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  • Open Access

    ARTICLE

    Integrating Attention Mechanism with Code Structural Affinity and Execution Context Correlation for Automated Bug Repair

    Jinfeng Ji1, Geunseok Yang2,*

    CMC-Computers, Materials & Continua, Vol.86, No.3, 2026, DOI:10.32604/cmc.2025.071733 - 12 January 2026

    Abstract Automated Program Repair (APR) techniques have shown significant potential in mitigating the cost and complexity associated with debugging by automatically generating corrective patches for software defects. Despite considerable progress in APR methodologies, existing approaches frequently lack contextual awareness of runtime behaviors and structural intricacies inherent in buggy source code. In this paper, we propose a novel APR approach that integrates attention mechanisms within an autoencoder-based framework, explicitly utilizing structural code affinity and execution context correlation derived from stack trace analysis. Our approach begins with an innovative preprocessing pipeline, where code segments and stack traces are… More >

  • Open Access

    ARTICLE

    A Composite Loss-Based Autoencoder for Accurate and Scalable Missing Data Imputation

    Thierry Mugenzi, Cahit Perkgoz*

    CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-21, 2026, DOI:10.32604/cmc.2025.070381 - 10 November 2025

    Abstract Missing data presents a crucial challenge in data analysis, especially in high-dimensional datasets, where missing data often leads to biased conclusions and degraded model performance. In this study, we present a novel autoencoder-based imputation framework that integrates a composite loss function to enhance robustness and precision. The proposed loss combines (i) a guided, masked mean squared error focusing on missing entries; (ii) a noise-aware regularization term to improve resilience against data corruption; and (iii) a variance penalty to encourage expressive yet stable reconstructions. We evaluate the proposed model across four missingness mechanisms, such as Missing… More >

  • Open Access

    ARTICLE

    An Integrated Approach to Condition-Based Maintenance Decision-Making of Planetary Gearboxes: Combining Temporal Convolutional Network Auto Encoders with Wiener Process

    Bo Zhu1,#, Enzhi Dong1,#, Zhonghua Cheng1,*, Xianbiao Zhan2, Kexin Jiang1, Rongcai Wang 3

    CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-26, 2026, DOI:10.32604/cmc.2025.069194 - 10 November 2025

    Abstract With the increasing complexity of industrial automation, planetary gearboxes play a vital role in large-scale equipment transmission systems, directly impacting operational efficiency and safety. Traditional maintenance strategies often struggle to accurately predict the degradation process of equipment, leading to excessive maintenance costs or potential failure risks. However, existing prediction methods based on statistical models are difficult to adapt to nonlinear degradation processes. To address these challenges, this study proposes a novel condition-based maintenance framework for planetary gearboxes. A comprehensive full-lifecycle degradation experiment was conducted to collect raw vibration signals, which were then processed using a… More >

  • Open Access

    ARTICLE

    ARAE: An Adaptive Robust AutoEncoder for Network Anomaly Detection

    Chunyong Yin, Williams Kyei*

    Journal of Cyber Security, Vol.7, pp. 615-635, 2025, DOI:10.32604/jcs.2025.072740 - 24 December 2025

    Abstract The evolving sophistication of network threats demands anomaly detection methods that are both robust and adaptive. While autoencoders excel at learning normal traffic patterns, they struggle with complex feature interactions and require manual tuning for different environments. We introduce the Adaptive Robust AutoEncoder (ARAE), a novel framework that dynamically balances reconstruction fidelity with latent space regularization through learnable loss weighting. ARAE incorporates multi-head attention to model feature dependencies and fuses multiple anomaly indicators into an adaptive scoring mechanism. Extensive evaluation on four benchmark datasets demonstrates that ARAE significantly outperforms existing autoencoder variants and classical methods, More >

  • Open Access

    ARTICLE

    VCA Augments Doxorubicin Efficacy in Triple-Negative Breast Cancer: Evidence for Multi-Pathway Synergism

    Chang-Eui Hong1,2,3, Su-Yun Lyu1,2,3,*

    BIOCELL, Vol.49, No.12, pp. 2377-2397, 2025, DOI:10.32604/biocell.2025.072360 - 24 December 2025

    Abstract Objective: Triple-negative breast cancer (TNBC) remains a major therapeutic challenge with limited treatment options and poor prognosis. This study aimed to investigate the synergistic anticancer effects of doxorubicin (DOX) combined with Viscum album L. var. coloratum agglutinin (VCA) and to elucidate the underlying molecular mechanisms in TNBC cells. Methods: This study evaluated the synergistic effects and mechanisms of doxorubicin (DOX) and Viscum album L. var. coloratum agglutinin (VCA) combination in MDA-MB231 TNBC cells. Cell viability, oxidative stress markers, apoptosis-related proteins, cell migration, and proliferative recovery were assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, superoxide dismutase (SOD) and nitric oxide… More >

  • Open Access

    ARTICLE

    Enhanced physical and optoelectronic properties of Ag-doped SnS thin films

    A. G. Kumara,*, V. K. V. Krishnab, A. P. Lingaswamyc, S. Masmad, G. Prathibhae, G. Sujathaf, P. S. Kumarg, T. V. Kumarh, J. V. V. N. K. Raoi, B. H. Raoa

    Chalcogenide Letters, Vol.22, No.2, pp. 143-149, 2025, DOI:10.15251/CL.2025.222.143

    Abstract SnS thin films doped with two atomic % Ag are deposited on a pyrex glass substrates using chemical bath deposition method. The impact of 2 atomic % silver doping on the physical properties of SnS thin films is studied. X-ray diffraction studies confirmed that the deposited SnS films were of α-SnS phase with an orthorhombic crystal structure, which remained stable despite the addition of 2 at.% silver. It is observed that the addition of 2 atomic % silver to SnS chemical bath solution does not greatly influence the structural properties of SnS thin film. The More >

  • Open Access

    ARTICLE

    Structural and optical properties of ZnS/rGO nanocomposites optoelectronic devices

    A. M. Abdel-Daiema, M. Ahmeda,, E. R. Shaabanb,

    Chalcogenide Letters, Vol.22, No.2, pp. 131-142, 2025, DOI:10.15251/CL.2025.222.131

    Abstract This paper investigates the impact of reduced graphene oxide (rGO) addition on the structural and optical properties of ZnS nanocomposites. The study began with the synthesis of graphene oxide (GO) through the oxidation of natural graphite powder. This process involved using potassium permanganate in a mixture of sulfuric and phosphoric acids, maintained at 50°C for 48 hours. The reaction was terminated using hydrogen peroxide, followed by purification and drying, yielding 1.5 grams of GO. The preparation of ZnS/GO nanocomposites involved dissolving zinc acetate and varying quantities of GO in water, adjusting the pH, and incorporating… More >

  • Open Access

    ARTICLE

    The GGA-mBJ analysis of Ni modified SrS alloys for magnetic ordering and energy harvesting applications

    I. Sajjada, U. Parveen1, H. Al-Ghamdib,*, M. Yaseena, S. Saleema, Nasarullaha

    Chalcogenide Letters, Vol.22, No.9, pp. 829-845, 2025, DOI:10.15251/CL.2025.229.829

    Abstract Herein, we employed modified Becke-Johson (mBJ) potential based first principles method to investigate the structural, optoelectronic, and magnetic properties of pure SrS and Ni doped Sr1-xNixS alloys at varying doping concentrations. Formation enthalpy analysis predicts thermodynamical stability of resultant alloys. Geometry optimization was performed in order to optimize the super cells to obtain ground state energy state. After confirming their stability, we investigated their magnetic, electronic, and optical attributes. Pure SrS exhibits an indirect band gap of 3.53 eV (which is in good agreement with experiments), while nickel doping in SrS results in lowering the bandgap… More >

  • Open Access

    ARTICLE

    Photoelectric effects in polymer – (CdS) – ferrocene composites

    A. N. Jafarova, A. F. Gochuyeva*

    Chalcogenide Letters, Vol.22, No.9, pp. 821-828, 2025, DOI:10.15251/CL.2025.229.821

    Abstract In our work, we investigated the photoelectric effects arising in composites consisting of polar (fluorine-containing) and non-polar (polyolefin) polymers—such as high-density polyethylene (HDPE), PVDF, F42 — and an inorganic phase composed of AII< BVI (CdS, ZnS) and ferrocene. In addition, the processes occurring in these composites during the creation of these effects have been studied. It was found that the parameters of the formation of the posistor effect in the polymer-ferrocene composite are related to the presence of an interphase potential barrier, which is determined by the geometric dimensions of the interphase transition layer, dielectric permeability, More >

  • Open Access

    ARTICLE

    Chemically deposited cubic SnS photocathodes for photoelectrochemical water splitting

    U. Chalapathia, M. Vasudeva Reddyb,c, C. P. Reddyd, R. Dhanalakshmie, A. Divyaf, K. Mohanarangamg, S. H. Parka,*

    Chalcogenide Letters, Vol.22, No.9, pp. 787-796, 2025, DOI:10.15251/CL.2025.229.787

    Abstract Recently, cubic SnS shows promising potential for optoelectronic applications, including solar cells. Despite its advantages, the photoelectrochemical (PEC) properties of cubic SnS photoelectrodes remain underexplored. This study examines the PEC performance of cubic SnS photocathodes synthesized on FTO substrates via chemical bath deposition and annealed at 250o C for varying durations (10, 20, and 30 min). The as-deposited SnS films, characterized by a cubic crystal structure (lattice parameter: 1.162 nm, crystallite size: 17 nm), an energy gap of 1.75 eV, and an initial photocurrent of 0.8 mA/cm2 at -1 V vs. Hg/HgO, showed significant enhancement More >

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