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Design and Improvement of Routing Protocol for Field Observation Instrument Networking Based on LEACH Protocol
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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4622
Reversible data hiding scheme based on enhanced image smoothness
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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4623
TEACHING COMPUTATIONAL THINKING IN SAUDI ARABIAN SCHOOLS USING SMARTPHONE APPS
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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4624
Landslide Segmentation in High-Resolution Remote Sensing Images: The Van–UPerAttnSeg Framework with Multi-Scale Feature Enhancement
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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4625
Outlier Traffic Flow Detection and Pattern Analysis Under Unplanned Disruptions: A Low-Rank Robust Decomposition Model
Published 2025-01-01“…The accelerated proximal gradient solution algorithm is applied to obtain the decomposition results. …”
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4626
Signal mining and risk analysis of tisotumab vedotin adverse events based on the FAERS database
Published 2025-08-01“…However, its adverse events (AE) are mainly recorded in clinical trials, lacking of real-world data. …”
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Two-stage deep reinforcement learning method for agile optical satellite scheduling problem
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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4628
MIMO-OFDM/OCDM low-complexity equalization under a doubly dispersive channel in wireless sensor networks
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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4629
Describing Pulmonary Nodules Using 3D Clustering
Published 2022-10-01“…This paper combines algorithms to cluster and define nodule’s features in 3D visualization. …”
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4630
Learning Rates for -Regularized Kernel Classifiers
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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4631
ALLERGY TO ANTIBIOTICS IN CHILDREN: WHO IS TO BLAME AND WHAT TO DO?
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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4632
Approximation of Fixed Points of Weak Bregman Relatively Nonexpansive Mappings in Banach Spaces
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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Machine Learning Accurately Predicts Need for Critical Care Support in Patients Admitted to Hospital for Community-Acquired Pneumonia
Published 2025-06-01“…None. MEASUREMENTS AND MAIN RESULTS:. Performance was evaluated with area under the receiver operating characteristic curve (AUROC) and accuracy. …”
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El método de elementos finitos como alternativa en el cálculo de engranajes. // The finite elements method as altenative in gear design.
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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4638
Standardised packaging, minimum excise tax, and RYO focussed tax rise implications for UK tobacco pricing.
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4639
Results of external quality control study in flow cytometric acute lymphoblastic leukemia diagnostics
Published 2016-10-01“…Continuation of similar QC rounds following by consecutive discussions with further development of consensus diagnostic algorithm could be the first step for standardization of ALL immunophenotyping in Russian Federation and CIS countries.…”
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