Showing 1,921 - 1,940 results of 19,511 for search '"Algorithms"', query time: 0.09s Refine Results
  1. 1921

    A Gradient-Based Reinforcement Learning Algorithm for Multiple Cooperative Agents by Zhen Zhang, Dongqing Wang, Dongbin Zhao, Qiaoni Han, Tingting Song

    Published 2018-01-01
    “…Within the MARL category, this paper proposes the probability of maximal reward based on the infinitesimal gradient ascent (PMR-IGA) algorithm to reach the maximal total reward in repeated games. …”
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    Article
  2. 1922

    Levenberg-Marquardt Algorithm for Mackey-Glass Chaotic Time Series Prediction by Junsheng Zhao, Yongmin Li, Xingjiang Yu, Xingfang Zhang

    Published 2014-01-01
    “…In order to overcome these problems, we introduce the Levenberg-Marquardt algorithm (LMA). Firstly, a rough introduction is given to the multilayer perceptron, including the structure and the model approximation method. …”
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  3. 1923

    Research on side information generation algorithm for Wyner-Ziv video coding by SONG Bin, HE Hong, LIU Hai-hua, QIN Hao

    Published 2010-01-01
    “…To reduce the block artifacts and ghosting artifacts of side-information frame in Wyner-Ziv video coding,an overlapped block bi-directional motion compensation algorithm based on the original-image correlation was proposed.Firstly,the correlation of the original image in the encoder is calculated and sent to the decoder.Secondly,the correlation data is used to motion estimation in the decoder to get more accurate motion vector.Then the side information is gener-ated by bi-directional motion compensation.Compared with the existing algorithm,the proposed method can increase the average PSNR(peak signal-to-noise ratio) by 1.5~3dB,and also significantly improve the subjective quality of the side information.…”
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  4. 1924

    A Detection Algorithm for the BOC Signal Based on Quadrature Channel Correlation by Bo Qian, Guolei Zheng, Yongxin Feng

    Published 2018-01-01
    “…In order to solve the problem of detecting a BOC signal, which uses a long-period pseudo random sequence, an algorithm is presented based on quadrature channel correlation. …”
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    Article
  5. 1925
  6. 1926

    Research and implementation of mobile DPI association algorithm with big data technology by Xiaosong LIU, Yi’an MA

    Published 2017-12-01
    “…In order to solve the problem of traffic usage caused by the increasing penetration rate of 4G in recent years,an algorithm that uses mobile DPI detailed bill and billing bill was proposed,and big data platform was adopted.The related processing technology implements the algorithm and shows the effect of the current network operation evaluation.…”
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  7. 1927

    Parameter optimization design of reducer gears based on differential evolution algorithm by MA YuFeng, NING Xin, ZHENG YanLing, ZHAO BingHao

    Published 2024-06-01
    “…To minimize gear volume, a light-weight optimization model was established with the constraint of fatigue damage, and differential evolution algorithm was then adopted to solve the model. Experimental results show that the designed model can find the optimal gear parameters quickly and accurately, and the best optimized parameters can be obtained when the continuous load spectrum is used and the low amplitude load strengthening effect is taken into consideration. …”
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    Article
  8. 1928

    Machine Learning Algorithm for Estimating Surface PM2.5 in Thailand by Pawan Gupta, Shanshan Zhan, Vikalp Mishra, Aekkapol Aekakkararungroj, Amanda Markert, Sarawut Paibong, Farrukh Chishtie

    Published 2021-09-01
    “…Abstract We have used NASA’s Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) reanalysis data of aerosols and meteorology into a machine learning algorithm (MLA) to estimate surface PM2.5 concentration in Thailand. …”
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  9. 1929

    Robust resource allocation algorithm for multicarrier NOMA security communication system by Yu ZHANG, Xiongwen ZHAO, Xiaoqing WANG, Suiyan GENG, Peng QIN, Zhenyu ZHOU

    Published 2022-03-01
    “…To improve the spectrum efficiency and enhance the information security of wireless network, a sum secrecy rate maximization-based robust resource allocation algorithm was proposed for a downlink multicarrier NOMA security communication system.Firstly, the artificial noise (AN) precoding vector was designed to be orthogonal to the legitimate channel, so that the legitimate transmission would not be affected by the AN.Then, considering the constraints of rate requirement of each user and the maximum transmit power of base station, a joint AN precoding, downlink data precoding and subcarrier allocation optimization problem was formulated under eavesdropping channel uncertainties.To solve that non-convex problem, it was decomposed into two joint optimization subproblems: precoding optimization and subcarrier allocation.The former was solved based on S-procedure and block coordinate descent (BCD) algorithm, the latter was solved by dynamic matching theory.Simulation results demonstrate that the proposed algorithm has good robustness and can effectively improve the sum secrecy rate.…”
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    Article
  10. 1930

    Efficient parallel MAP timing recovery algorithm for TDS-OFDM systems by Yangguang LI, Jianrong BAO, Bin JIANG, Chao LIU

    Published 2018-01-01
    “…According to the problems of the existing timing recovery algorithm with the time-domain orthogonal frequency division multiplexing (TDS-OFDM) modulation in the wireless multimedia transmissions of 5G communications,such as slow processing speed and big theoretical distance,a parallel MAP timing recovery algorithm was proposed.Specifically,the Lagrangian interpolation was used and the amplitude and polarity change of the optimal sampling points were extracted to detect the timing error efficiently.Meanwhile,with the parallel maximum a posteriori (MAP) criterion,the timing error estimate was obtained at high speed.The simulation results show that the accuracy of the proposed algorithm is improved,when comparing with the existing MM algorithm,Gardner algorithm and others.The estimation result is very close to the MAP timing recovery algorithm,the difference is about 2 dB.…”
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  11. 1931

    Accounting Data Encryption Processing Based on Data Encryption Standard Algorithm by Meixi Chen

    Published 2021-01-01
    “…The 3DES algorithm is a cascade of the DES algorithm, and its encryption process is based on the DES algorithm principle. …”
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    Article
  12. 1932

    On the Convergence of a Smooth Penalty Algorithm without Computing Global Solutions by Bingzhuang Liu, Changyu Wang, Wenling Zhao

    Published 2012-01-01
    “…We consider a smooth penalty algorithm to solve nonconvex optimization problem based on a family of smooth functions that approximate the usual exact penalty function. …”
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  13. 1933

    Theoretical and methodological approaches to the problem of student’s health in the algorithm of recreational activities by Viacheslav Zaytzev, Krzysztof Prusik, Svitlana Manucharyan

    Published 2022-06-01
    “…The aim of the study is theoretical and methodological approaches to the problem of student’s health in the algorithm of recreational activities. Materials and Methods. …”
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    Article
  14. 1934

    One-Step Leapfrog LOD-BOR-FDTD Algorithm with CPML Implementation by Yi-Gang Wang, Yun Yi, Bin Chen, Hai-Lin Chen, Kang Luo, Run Xiong

    Published 2016-01-01
    “…The equations of the proposed algorithm are obtained by the algebraic manipulation of those used in the conventional LOD-BOR-FDTD algorithm. …”
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    Article
  15. 1935

    An Aeromagnetic Compensation Algorithm for Aircraft Based on Fuzzy Adaptive Kalman Filter by Yao Zhang, Yu-Xin Zhao, Shuai Chang

    Published 2014-01-01
    “…In this paper, the classical aircraft aeromagnetic compensation algorithm based on Leliak Model is analyzed and an aircraft aeromagnetic compensation algorithm based on fuzzy adaptive Kalman filter is proposed, which is a new approach for aircraft to achieve aeromagnetic compensation. …”
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  16. 1936

    Application of Random Dynamic Grouping Simulation Algorithm in PE Teaching Evaluation by Haitao Hao

    Published 2021-01-01
    “…To address this problem, a stochastic simulation-based comprehensive evaluation solution algorithm based on the idea of “Monte Carlo simulation” is proposed, and the corresponding ranking method is investigated, which is characterized by generating evaluation conclusions with probability (reliability) information, and thus has more advantages than the absolute conclusion form in terms of problem interpretability. …”
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  17. 1937
  18. 1938
  19. 1939

    Two-Dimensional AOA Estimation Based on a Constant Modulus Algorithm by Saleh O. Al-Jazzar, Zoubir Hamici, Sami Aldalahmeh

    Published 2017-01-01
    “…We propose a two-dimensional (2D) angle of arrival (AOA) estimator using the algebraic constant modulus algorithm (ACMA). This algorithm was originally introduced to estimate the one-dimensional (1D) AOA. …”
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  20. 1940

    Agent-based dynamic spectrum trading algorithm in cognitive radio network by Shi-bing ZHANG, Guo-dong ZHANG, Zhi-hua BAO

    Published 2013-03-01
    “…In order to improve the benefits generated by spectrum sharing, the spectrum management was studied and the agent-based dynamic spectrum trading algorithm was proposed. In the algorithm, the agent was used as a medium for spectrum trading, which reduced the huge system overhead among multi-primary service providers (PSP) and mul-ti-secondary users (SU). …”
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