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首页> 外文期刊>Science Journal of Applied Mathematics and Statistics >On Maximum Likelihood Estimates for the Shape Parameter of the Generalized Pareto Distribution
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On Maximum Likelihood Estimates for the Shape Parameter of the Generalized Pareto Distribution

机译:广义帕累托分布形状参数的最大似然估计

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The general Pareto distribution (GPD) has been widely used a lot in the extreme value for example to model exceedance over a threshold. Feature of The GPD that when applied to real data sets depends substantially and clearly on the parameter estimation process. Mostly the estimation is preferred by maximum likelihood because have a consistent estimator with lowest bias and variance. The objective of the present study is to develop efficient estimation methods for the maximum likelihood estimator for the shape parameter or extreme value index. Which based on the numerical methods for maximizing the log-likelihood by introduce an algorithm for computing maximum likelihood estimate of The GPD parameters. Finally, a numerical examples are given to illustrate the obtained results, they are carried out to investigate the behavior of the method.
机译:通用帕累托分布(GPD)已被广泛使用于极值,例如用于对超过阈值的超出进行建模。 GPD的功能在应用于实际数据集时,在很大程度上取决于参数估计过程。通常,由于具有一致的估计量且偏差和方差最低,因此最好采用最大似然估计。本研究的目的是为形状参数或极值指数的最大似然估计器开发有效的估计方法。通过引入一种算法来计算GPD参数的最大似然估计,从而基于最大化对数似然性的数值方法。最后,给出了一个数值例子来说明所获得的结果,并进行了研究以研究该方法的性能。

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