Showing 2,481 - 2,500 results of 19,511 for search '"Algorithms"', query time: 0.09s Refine Results
  1. 2481

    Feature Frequency Extraction Algorithm based on PCA and MK-MOMEDA and Its Application by Jiawei Zheng, Qihong Liu, Weiguang Li, Xuezhi Zhao, Guochen Li

    Published 2020-12-01
    “…In the algorithm,PCA is used to perform noise reduction processing on the original signal to obtain a reconstructed signal. …”
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  2. 2482

    The DTN Routing Algorithm Based on Markov Meeting Time Span Prediction Model by En Wang, Yongjian Yang, Bing Jia, Tingting Guo

    Published 2013-09-01
    “…Simulation results suggest that this algorithm efficiently improves the delivery rate and reduces the average delay.…”
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  3. 2483

    Wind Speed Forecast Based on the LSTM Neural Network Optimized by the Firework Algorithm by Bilin Shao, Dan Song, Genqing Bian, Yu Zhao

    Published 2021-01-01
    “…Aiming at hyperparameter optimization in a combined forecasting method, a wind speed prediction model based on the long short-term memory (LSTM) neural network optimized by the firework algorithm (FWA) is proposed. Focusing on the real-time sudden change and dependence of wind speed data, a wind speed prediction model based on LSTM is established, and FWA is used to optimize the hyperparameters of the model so that the model can set parameters adaptively. …”
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  4. 2484

    A Deadline-Constrained Scheduling Algorithm for Intensive-Instance Serviceflows in Cloud Environment by Wei Liu, Taoshen Li, Ruwei Huang

    Published 2013-12-01
    “…The experimental results in CloudSim show that the algorithm compared with others algorithm saves the execution cost with meeting the user-defined deadline, avoids the fierce competition of cheaper services and improves the success ratio of the scheduling.…”
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  5. 2485

    A distributed adaptive local searching algorithm for wireless sensor network localization by Oscar Osvaldo Saldaña Hernández, Juan Cota-Ruiz, Rafael Gonzalez-Landaeta, Ernesto Sifuentes

    Published 2016-10-01
    “…In this article, we propose a distributed range-based localization algorithm for wireless sensor network. The algorithm is mainly based on an adaptively local circular searching area where each unknown sensor must find inside a position that minimizes the error distance with neighboring sensors using a local function. …”
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  6. 2486
  7. 2487

    TOOL WEAR STATE MONITORING BASED ON WAVELET PACKET BP_ADABOOST ALGORITHM by ZHU Xiang, XIE Feng

    Published 2019-01-01
    “…The experimental result shows that the BP <sub>A</sub>da Boost algorithm can effectively diagnose the wear state of the tool in CNC machine tools compared with the SVM algorithm.…”
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  8. 2488
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  10. 2490

    An Incremental Interesting Maximal Frequent Itemset Mining Based on FP-Growth Algorithm by Hussein A. Alsaeedi, Ahmed S. Alhegami

    Published 2022-01-01
    “…The massive volume of data creates an imminent need to design incremental algorithms for the maximal frequent itemset mining in order to handle incremental data over time. …”
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  11. 2491

    Multifeature Contrast Enhancement Algorithm for Digital Media Images Based on the Diffusion Equation by Jijun Wang, Yi Yuan, Guoxiang Li

    Published 2022-01-01
    “…Finally, the significance means a value of super pixel blocks is calculated in superpixel units, and the image is segmented into objects and backgrounds by combining with the Otsu threshold segmentation algorithm to mention the image. In this paper, the proposed algorithm experiments with several sets of Kor Kor resolution remote sensing images, respectively, and the Markov random field model and fully convolutional network (FCN) algorithm are used as the comparison algorithm. …”
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  12. 2492

    A Robust k-Means Clustering Algorithm Based on Observation Point Mechanism by Xiaoliang Zhang, Yulin He, Yi Jin, Honglian Qin, Muhammad Azhar, Joshua Zhexue Huang

    Published 2020-01-01
    “…The k-means algorithm is sensitive to the outliers. In this paper, we propose a robust two-stage k-means clustering algorithm based on the observation point mechanism, which can accurately discover the cluster centers without the disturbance of outliers. …”
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  13. 2493

    Service function chain deployment algorithm based on optimal weighted graph matching by Dan LI, Julong LAN, Peng WANG, Yuxiang HU

    Published 2019-03-01
    “…Service function chain can support flexible network service requirement by linking virtual network functions.Aiming at the problem of service function chain deployment in a resource-constrained network,an algorithm for service function chain deployment based on optimal weighted graph matching was proposed.The service function chains was composed into graphs of functional topography,and the optimal matching results between graphs of functional topology and physical topology was obtained using eigendecomposition approach,and furtherly the matching results by hill-climbing method was optimized.Simulation results show that,the proposed algorithm can reduce the required bandwidth to deploy service function chains,balance the load of nodes and bandwidth of links,and support more service requests.What is more,the algorithm has a lower computation complexity and higher time efficience.…”
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  14. 2494

    Dynamic Beam Hopping Algorithm for LEO Satellite Systems Based on User Grouping by Qing SHU, Weibiao LI, Zuolin JIN, Zhong ZHENG, Yongbo ZHANG, Zesong FEI

    Published 2023-12-01
    “…., the number of concurrently serving users is increased.To address the above problems, it proposed a dynamic beam hopping (BH) scheme based on user grouping for communication service coverage.The proposed method utilized the sparsity of the angular domain channel distribution to adaptively divide user groups accorded to the beam direction where the user energy is maximum.The number of co-channel user groups was constrained by power and interference constraints, limiting the reduction of communication traffic delay, as power limitations on the satellite make the number of RF chains limited and increased the number of simultaneously served user groups increased the interference between user groups.So the BH scheme with beam cluster grouping was further proposed, when the beam clusters reduced the user delay by increased the number of users served at the same moment.Since the above problem was non-convex, it adopt a data-driven determinantal point process (DPP) learning method to simplify the beam scheduling in BH scheme.Simulation results showed that the dynamic BH algorithm based on user grouping could effectively reduce the average user delay by more than 52% compared with the single-beam scheme, also verifies the versatility of the DPP learning.…”
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  15. 2495

    An Improved Marriage in Honey Bees Optimization Algorithm for Single Objective Unconstrained Optimization by Yuksel Celik, Erkan Ulker

    Published 2013-01-01
    “…The IMBO algorithm’s performance and its success are tested on the well-known six unconstrained test functions and compared with other metaheuristic optimization algorithms.…”
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  16. 2496

    An Algorithm That Predicts CSI to Allocate Bandwidth for Healthcare Monitoring in Hospital's Waiting Rooms by Di Lin, Fabrice Labeau

    Published 2012-01-01
    “…We analyze the reliability of the proposed algorithm by deducing the standard error of estimated CSI with this algorithm. …”
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  17. 2497
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  19. 2499

    Resource allocation optimization algorithm based on double populations differential evolution in WSN by Xiaochen HAO, Liyuan WANG, Jinshuo LIU, Lixia XIE, Wenhuan ZHANG

    Published 2018-04-01
    “…A resource allocation algorithm was proposed for improving the network performance through jointing channel allocation,power control and timeslot allocation in multi-radio multi-channel wireless sensor network.More specifically,the network was modeled as a multi-objective optimization problem where the energy efficient,resource allocation balanced,networks capacity maximized were considered under the link interference and link conflict constraints.Due to the problem was NP-Hardness,a simple centralized algorithm——differential evolution based on double populations was used to solve the constrained multi-objective optimization problem.The simulation results show that the proposed algorithm significantly improves the network capacity and energy efficiency and guarantees the resource allocation balancing while reducing link interference and avoiding link conflict.…”
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  20. 2500

    Pilot scheduling algorithm based on cell classification-cross entropy for massive MIMO by Yinhui YU, Heng ZHOU, Ying YANG, Hao PAN, Jiapeng REN

    Published 2018-12-01
    “…Pilot scheduling problem belongs to the arrangement optimization problem, and the algorithm computational complexity of greedy algorithm to search the optimal solution is greatly. …”
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