Showing 201 - 220 results of 390 for search '"statistical model"', query time: 0.07s Refine Results
  1. 201

    Association between exposure to urinary metal and all-cause and cardiovascular mortality in US adults. by Ting Cheng, Dongdong Yu, Geng Li, Xiankun Chen, Li Zhou, Zehuai Wen

    Published 2024-01-01
    “…Therefore, we employed diverse statistical models to evaluate the associations between eight urinary metals and the risks of all-cause and cardiovascular mortality.…”
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    Article
  2. 202
  3. 203

    Interference Coordination Based on POMDP in Multi-Cell OFDMA System by Qiang Wei, Tao Yang, Hui Feng, Bo Hu

    Published 2013-04-01
    “…The inter-cell interference coordination(ICIC)of OFDMA system was studied,and a dynamic ICIC algorithm based on the theory of partially observable Markov decision process(POMDP)was proposed.The statistic model of interference and SINR of channel was combined to allocate channels for cell-edge user in this algorithm.Simulation results show that the proposed scheme can efficiently avoid interference for the cell-edge user.Since this algorithm avoids the coordination between cells,the system overhead is saved.Furthermore,a likelihood relation between SINR and interference was established by using particle filter,so there was no necessary for system to measure the interference.…”
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  4. 204

    The effect of interspike interval statistics on the information gainunder the rate coding hypothesis by Shinsuke Koyama, Lubomir Kostal

    Published 2013-08-01
    “…The question, how much information can be theoreticallygained from variable neuronal firing rate with respect to constantaverage firing rate is investigated.We employ the statistical concept of information based on the Kullback-Leibler divergence,and assume rate-modulated renewal processes as a model of spike trains.We show thatif the firing rate variation is sufficiently small and slow(with respect to the mean interspike interval), the information gaincan be expressed by the Fisher information.Furthermore, under certain assumptions, the smallestpossible information gain is provided by gamma-distributed interspikeintervals.The methodology is illustrated and discussed on severaldifferent statistical models of neuronal activity.…”
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  5. 205

    Uncertainty quantification in modeling HIV viral mechanics by H. T. Banks, Robert Baraldi, Karissa Cross, Kevin Flores, Christina McChesney, Laura Poag, Emma Thorpe

    Published 2015-05-01
    “…We then consider statistical models to describe the data and use these with residual plots in generalized least squares problems to develop accurate descriptions of the proper weights for the data. …”
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    Article
  6. 206

    Effects of tax exemption on economic growth by Marconi Silva Miranda, Marco Aurélio Marques Ferreira, Luiz Antônio Abrantes, Suélem Viana Macedo

    Published 2022-01-01
    “…The empirical strategy employed used statistical models in panel data and quantile regression, taking the period between 2007 and 2017. …”
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    Article
  7. 207

    USING ARTIFICIAL INTELLIGENCE (AI) AND DEEP LEARNING TECHNIQUES IN FINANCIAL RISK MANAGEMENT by Joseph Olorunfemi AKANDE

    Published 2024-12-01
    “…Our analysis highlights the extensive use of sophisticated statistical models in financial risk management. While some progress has been made, more challenges need to be addressed, especially in traditional statistical models. …”
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    Article
  8. 208

    USING ARTIFICIAL INTELLIGENCE (AI) AND DEEP LEARNING TECHNIQUES IN FINANCIAL RISK MANAGEMENT by Joseph Olorunfemi AKANDE

    Published 2023-12-01
    “…Our analysis highlights the extensive use of sophisticated statistical models in financial risk management. While some progress has been made, more challenges need to be addressed, especially in traditional statistical models. …”
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    Article
  9. 209

    Study of interstage channel of hybrid turbomolecular pump by J. A. Shostak, N. K. Nikulin, P. A. Shostak, G. T. Tsakadze, E. V. Svichkar

    Published 2021-03-01
    “…The calculation is based on the use of Monte Carlo method (method of test particle), which consists in the statistical modeling of processes. The article describes an algorithm to construct a mathematical model step by step. …”
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  10. 210

    Los intereses sectoriales de la vivienda social en Cuba by Adriana Rabinovich

    Published 2010-05-01
    “…It sheds light on the statist model that has gradually given priority to quantity while defining quality via criteria for low-cost productivity. …”
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  11. 211

    Långsiktiga prognoser av platsbehovet på fängelser by Hanns von Hofer

    Published 2010-08-01
    “…After a brief description of forecasting and its various methods, three quantitative forecasting methods are discussed: trend projection, extrapolation from causal models, and statistical modelling. Swedish and international prison population data (comprising years 1961 ta 2010) are used as illustrations. …”
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    Article
  12. 212

    Analyzing skewed financial data using skew scale-shap mixtures of multivariate normal distributions by Mostafa Tamandi, Mehdi Amiri

    Published 2024-08-01
    “…This paper introduces an innovative family of statistical models called the multivariate skew scale-shape mixtures of normal distributions. …”
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    Article
  13. 213

    VVC coded distortion prediction model based on frame-level transform coefficient modeling of generalized Gaussian distribution by Yiyin GU, Hongkui WANG, Haibin YIN

    Published 2023-04-01
    “…In versatile video coding (VVC), a variety of advanced coding tools work together to achieve excellent coding performance.Compared with high efficient video coding (HEVC), the transform coefficient distribution (TCD) of VVC has sharper peaks.In order to solve this phenomenon, the probability density function (PDF) of frame-level TCD was modeled, and a frame-level coding distortion prediction model based on statistical modeling was proposed, which modeled frame-level distortion as a function of TCD distribution parameters and quantization parameters.The experimental results show that compared with the Laplace distribution and Cauchy distribution, the generalized Gaussian distribution has the best performance in TCD probability density fitting.The prediction results based on the generalized Gaussian distribution distortion prediction model are closest to the actual coding distortion.…”
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  14. 214

    Adaptive routing strategy in multi layer satellite communication networks by LI Hui, GU Xue-mai

    Published 2006-01-01
    “…The characteristics of multi-coverage of multilayer satellite networks make sure of good validity and reliability of the space-based networks.Walker delta type constellation guarantees permanent inter satellite links between satellites in the same layer and provides nonpermanent inter orbit links,both of which make an autonomic satellite backbone.Un-der statistic model of traffic flow from global perspective,multilayer satellite networks consider path delay and ISL link weight adopt adaptive routing strategy and bear more reliability.Compare with single layer satellite networks,multilayer satellite networks distribute traffic more evenly and have smaller percent of lost packet,network normalized link load and total path weight of special path,which do favor to decreasing percent of blocking probability of network and the special path.…”
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  15. 215

    Forudsigelser om skyld og straffastsættelse by Christian M. Dahl, Rasmus H. Wandall, Simon Wittrock

    Published 2023-03-01
    “…In this paper, we examine how statistical models increase predictability regarding sentencing outcomes and find that our models reduce the uncertainty of case outcomes for the accused, the victims, and their relatives.…”
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  16. 216

    Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics by Jie Yang, Yanna Zheng, Huijing Wang

    Published 2018-01-01
    “…Damage variable expressions are proposed based on the damage and fractal characteristics firstly. Then, the statistical models for acoustic emission considering damage and fractal characteristics are established by deducing the relationship between acoustic emission parameters and load cycles and fractal dimensions. …”
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  17. 217

    Robust Bayesian Regularized Estimation Based on t Regression Model by Zean Li, Weihua Zhao

    Published 2015-01-01
    “…The t distribution is a useful extension of the normal distribution, which can be used for statistical modeling of data sets with heavy tails, and provides robust estimation. …”
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  18. 218

    Dispositif d’accompagnement hybride dans un cours de physique de première année à l’université en Belgique by Elisabeth Gruwé

    Published 2023-11-01
    “…To identify at-risk student profiles in the course, we also constructed statistical models to explore the links between the socio-demographic characteristics and past schooling of first-time enrolled students, their participation in the program, and the grade obtained on the exam. …”
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  19. 219

    The Impact of COVID-19 on DTP3 Vaccination Coverage in Europe (2012–2023) by Ines Aguinaga-Ontoso, Sara Guillen-Aguinaga, Laura Guillen-Aguinaga, Rosa Alas-Brun, Miriam Guillen-Aguinaga, Luc Onambele, Enrique Aguinaga-Ontoso, Esperanza Rayón-Valpuesta, Francisco Guillen-Grima

    Published 2024-12-01
    “…Results: The findings revealed significant regional disparities across Europe. Statistical models indicated reductions in DTP3 coverage in countries such as Ireland, Sweden, and Switzerland, whereas Ukraine and San Marino showed improvements. …”
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  20. 220

    Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals by YU Hongyi, ZHA Renpeng, SHEN Zhixiang, SHEN Caiyao, HU Yunpeng

    Published 2024-12-01
    “…Based on the sufficient statistics model, a lower bound on the performance of single-channel blind demodulation for co-frequency mixed signals was derived using Forney’s method. …”
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    Article