Showing 941 - 960 results of 78,466 for search '"model"', query time: 0.14s Refine Results
  1. 941

    Selenophysics and models of the lunar three-layered mantle by E.V. Kronrod, Y.A. Nefedyev, V.A. Kronrod, O.L. Kuskov, A.O. Andreev

    Published 2019-03-01
    Subjects: “…lunar internal structure models…”
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    Article
  2. 942

    Theoretical models for chronotherapy: Periodic perturbations in hyperchaos by Juvencio Alberto Betancourt-Mar, Víctor Alfonso Méndez-Guerrero, Carlos Hernández-Rodríguez, José Manuel Nieto-Villar

    Published 2010-05-01
    “…In this work, a hyperchaotic system was used as a model for chronotherapy. We applied a periodic perturbation to a variable, varying the period and amplitude of forcing. …”
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    Article
  3. 943
  4. 944

    Multilayer neural network model for unbalanced data by Xue ZHANG, Zhiguo SHI, Xuan LIU

    Published 2018-06-01
    “…Classification of unbalanced data often has low performance of the classifier because of the unbalance of data between classes.Using AUC (the area under the ROC curve) as evaluation index,combined with one class F-score feature selection and genetic algorithm,a multilayer neural network model was established,and a more favorable feature set for unbalanced data classification was selected,so as to establish a deeper model suitable for classification of unbalanced data.Based on Tensor Flow,a multilayer neural network model was established.Using four different UCI datasets for testing,and comparing with the traditional machine learning algorithms such as Naive Bayesian,KNN,neural networks,etc,the performance of the proposed model built on the unbalanced data classification is more excellent.…”
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    Article
  5. 945
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  7. 947

    Assessment of the accuracy of open digital terrain models by A. S. Korotin, E. V. Popov

    Published 2024-09-01
    Subjects: “…digital terrain model…”
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    Article
  8. 948
  9. 949

    Inverse problem of cyclographic modeling of spatial curve by T. M. Myasoedova, K. L. Panchuk, E. V. Lyubchinov

    Published 2022-04-01
    “…The objective of the present study is to justify the possibility of constructive and analytic solution to the inverse problem of cyclographic modeling of a curve of space R3 and development of a respective algorithm. …”
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    Article
  10. 950
  11. 951

    Co-pairwise ranking model for item recommendation by Bin WU, Yun CHEN, Zhongchuan SUN, Yangdong YE

    Published 2019-09-01
    “…Most of existing recommendation models constructed pairwise samples only from a user’s perspective.Nevertheless,they overlooked the functional relationships among items--A key factor that could significantly influence user purchase decision-making process.To this end,a co-pairwise ranking model was proposed,which modeled a user’s preference for a given item as the combination of user-item interactions and item-item complementarity relationships.Considering that the rank position of positive sample and the negative sampler had a direct impact on the rate of convergence,a rank-aware learning algorithm was devised for optimizing the proposed model.Extensive experiments on four real-word datasets are conducted to evaluate of the proposed model.The experimental results demonstrate that the devised algorithm significantly outperforms a series of state-of-the-art recommendation algorithms in terms of multiple evaluation metrics.…”
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    Article
  12. 952

    Rich Dynamics of an Epidemic Model with Saturation Recovery by Hui Wan, Jing-an Cui

    Published 2013-01-01
    “…A SIR epidemic model is proposed to understand the impact of limited medical resource on infectious disease transmission. …”
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    Article
  13. 953

    3D MIMO channel modeling and simulations by Xiongwen ZHAO, Mengyuan ZHANG, Rui ZHANG, Shu LI, Leke LIN

    Published 2016-08-01
    “…The existing MIMO channel simulation models are based on two-dimensional(2D)plane and can’t match with a three-dimensional(3D)radio propagation environment.A 3D MIMO channel simulation platform based on WINNER channel model was set up.After adding the vertical dimension in the model,the array patterns should be extended from 2D to 3D and 3D MIMO channel simulations were implemented.The simulation results of 3D MIMO channel parameters were validated by comparisons with the 3D measurements for an urban micro cell,good agreements could be observed.Simulation results show that the 3D channel correlation is bigger than 2D,however, its capacity has bigger improvement compared with 2D.…”
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    Article
  14. 954

    The Danger Model Approach to the Pathogenesis of the Rheumatic Diseases by César Pacheco-Tena, Susana Aideé González-Chávez

    Published 2015-01-01
    “…The danger model was proposed by Polly Matzinger as complement to the traditional self-non-self- (SNS-) model to explain the immunoreactivity. …”
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  15. 955
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  17. 957

    Transdisciplinary models of hydraulic drives of mobile machinery by A. V. Puzanov

    Published 2019-02-01
    “…Modern drive engineering requires a comprehensive analysis of all work processes in hydraulic drives, solving the problems of modeling the technological processes of their production using mathematical and software tools of various physicality.The article proposes an approach to the development of hydrodrives of mobile equipment based on transdisciplinary models of instruments and control systems. …”
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  18. 958
  19. 959

    Voltage Degradation Model of Thin Film Capacitors by T. M. Berlicki

    Published 1985-01-01
    “…A degradation model of thin film capacitors is presented. This model takes into consideration that: (a) the damage rate dD/dt is a function of the damage value D, and (b) the critical damage Dc is a function of working voltage. …”
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  20. 960

    Stability analysis of parameters of the GDP components models by Bronislava Kaminskienė, Vitalija Avdejenkova

    Published 2003-12-01
    “…That’s why it’s very important to know if the parameters of the models are stable or not. Main purpose of this paper is to evaluate stability of the GDP components models. …”
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    Article