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  • Open Access

    ARTICLE

    Spectral-Semantic Decoupled Rectification Network for Non-Uniform Underwater Image Restoration

    Jinshuo Ma, Yang Li*, Can Guo, Wen Gao, Ruiming Zhang

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.085999 - 13 August 2026

    Abstract Underwater image restoration is severely hindered by a tightly coupled degradation process: wavelength-dependent spectral distortion combined with non-uniform, multi-scale spatial scattering. Standard Convolutional Neural Networks (CNNs) and rigid physical priors frequently fail in these dynamic environments, limited by restricted receptive fields, overlooked inter-channel spectral correlations, and severe over-enhancement in photon-starved regions. To break this bottleneck, we propose the Phased Feature Rectification Network (PFR-Net), a decoupled architecture that transforms the ill-posed restoration task into a sequential global spectral calibration and deep semantic refinement paradigm. In the first phase, an efficient Multi-Layer Perceptron (MLP)-based Color Mapping (MLP-CM)… More >

  • Open Access

    ARTICLE

    BIAC-Net: Bidirectional Global-Local Communication for Feature Refinement in Medical Image Classification

    Muhammad Naeem Zafar1, Yunfei Yin1,*, Junaid Abbas2, Bayan Alabdullah3, Khaled Alnowaiser4, Yunyoung Nam5, Zepa Yang5,*

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.085136 - 13 August 2026

    Abstract Accurate medical image classification increasingly relies on the joint modeling of global contextual semantics and fine-grained local structural cues, since many lesions are only reliably recognized when subtle local details are interpreted within their broader anatomical context. However, most recent hybrid CNN–Transformer and global–local frameworks still extract these features in separate streams and merge them only through late-stage static fusion, without explicit bidirectional interaction during representation learning. As a result, global context cannot effectively guide the refinement of subtle local structures, and local discriminative cues cannot recalibrate higher-level semantic reasoning before classification, which limits reciprocal… More >

  • Open Access

    ARTICLE

    DDE-SER: A Dual-Decomposition Ensemble Framework Fusing Adaptive Variational Modes and Harmonic-Percussive Spectrograms for Speech Emotion Recognition

    David Hason Rudd1,*, Cesar Sanin2, Md Rafiqul Islam3, Xianzhi Wang1, Huan Huo1

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.084015 - 13 August 2026

    Abstract The accurate classification of human emotions from speech remains a formidable challenge due to the dynamic, non-stationary properties of audio signals and pervasive background noise. Traditional single-domain extraction methods frequently fail to capture overlapping acoustic phenomena, resulting in high misclassification rates among acoustically similar emotions. To overcome this, we propose the Dual-Decomposition Ensemble (DDE-SER), an architecture that synergizes 1D adaptive frequency filtering with 2D spatial spectrogram separation. The framework operates through two distinct pipelines: an adaptive time-domain branch that leverages VGG-optiVMD to autonomously extract Intrinsic Mode Functions (IMFs), and a structural spectrogram branch that applies… More >

  • Open Access

    ARTICLE

    A Two-Stage, Nested Co-Optimization Framework with Adaptive Evolutionary Operators for Component-Level Constellation Morphology and Mission Planning

    Chao Zhang, Yunfeng Dong*

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.083353 - 13 August 2026

    Abstract The missile warning constellation is fundamental to national territorial security and has significant strategic and military value. This study proposes a two-stage, nested co-optimization framework with adaptive evolutionary operators, termed TNC-A, to address challenges in genetic representation, evaluation distortion, the curse of dimensionality, and search inefficiency within the co-optimization of component-level constellation morphology and mission planning. A hybrid encoding scheme combining tree-structured and real-valued vector representations was adopted to encode all optimization variables, including constellation configuration, component-level unified platform information, and mission planning parameters. Second, a multi-stage optimization strategy integrated with a double-nested structure was More >

  • Open Access

    ARTICLE

    A Weight-Gated Framework for Adaptive Proof Search over Fixed Base Calculi

    Jordi Vallverdú*

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.082945 - 13 August 2026

    Abstract Large rule-based systems—from automated theorem provers to diagnostic engines and expert systems—face a common bottleneck: when many rules are simultaneously applicable, choosing which rule to fire can dominate search effort. We present HL-W, a formally constrained adaptive proof-search control layer over a fixed base calculus. Each inference rule R is assigned a scalar weight w(R,t)[0,1] at search stage t; rule applications are scheduled by combining a threshold condition w(R,t)θ with an explicit fairness mechanism. Because the underlying inference rules are left unchanged, every derivation produced by the framework… More >

  • Open Access

    ARTICLE

    Toward Secure and Adaptive Medical Digital Twins: A Privacy-Preserving Federated Multi-Agent Reinforcement Learning Framework

    Tallha Akram1,*, Sadiq Ahmad2,*, Meshal Alharbi3

    CMC-Computers, Materials & Continua, Vol.89, No.1, 2026, DOI:10.32604/cmc.2026.081458 - 13 August 2026

    Abstract Scalability limitations, privacy risks, and lack of adaptability remain key challenges in centralized medical digital win (MDT) architectures. While federated learning (FL) mitigates the need to share raw data, it often lacks adaptability to dynamic clinical environments and does not fully integrate formal privacy guarantees into the learning process. To address these challenges, this paper proposes a decentralized, federated, multi-agent reinforcement learning (F-MARL) framework to coordinate MDTs in the presence of partial observability. The framework is formulated as a multi-agent partially observable Markov decision process (MA-POMDP), enabling distributed policy optimization in heterogeneous and uncertain clinical… More >

  • Open Access

    ARTICLE

    Parameter Adaptive SVIC FR Strategy for Doubly-Fed Induction Generators Considering Wind Condition Zoning

    Li Sun, Fanjun Zeng, Hongbo Liu, Chenglian Ma*, Qiting Zhang, Jingzhou Zhu

    Energy Engineering, Vol.123, No.9, 2026, DOI:10.32604/ee.2025.073405 - 06 August 2026

    Abstract The widespread integration of large-scale wind power has resulted in decreased equivalent inertia in power systems, thereby compromising their frequency regulation (FR) capabilities. Conventional synthetic inertia control faces challenges under stochastic wind conditions, including inadequate utilization of rotor kinetic energy in high wind condition regions and the risk of triggering rotor speed stability limits in low wind condition regions. To overcome these limitations, in this paper, a parameter adaptive synthetic virtual inertial control (SVIC) framework based on wind speed partition is proposed. The control mechanisms are designed differently across partitioned wind condition intervals: in high-wind-speed More >

  • Open Access

    REVIEW

    Nuclear Test Sites as Natural Experiments: Conceptual Perspectives on Plant Evolution from the New Mexico Desert

    Gian Marco Ludovici1,2,*, Paola Amelia Tassi2, Alba Iannotti2,3, Colomba Russo2,3, Francesco Gargallo di Castel Lentini4, Timothy Alexander Mousseau5, Andrea Malizia1,2

    Phyton-International Journal of Experimental Botany, Vol.95, No.7, 2026, DOI:10.32604/phyton.2026.083056 - 30 July 2026

    Abstract The detonation of nuclear weapons, beginning with the Trinity test in New Mexico and followed by the bombings of Hiroshima and Nagasaki, created distinct environments of ionizing radiation exposure. While the ecological consequences of reactor accidents at Chernobyl and Fukushima have been extensively investigated, the potential evolutionary implications of historical weapons testing for plant communities remain comparatively underexplored, particularly in arid ecosystems. This review synthesizes available, yet fragmented, evidence to examine the hypothesis that residual radionuclides in arid test-site environments may have acted as potential selective pressures influencing plant persistence and stress-associated traits in native… More >

  • Open Access

    ARTICLE

    Adaptive Maintenance Management Framework for Steel Truss Bridges Subjected to Climate Change-Induced Corrosion

    Mutlu Seçer*, Ali Alper Saylan

    CMES-Computer Modeling in Engineering & Sciences, Vol.148, No.1, 2026, DOI:10.32604/cmes.2026.084228 - 27 July 2026

    Abstract Climate change modifies environmental exposure conditions and affects the corrosion-driven deterioration of steel bridges, thereby challenging conventional maintenance planning approaches. Thus, more advanced maintenance management strategies are required to address the challenges associated with varying corrosion rate projections. In this study, a novel adaptive maintenance management framework is proposed for steel truss bridges to address climate change-induced corrosion under evolving deterioration conditions. Adaptivity is achieved by updating corrosion rates to consider time-varying deterioration conditions associated with climate change. This enables time-dependent representation of corrosion progression under changing environmental conditions. The framework is demonstrated on a… More >

  • Open Access

    ARTICLE

    AAC-HABSA: An Adaptive Aspect Conditioning Framework for Interpretable and Robust Aspect-Based Sentiment Analysis

    Mahander Kumar1, Lal Khan2,*, Mohammad Zubair Khan3,*, Ibrahim Aljubayri4

    CMES-Computer Modeling in Engineering & Sciences, Vol.148, No.1, 2026, DOI:10.32604/cmes.2026.081699 - 27 July 2026

    Abstract Aspect-Based Sentiment Analysis (ABSA) is a fundamental Natural Language Processing (NLP) task that aims to determine fine-grained sentiment polarity toward specific aspects mentioned in text. With the emergence of Large Language Models (LLMs) and transformer-based architectures, significant improvements have been achieved in contextual representation learning for sentiment analysis. However, existing LLM-inspired and transformer-based ABSA frameworks often suffer from inadequate aspect-context alignment, redundant feature integration, limited interpretability, and insufficient coordination between contextual and sequential modeling components. To address these challenges, this paper proposes two hybrid architectures, namely HABSA and AAC-HABSA, centered on a novel Adaptive Aspect… More > Graphic Abstract

    AAC-HABSA: An Adaptive Aspect Conditioning Framework for Interpretable and Robust Aspect-Based Sentiment Analysis

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