Showing 421 - 440 results of 7,635 for search 'mean algorithm', query time: 0.10s Refine Results
  1. 421

    NON HIERARCHICAL K-MEANS ANALYSIS TO CLUSTERING PRIORITY DISTRIBUTION OF FUEL SUBSIDIES IN INDONESIA by Ani Budi Astuti, Abdi Negara Guci, Viky Iqbal Azizul Alim, Laila Nur Azizah, Meirida Karisma Putri, Wigbertus Ngabu

    Published 2023-09-01
    “…Therefore, there is a need for appropriate action from the government in determining related policies. K-Means multivariate cluster analysis is a non-hierarchical cluster method that is popularly used, one of which is used in Machine Learning algorithms, especially Unsupervised Learning. …”
    Get full text
    Article
  2. 422
  3. 423
  4. 424

    Improvement in panchromatic-guided denoising algorithm for research on Beijing SDGSAT-1 luminous remote sensing image denoising algorithm by Lihan Zhang, Linyan Bai, Ruren Li, Jianzhong Feng, Penglong Wang, Chao Chen

    Published 2025-08-01
    “…In this study, based on existing denoising algorithms, the OTSU threshold method is combined with a convolution window to identify noisy pixels. …”
    Get full text
    Article
  5. 425
  6. 426

    Vibe++ background segmentation method combining MeanShift clustering analysis and convolutional neural network by Zihao LIU, Xiaojun JIA, Sulan ZHANG, Zhiling XU, Jun ZHANG

    Published 2021-03-01
    “…To solve problems of noise points and high segmentation error for image shadow brought by traditional Vibe+ algorithm, a novel background segmentation method (Vibe++) based on the improved Vibe+ was proposed.Firstly, binarization image was acquired by using traditional Vibe+ algorithm from surveillance video.The connected regions were marked based on the region-growing domain marker method.The area threshold was obtained with difference characteristics of boundary area, the connected regions below threshold were treated as disturbing points.Secondly, five different kernel functions were introduced to improve the traditional MeanShift clustering algorithm.After improving, this algorithm was fused effectively with partitioned convolutional neural network.Finally, program of classification of trailing area, non-trailing area and trailing edge area in the resulting image was performed.Position coordinates of the trailing area were calculated and confirmed, and the trailing area was quickly deleted to obtain the final segmentation result.This segmentation accuracy was greatly improved by using the proposed method.The experimental results show that the proposed algorithm can achieve segmentation accuracy of more than 98% and has good application effect and high practical value.…”
    Get full text
    Article
  7. 427

    Monitored Reconstruction: Computed Tomography as an Anytime Algorithm by Konstantin Bulatov, Marina Chukalina, Alexey Buzmakov, Dmitry Nikolaev, Vladimir V. Arlazarov

    Published 2020-01-01
    “…Due to stopping at different times for different objects, the proposed approach allows to achieve a higher mean reconstruction quality for a given mean number of X-ray projections. …”
    Get full text
    Article
  8. 428

    Optimasi Algoritma Naive Bayes dengan Diskritisasi K-Means pada Diagnosis Penyakit Jantung by Nafa Fajriati, Budi Prasetiyo

    Published 2023-07-01
    “…K-means discretization changes the value of each continuous attribute into discrete categories in the form of k clusters formed from the K-means algorithm process. …”
    Get full text
    Article
  9. 429

    Hybrid Genetic Algorithm with Filters to Image Enhancement by Baydaa Bhnam

    Published 2013-12-01
    “…The new suggested algorithm <strong>HGAF</strong> uses popular (mean , median and min-max filters) and other proposed filters as fitness function for it in order to design eight proposed genetic filters. …”
    Get full text
    Article
  10. 430

    Balanced Cluster Head Selection Based on Modified -Means in a Distributed Wireless Sensor Network by Sasikumar Periyasamy, Sibaram Khara, Shankar Thangavelu

    Published 2016-03-01
    “…The results show that Mk- means (modified k -means) algorithm was found to outperform the existing clustering algorithms owing to its unique multiple cluster head methodology.…”
    Get full text
    Article
  11. 431

    A Novel Algorithm in the Management of Hypoglycemia in Newborns by Swapna Naveen, Chikati Rosy, Hemasree Kandraju, Deepak Sharma, Tejopratap Oleti, Srinivas Murki

    Published 2014-01-01
    “…Conclusion. A new and novel algorithm in the management of hypoglycemia in neonates is as safe as the standard protocol and requires further testing before routine implementation.…”
    Get full text
    Article
  12. 432

    Fusion spectrum sensing algorithm based on eigenvalues by Wenjing ZHAO, He LI, Minglu JIN

    Published 2019-11-01
    “…Aiming at the problem of inefficient use of spectrum resources,a fusion spectrum sensing algorithm based on eigenvalues was proposed to effectively achieve dynamic spectrum sharing.The test statistics were constructed by employing the maximum eigenvalue,the trace and the geometric mean of all eigenvalues of the sample covariance matrix.The detection probability and false alarm probability of the proposed method were analyzed using the random matrix theory,and the analytical representation of the theoretical threshold was obtained.In addition,the parameter selection of the proposed algorithm was analyzed theoretically.Simulation results show that the proposed algorithm has better detection ability than the existing eigenvalue detection algorithm.…”
    Get full text
    Article
  13. 433

    Hybrid genetic algorithm based optimization of pilotpattern by Hanbing ZHENG, Xiang YU, Weiwei WANG

    Published 2016-09-01
    “…In OFDM system,sparse channel estimation based on compressed sensing(CS)can make full use of the inherent sparse degree of the wireless channel,which can reduce the pilot overhead and improve the spectrum efficiency.Therefore,a new method based on hybrid genetic algorithm was investigated for the pilot design of CS channel estimation,which was based on the minimization of the matrix cross correlation in the CS theory.In this method,genetic algorithm was used to obtain the initial sub-optimal pilot sequence,and then combined with the pilot position and pilot power,each entry of pilot pattern could be sequentially updated and optimized to make the minimum correlation of measurement matrix.Simulation results show that the proposed method can ensure a better mean square error and bit error rate compared to the pseudo-random pilot design and the equal distance pilot design.…”
    Get full text
    Article
  14. 434

    Nonlinear Gossip Algorithms for Wireless Sensor Networks by Chao Shi, Yuanshi Zheng, Hongbing Qiu, Junyi Wang

    Published 2014-01-01
    “…By using Lyapunov theory, Lagrange mean value theorem, and stochastic Lasalle’s invariance principle, we prove that the nonlinear single gossip algorithms can converge to the average of initial states with probability one. …”
    Get full text
    Article
  15. 435

    Technique for target recognition based on intuitionistic fuzzy c-means clustering and kernel matching pursuit by Yang LEI, Wei-wei KONG, Ying-jie LEI

    Published 2012-11-01
    “…Kernel matching pursuit requires every step of searching process be global optimal searching in the redundant dictionary of function.Namely,the dictionary learning time of KMP was too long.To the above drawbacks,a novel technique for KMP based on IFCM was proposed to substitute local searching for global searching by the property superiority of dynamic clustering performance,which was also the superiority in Intuitionistic fuzzy c-means algorithm.Then two testing including classification and effectiveness were carried out towards four real sample data.Subsequently,high resolution range profile (HRRP)was selected from the classical properties of target recognition in e middle ballistic trajectory,which were extracted for getting sub-range profile.Finally,three algorithms including FCM,KMP,IFCM-KMP were carried out respectively towards different kinds of sub-range profile samples in emulation platform,the conclusion of which fully demonstrates that the IFCM-KMP algorithm is superior over FCM and KMP when it comes to target recognition in the middle ballistic trajectory.…”
    Get full text
    Article
  16. 436

    Automatic Leak Detection in Buried Plastic Pipes of Water Supply Networks by Means of Vibration Measurements by Alberto Martini, Marco Troncossi, Alessandro Rivola

    Published 2015-01-01
    “…The experimental campaign is here described and discussed. The proposed algorithm, enhanced by means of proper signal filtering techniques, was successfully tested on all monitored leaks, thus proving effective for leak detection purpose.…”
    Get full text
    Article
  17. 437

    Research on Credit Card Default Prediction Based on k-Means SMOTE and BP Neural Network by Ying Chen, Ruirui Zhang

    Published 2021-01-01
    “…Aiming at the problem that the credit card default data of a financial institution is unbalanced, which leads to unsatisfactory prediction results, this paper proposes a prediction model based on k-means SMOTE and BP neural network. In this model, k-means SMOTE algorithm is used to change the data distribution, and then the importance of data features is calculated by using random forest, and then it is substituted into the initial weights of BP neural network for prediction. …”
    Get full text
    Article
  18. 438

    Application of the Mean-shift Segmentation Parameters Estimator (MSPE) to VHSR satellite images: Tetuan-Morocco by O. Benarchid, N. Raissouni, J.A. Sobrino, A. El Ayyan

    Published 2015-06-01
    “…MSPE estimates the parameters values for the Mean-shift Segmentation (MS) algorithm. However, this algorithm needs as inputs: i) existing vector database and, ii) spectral data to define automatically the segmentation parameter values. …”
    Get full text
    Article
  19. 439

    A Multi-Objective Particle Swarm Optimization Approach for Optimizing K-Means Clustering Centroids by Aina Latifa Riyana Putri, Joko Riyono, Christina Eni Pujiastuti, Supriyadi

    Published 2025-06-01
    “…The K-Means algorithm is a popular unsupervised learning method used for data clustering. …”
    Get full text
    Article
  20. 440

    Research on Particle Filter Video Tracking Algorithms by YU Shuchun, TONG Xiaoyu

    Published 2020-08-01
    “…Aiming at the problem of insufficient robustness of moving target tracking in complex scenes, a particle filter target tracking algorithm based on CNN feature extraction is proposed CNN selflearning mechanism is used to extract highlevel semantic features of objects in images Chaotic sequence variable scale firefly algorithm is introduced to improve the accuracy of target recognition A particle filter tracking algorithm combining mean shift and weight optimization is constructed to optimize the weight of particles, improve the diversity of particle sets and make video tracking more accurate The simulation results show that the proposed algorithm can effectively adapt to occlusion, illumination, violent motion and other scenes, and has good adaptability and high realtime performance to illumination change, scale change, occlusion and so on The results of comparison with seven other methods show that under the same experimental conditions, the tracking success rate and tracking accuracy of this method are 5%~40% higher than those of other methods…”
    Get full text
    Article