Showing 281 - 300 results of 24,780 for search '(improved OR improve) algorithm', query time: 0.24s Refine Results
  1. 281

    Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication by Taifei ZHAO, Longfei LIU, Jing WANG, Liyang YANG

    Published 2019-03-01
    “…There are serious intersymbol interference (ISI) and signal attenuation in wireless ultraviolet communication system.Aiming at this problem,an improved constant modulus fractionally spaced equalizer (CMA-FSE) based on signal-to-noise (SNR) estimation was proposed.The algorithm combined the fractionally spaced equalizer (FSE) and constant modulus algorithm (CMA) for blind equalization of wireless ultraviolet channels.The input SNR was measured by the mean square value of the received signal,and it was used to determine the best iterative step to ensure the convergence of the equalization algorithm.Simulation results show that the improved CMA-FSE algorithm can converge rapidly under various SNR,and it can effectively suppress ISI and improve the BER performance of the system.Compared with the existing algorithms,the improved algorithm is more useful in channel tracking and noise suppression.…”
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  2. 282

    Improved information hiding algorithm based on twice positioning in coding channel by Li-quan CHEN, Miao LU, Ai-qun HU, Xiao-yan SUN

    Published 2013-12-01
    “…Based on analysis of existing information hiding algorithms and capacities in coding channel,the defects of those existing algorithms were pointed out,and an improved information hiding algorithm with capacity upper limit analysis and based on twice positioning was proposed.the proposed algorithm,the information hiding capacity upper limit is firstly computed before embedding,and used for comparison with the size of hiding secret data.Then,twice posi-tioning scheme and cyclic shift mechanism for choosing the embedding position were used in the proposed algorithm.Simulation results show that,compared with those existing algorithms,the proposed algorithm is able to avoid the risk of exposure of the secret channel caused by capacity exceeding of hiding data.It can not only improve the randomness of the embedding position,but also avoid the risk of overlap among different secret data.The hiding performances of the coding channel information hiding system are improved.…”
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  3. 283

    Key Transmission Section Search Strategy Based on Improved Clustering Algorithm by Jie WANG, Ming DING, Lei SUN, Liubing WANG

    Published 2022-06-01
    “…In order to effectively avoid the occurrence of cascading failure due to the loss of faulted or overloaded lines, a key transmission section search method based on an improved fuzzy C-means clustering algorithm is proposed. …”
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    An intelligent comprehensive scoring approach based on improved differential evolution algorithm by WANG Rongsheng, WANG Xiaogang, LONG Yixuan, LYU Yisheng, YUAN Zhiming

    Published 2025-03-01
    “…Secondly, an intelligent comprehensive scoring approach had been proposed based on improved differential evolution algorithm, which introduced the following three improvements to the traditional differential evolution algorithm framework: a real encoding and decoding method was developed based on the score weights. …”
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  7. 287

    Path Planning Algorithm for Manipulators in Complex Scenes Based on Improved RRT* by Xiqing Zhang, Pengyu Wang, Yongrui Guo, Qianqian Han, Kuoran Zhang

    Published 2025-01-01
    “…The effectiveness and superiority of the improved algorithm are determined by comparing it with the existing algorithms.…”
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    Robot inverse kinematics solution based on an improved whale optimization algorithm by WANG Ting, WU Quanjun

    Published 2025-02-01
    “…In order to overcome these problems, an improved whale optimization algorithm was used to solve its inverse kinematics.MethodsImproved whale optimization algorithm was proposed by integrating the mutation and selection operations of differential evolution algorithm into the whale optimization algorithm. …”
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  12. 292

    Improved Backpropagation Using Genetic Algorithm for Prediction of Anomalies and Data Unavailability by Gunadi Widi Nurcahyo, Akbari Wafridh, Yuhandri

    Published 2024-08-01
    “…To enhance BPNN's effectiveness, this study integrates Genetic Algorithm (GA) optimization, forming the BPGA method. …”
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  13. 293

    Bank Customer Segmentation and Marketing Strategies Based on Improved DBSCAN Algorithm by Xiaohua Yan, Yufeng Li, Fuquan Nie, Rui Li

    Published 2025-03-01
    “…The proposed KM-DBSCAN algorithm, which combines K-means and DBSCAN, is used for customer segmentation. …”
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  14. 294

    An Improved Hybrid Genetic Algorithm with a New Local Search Procedure by Wen Wan, Jeffrey B. Birch

    Published 2013-01-01
    “…One important challenge of a hybrid genetic algorithm (HGA) (also called memetic algorithm) is the tradeoff between global and local searching (LS) as it is the case that the cost of an LS can be rather high. …”
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    Improvement on moving object tracking method for network video surveillance by Guang-xing HAN, Chong-rong LI

    Published 2014-10-01
    “…To improve the performance of the traditional MeanShift algorithm based on Kalman filter,acceleration to solve the problem that the moving target changes the direction abruptly is proposed.Another algorithm using simplified Camshift algorithm to keep track of the blob size has low time complexity which meets the real time requirement of network video surveillance.…”
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    Set-Valued Approximation—Revisited and Improved by David Levin

    Published 2025-04-01
    “…These enhancements improve accuracy and stability in handling set-valued functions with changing topologies.…”
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