Showing 3,081 - 3,100 results of 19,511 for search '"Algorithms"', query time: 0.09s Refine Results
  1. 3081
  2. 3082

    Coordinate transformation based coefficients estimation algorithm for digital predistortion of RF power amplifiers by GHao HUAN, Hua QIAN, Sai-jie YAO, Xiu-mei YANG

    Published 2015-01-01
    “…Based on the low-IF digital predistortion (DPD) architecture,a coordinate transformation based low-complex coefficients estimation algorithm is proposed to reduce the hardware implementation cost and numerical calculation complexity significantly.The proposed algorithm transforms the complex multiplication of the conventional DPD coefficients estimation method to amplitude multiplication and phase addition in polar coordinates.To complete the same calculation,times of multiplications and accumulations are reduced by 75% and 50%.The algorithm is derived from the general Volterra pass-band nonlinear model,and proves the equivalency of baseband predistortion and IF predistortion.The proposed low-IF architecture and the coefficients estimation algorithm are verified by the measurement results on a practical radio frequency power amplifier.…”
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  3. 3083

    Genetic Algorithm and Graph Theory Based Matrix Factorization Method for Online Friend Recommendation by Qu Li, Min Yao, Jianhua Yang, Ning Xu

    Published 2014-01-01
    “…Experiments showed that the hybrid recommendation algorithm is able to recommend online friends with good accuracy.…”
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    Article
  4. 3084
  5. 3085

    McEliece public key cryptosystem attack algorithm based on enumeration error vector by Jing-mei LIU, Yan-li WANG, Bin LIANG, Lin-sen ZHAO

    Published 2014-05-01
    “…Considering the above analysis, an attack algorithm based on enumeration error vector was proposed. …”
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    Article
  6. 3086

    High-Throughput Satellite Precoding Algorithm Based on Non-Ideal Channel State Information by Yingzhe DOU, Guanchang XUE, Mingchuan YANG

    Published 2023-03-01
    “…In order to suppress co-channel interference caused by frequency reuse, high-throughput satellite communication systems have begun to study ground interference suppression technologies, including multi-user detection technology applied in the reverse link and precoding technology applied in the forward link.A forward link model was established that took into account the eff ects of free space loss, rain attenuation, and beam gain.Based on the non-ideal channel state information model, the minimum mean square error precoding algorithm was improved, and an improved minimum mean square error precoding algorithm suitable for non-ideal channel state information was proposed.The satellite precoding algorithm considered adopted a more accurate channel model with irrational channel information, and incorporated the non-ideal channel state information into the precoding algorithm and eliminated it.The simulation results showed that the high-throughput satellite precoding algorithm could signifi cantly improved the throughput of the system under the condition of non-ideal channel state information, and also improved the robustness of the system.…”
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  7. 3087

    Thermal Fault Detection and Diagnosis of Electrical Equipment Based on the Infrared Image Segmentation Algorithm by Hongzhao Li

    Published 2021-01-01
    “…The effectiveness of the proposed infrared image segmentation algorithm is verified through the practical application of the infrared image segmentation algorithm in the detection of interior and exterior faults of electrical equipment.…”
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  8. 3088

    COVID-19 World Vaccine Adverse Reactions Based on Machine Learning Clustering Algorithm by Lozan M. Abdulrahman, Adnan Mohsin Abdulazeez, Dathar A. Hasan

    Published 2021-05-01
    Subjects: “…COVID-19 Vaccine Reactions, Machine Learning, Clustering Algorithm, VARSE, Weka…”
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  9. 3089
  10. 3090

    Hurst weighted random early detection algorithm based on self-similar traffic input by HUANG Li-ya, WANG Suo-ping

    Published 2007-01-01
    “…RED as proposed by Floyd was based on the traditional Poisson input model,could not satisfy self-similar na-ture of network traffic.With this in view,an attempt has been made by proposing a modified RED algorithm,the HWRED algorithm with self-similar input.Modified RED algorithm can tune RED parameters according to the Hurst parameter of input traffic.Simulated results show modified algorithm increases evidently stability of queue size,and de-creases packet loss ratio,queue delay and queue delay variability,finally improves link use percentage of network.…”
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    Article
  11. 3091

    A Novel Method for News Recommendation on Websites Using the Clustered-Vectors Optimization Algorithm by Piyanuch Chaipornkaew, Thepparit Banditwattanawong

    Published 2025-01-01
    “…Experimental results indicated that the proposed CVO algorithm outperformed five well-known algorithms, which were TF-IDF, Word2Vec, Doc2Vec, Bag-of-Words (BoW), and Transformer, in terms of predictive performance. …”
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  12. 3092

    A density clustering-based network performance failure big data analysis algorithm by Xiang LI, Yuan LI, Zifei ZHANG, Zhe YANG

    Published 2020-09-01
    “…Facing frequent network security incidents,how to quickly find abnormal data in massive monitoring database and carry out network failure analysis becomes a research difficulty.A density-based network performance failure big data analysis algorithm was proposed,which extracted key performance characteristic indicators through entropy weight analysis,implemented data shaping through data cleaning and standardization,and extracted abnormal performance data on the basis of DBSCAN clustering algorithm.Relying on the real-time massive backbone network link performance data of multiple domestic operators to validated this algorithm,the results shows that compared with the manually manner,the recognition accuracy of the algorithm proposed to the network performance abnormal data is more than 90%,which can well fit for the analysis of real-time Internet network operation failure.…”
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  13. 3093
  14. 3094

    A Group Based Key Sharing and Management Algorithm for Vehicular Ad Hoc Networks by Zeeshan Shafi Khan, Mohammed Morsi Moharram, Abdullah Alaraj, Farzana Azam

    Published 2014-01-01
    “…In this paper, we propose media mixing algorithm to decide what information should be provided to each user and how to provide such information. …”
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  15. 3095

    Optimal Design of Damped Structure with Inerter System Based on Modified Harmony Search Algorithm by Chao Pan, Xiao Han, Hao Wang, Dengke Yang, Li Zhang

    Published 2022-01-01
    “…It is found that the number of iterations and time consumption until convergence required by the modified harmony search algorithm can be reduced by about 20%∼90% compared with the original algorithm, which confirms the effectiveness of the modified algorithm. …”
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  16. 3096

    Tracking algorithm of Siamese network based on online target classification and adaptive template update by Zhiwang CHEN, Zhongxin ZHANG, Juan SONG, Haipeng LEI, Yong PENG

    Published 2021-08-01
    “…Aiming at the problem that tracking algorithm of Siamese network learned the embedded features of the tracked target and the object in the offline training stage, and these embedded features often lacked the target-specific context information, which made these tracking algorithms less robust, a tracking algorithm of the Siamese network based on online target classification and adaptive template update was proposed, which used SiamRPN++ as the baseline algorithm.Firstly, a cross-correlation feature map supervision module for classification was designed in the offline training phase to learn more discriminative embedded features.Secondly, an online target classification module that included an attention mechanism in the online tracking phase was designed, and the online update filter strategy in the module was used to filter out the background noise.Finally, an adaptive template update module was designed to update the target template information using the UpdateNet.The results of experiments on VOT2018 and VOT2019 datasets verify the effectiveness of the proposed algorithm, which brings 13.5% and 18.2% (EAO) improvement respectively compared with the baseline algorithm SiamRPN++.…”
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  17. 3097

    Vehicle Detection Algorithm Based on Embedded Video Image Processing in the Background of Information Technology by Rui Liang, Gaoqing Ji

    Published 2022-01-01
    “…This shows that the algorithm has high accuracy for vehicle parking detection data and can collect information quickly and effectively. …”
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  18. 3098

    A Branch-and-Price Algorithm for Balancing Two-Sided Assembly Lines with Zoning Constraints by Qidong Yin, Xiaochuan Luo, Julien Hohenstein

    Published 2021-01-01
    “…We further propose a branch-and-price (B&P) algorithm that integrates the column generation approach into a branch-and-bound frame. …”
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  19. 3099

    Sizing a Hybrid Renewable Energy System by a Coevolutionary Multiobjective Optimization Algorithm by Wenhua Li, Guo Zhang, Xu Yang, Zhang Tao, Hu Xu

    Published 2021-01-01
    “…Then, a coevolutionary multiobjective optimization algorithm, termed CMOEA-c, is proposed to handle the nonlinear part and the constraints. …”
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  20. 3100

    Research on Moving Target Detection and Tracking Technology in Sports Video Based on SIFT Algorithm by Zhu Mei, Yue Wang

    Published 2022-01-01
    “…This paper combines the SIFT algorithm to carry out the research of sports video moving target detection and tracking technology, to identify sports features, and to improve the sports feature detection algorithm. …”
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