang Hou1, Zhanpeng Jiang1, Fenghe Wu1, Hui Lian1, Zhaohua Wang2, Zijian Liu3, Weicheng Li1,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.2, pp. 1545-1572, 2025, DOI:10.32604/cmes.2025.068482 - 31 August 2025

    Abstract In this paper, a topology optimization method for coordinated stiffness and strength design is proposed under mass constraints, utilizing the Solid Isotropic Material with Penalization approach. Element densities are regulated through sensitivity filtering to mitigate numerical instabilities associated with stress concentrations. A p-norm aggregation function is employed to globalize local stress constraints, and a normalization technique linearly weights strain energy and stress, transforming the multi-objective problem into a single-objective formulation. The sensitivity of the objective function with respect to design variables is rigorously derived. Three numerical examples are presented, comparing the optimized structures in terms More >

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