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  1. 4621

    Design and Improvement of Routing Protocol for Field Observation Instrument Networking Based on LEACH Protocol by Jiuyuan Huo, Xingyue Deng, Hamzah Murad Mohammed Al-Neshmi

    Published 2020-01-01
    “…Firstly, the FOI-LEACH was proposed to mainly improve the LEACH protocol in three aspects: (1) the network nodes are heterogeneous and combined with the characteristics of field observation instrument networking. …”
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  2. 4622

    Reversible data hiding scheme based on enhanced image smoothness by Jinghan WANG, Hui ZHU, Helin LI, Hui LI, Xiaopeng YANG

    Published 2022-06-01
    “…With the prosperity of Internet technology and the popularity of social networks, reversible data hiding technology has been widely adopted in concealed information transmission of medical and military fields with its advantages on secret information recovery.Traditional reversible data hiding schemes mainly focus on the enhancement of embedding capacity and the reduction of the distortion rate of stego image, but pay less attention to the understanding of image details with the human eyes.Thus, it is difficult to resist hidden information detection methods.To solve the above challenge, a reversible data hiding algorithm was proposed, which ensured the visual quality of the stego image in the process of data hiding through the image visual smoothness enhancement.Specifically, the original image was divided into reference area and non-reference area.The secret data was embedded through the translation of the difference, which was calculated according to the predicted pixel value and the original pixel value of the non-reference area.To guarantee the visual quality of the image, smoothing mechanism was constructed, in which a Gaussian filter was utilized as a template to filter the predicted value and to add the filter difference into the cover image without loss.The pixel value of the reference region was used as edge information for lossless restoration of the original image.The filtering coefficient in Gaussian function was exploited as the embedded key to ensure the security of secret information.Simulation results regarding a large number of classical image data sets illustrated that the visual smoothness of stego image processed by this scheme was effectively enhanced with lower distortion rate, higher embedding rate, and higher embedding and extraction efficiency.In a typical circumstance, the similarity between the generated stego image and the Gaussian filter image can reach 0.9963.The PSNR and the embedded capacity can be up to 37.346 and 0.3289 BPP, respectively.…”
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  3. 4623

    TEACHING COMPUTATIONAL THINKING IN SAUDI ARABIAN SCHOOLS USING SMARTPHONE APPS by Abdullah Alenezi

    Published 2024-10-01
    “…Computational thinking, encompassing problem-solving, computational logic, and algorithmic thinking, is an essential skill in the modern world. …”
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  4. 4624

    Landslide Segmentation in High-Resolution Remote Sensing Images: The Van–UPerAttnSeg Framework with Multi-Scale Feature Enhancement by Chang Li, Quan Zou, Guoqing Li, Wenyang Yu

    Published 2025-04-01
    “…However, traditional methods of landslide recognition mainly rely on visual interpretation and manual recognition of remote sensing images, which are time-consuming and susceptible to subjective factors, thereby limiting the accuracy and efficiency of recognition. …”
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    Article
  5. 4625

    Outlier Traffic Flow Detection and Pattern Analysis Under Unplanned Disruptions: A Low-Rank Robust Decomposition Model by Zhipeng Duan

    Published 2025-01-01
    “…The accelerated proximal gradient solution algorithm is applied to obtain the decomposition results. …”
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    Article
  6. 4626

    Signal mining and risk analysis of tisotumab vedotin adverse events based on the FAERS database by JuanJuan Li, Yang Zhao, Xueqin Yang, Juan Zheng, Ting Yuan, Qian Tang, Mei Guo

    Published 2025-08-01
    “…However, its adverse events (AE) are mainly recorded in clinical trials, lacking of real-world data. …”
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  7. 4627

    Two-stage deep reinforcement learning method for agile optical satellite scheduling problem by Zheng Liu, Wei Xiong, Zhuoya Jia, Chi Han

    Published 2024-11-01
    “…A neural network is designed as the observation scheduling network to determine observation actions for the sequenced tasks, which is well trained by the soft actor-critic algorithm. Finally, extensive experiments show that the proposed method, along with the designed mechanisms and strategy, is superior to comparison algorithms in terms of solution quality, generalization performance, and computation efficiency.…”
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  8. 4628

    MIMO-OFDM/OCDM low-complexity equalization under a doubly dispersive channel in wireless sensor networks by Ahmad AA Solyman, Hani Attar, Mohammad R Khosravi, Baki Koyuncu

    Published 2020-06-01
    “…Moreover, the proposed work is applied over multiple-input multiple-output systems rather than the conventional single-antenna orthogonal chirp division multiplexing systems, based on the discrete fractional cosine transform orthogonal chirp division multiplexing system to mitigate the effect of frequency-selective and time-varying channels, using low-complexity equalizers, specifically by ignoring the intercarrier interference coming from faraway subcarriers and using the LSMR iteration algorithm to decrease the equalization complexity, mainly with long orthogonal chirp division multiplexing symbols, such as the TV symbols. …”
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  9. 4629

    Describing Pulmonary Nodules Using 3D Clustering by Amera Al-Funjan, Farid Meziane, Rob Aspin

    Published 2022-10-01
    “…This paper combines algorithms to cluster and define nodule’s features in 3D visualization. …”
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  10. 4630

    Learning Rates for -Regularized Kernel Classifiers by Hongzhi Tong, Di-Rong Chen, Fenghong Yang

    Published 2013-01-01
    “…We consider a family of classification algorithms generated from a regularization kernel scheme associated with -regularizer and convex loss function. …”
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  11. 4631

    ALLERGY TO ANTIBIOTICS IN CHILDREN: WHO IS TO BLAME AND WHAT TO DO? by I. V. Andreeva, O. U. Stetsyuk

    Published 2013-11-01
    “…The review describes the main types of allergic reactions to the antibacterial drugs most widely used in children. …”
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  12. 4632

    Approximation of Fixed Points of Weak Bregman Relatively Nonexpansive Mappings in Banach Spaces by Jiawei Chen, Zhongping Wan, Liuyang Yuan, Yue Zheng

    Published 2011-01-01
    “…By using projection techniques, we construct several modification of Mann type iterative algorithms with errors and Halpern-type iterative algorithms with errors to find fixed points of weak Bregman relatively nonexpansive mappings and Bregman relatively nonexpansive mappings in Banach spaces. …”
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  17. 4637

    El método de elementos finitos como alternativa en el cálculo de engranajes. // The finite elements method as altenative in gear design. by G. González Rey, P. Frechilla Fernández, R. José García Martín

    Published 2002-01-01
    “…In this paper, bases for the generation method of teeth profile of spur gears, an algorithm for bending stresses<br />calculation and the comparison of results obtained by one and another method are exposed.…”
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