Suggested Topics within your search.
Showing 401 - 420 results of 1,826 for search '"entropy"', query time: 0.04s Refine Results
  1. 401

    Shannon Entropy and K-Means Method for Automatic Diagnosis of Broken Rotor Bars in Induction Motors Using Vibration Signals by David Camarena-Martinez, Martin Valtierra-Rodriguez, Juan P. Amezquita-Sanchez, David Granados-Lieberman, Rene J. Romero-Troncoso, Arturo Garcia-Perez

    Published 2016-01-01
    “…The methodology uses the Shannon entropy to quantify the amount of information provided by the vibration signals, which changes due to the presence of new frequency components associated with the fault. …”
    Get full text
    Article
  2. 402

    An Effective Interval-Valued Intuitionistic Fuzzy Entropy to Evaluate Entrepreneurship Orientation of Online P2P Lending Platforms by Xiaohong Chen, Li Yang, Pei Wang, Wei Yue

    Published 2013-01-01
    “…The limitations of existing methods for calculating entropy of interval-valued intuitionistic fuzzy sets (IVIFSs) are significantly improved by a new entropy measure of IVIFS considered in this paper, and then the essential properties of the proposed entropy are introduced. …”
    Get full text
    Article
  3. 403

    A CEEMDAN-Based Entropy Approach Measuring Multiscale Information Flow between Macroeconomic Conditions and Stock Returns of BRICS by Emmanuel Asafo-Adjei, Anokye Mohammed Adam, Peterson Owusu Junior, Patrick Kwashie Akorsu, Clement Lamboi Arthur

    Published 2022-01-01
    “…The Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN)-based Rényi effective transfer entropy approach is used to establish dynamic flow of information between macroeconomic variables and stock returns of BRICS. …”
    Get full text
    Article
  4. 404

    A Detection Method Against Load Redistribution Attacks in the Interdependence of the Natural Gas Network and Power System Based on Entropy by Yaoying Wang

    Published 2023-09-01
    “…This research proposes an entropy-based load redistribution (LR) attack detection approach for such integrated networks. …”
    Get full text
    Article
  5. 405

    Rough Set Construction and Entropy Weight Evaluation of Urban Higher Education Resource Carrying Capacity Based on Big Data by Lulu Wang, Chao Liu, Muhammad Talha

    Published 2022-01-01
    “…Based on the rough set theory, this paper constructs a rough set of big data of urban higher education resource carrying capacity from the three levels of higher education core resources, urban economic resources and urban basic resources, and evaluates the entropy weight of the city where the university is located. …”
    Get full text
    Article
  6. 406
  7. 407

    Application on Online Process Learning Evaluation Based on Optimal Discrete Hopfield Neural Network and Entropy Weight TOPSIS Method by Chuanshuang Hu, Yongmei Ma, Ting Chen

    Published 2021-01-01
    “…In the process of modelling, the grey correlation analysis method is used to optimize the elements affecting students’ comprehensive evaluation index, and it solves the problem of failure of the model due to the large gap between the factors in the traditional discrete Hopfield neural network model. Then, the entropy right TOPSIS method is used to rank samples with the same evaluation grade. …”
    Get full text
    Article
  8. 408

    Bearing Fault Diagnosis Using a Novel Classifier Ensemble Based on Lifting Wavelet Packet Transforms and Sample Entropy by Lei Zhang, Long Zhang, Junfeng Hu, Guoliang Xiong

    Published 2016-01-01
    “…In order to improve the fault detection accuracy for rolling bearings, an automated fault diagnosis system is presented based on lifting wavelet packet transform (LWPT), sample entropy (SampEn), and classifier ensemble. Bearing vibration signals are firstly decomposed into different frequency subbands through a three-level LWPT, resulting in a total of 8 frequency-band signals throughout the third layers of the LWPT decomposition tree. …”
    Get full text
    Article
  9. 409

    Revealing the Influence Mechanism of Urban Built Environment on Online Car-Hailing Travel considering Orientation Entropy of Street Network by Sai Wang, Jianjun Wang, Weijia Li, Jialin Fan, Mingyu Liu

    Published 2022-01-01
    “…Therefore, the road network orientation entropy indicator is introduced based on the originally built environment elements, and the orientation-order (OO) indicator calculation model is constructed to normalize it. …”
    Get full text
    Article
  10. 410

    Compound Fault Diagnosis for Gearbox Based Using of Euclidean Matrix Sample Entropy and One-Dimensional Convolutional Neural Network by Decai Zhang, Xueping Ren, Hanyue Zuo

    Published 2021-01-01
    “…PFs are input into the matrix sample entropy based on Euclidean distance (MESE), and the PFs which best reflect fault characteristics are selected. …”
    Get full text
    Article
  11. 411
  12. 412

    Health Status Evaluation of Urban Rail Transit Traction Transformers Based on Analytic Hierarchy Process and Entropy Weight Method by ZHANG Mingrui, DUAN Hongwei, XU jie, XU Weijia

    Published 2025-01-01
    “…[Method] A health status evaluation model for urban rail transit traction transformer is established based on AHP (analytic hierarchy process) and EWM (entropy weight method). The hierarchical structure for evaluating the health status of the traction transformer is constructed based on the operation indicator data of the traction transformer. …”
    Get full text
    Article
  13. 413
  14. 414
  15. 415
  16. 416
  17. 417

    Reconstructions of Einstein-Aether Gravity from Ordinary and Entropy-Corrected Versions of Holographic and New Agegraphic Dark Energy Models by Ujjal Debnath

    Published 2014-01-01
    “…Assuming two types of the power law solutions of the scale factor, we have reconstructed the unknown function F(K) from HDE and NADE and their entropy-corrected versions (ECHDE and ECNADE). We also obtain the EoS parameter for Einstein-Aether gravity dark energy. …”
    Get full text
    Article
  18. 418
  19. 419
  20. 420