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arXiv 1409.5928math.STstat.TH
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由L-矩条件定义的模型的估计

Estimation for models defined by conditions on their L-moments

Alexis Decurninge, Michel Broniatowski

摘要:

本文扩展了经验最小发散方法的模型,满足线性约束的基础变量的概率测度(矩约束)的情况下,这种约束属于其分位数测量(这里称为半参数分位数模型)。当这些约束条件描述的形状条件处理的L-矩的情况下被认为是这些模型的描述以及由此产生的非经典的最小发散程序。这些模型描述了主要用于其尾部行为的经典模型的邻域,例如Pareto或韦布尔分布的邻域,它们可以共享相同的第一L-矩。一个平行的绘制与弹性理论和最优输运问题中的类似问题。模拟的例子比较Pareto和Weibull模型的最大似然估计的最小卡方经验发散方法的半参数分位数模型,和其他的属性所得到的估计说明。

英文摘要:

This paper extends the empirical minimum divergence approach for models which satisfy linear constraints with respect to the probability measure of the underlying variable (moment constraints) to the case where such constraints pertain to its quantile measure (called here semi parametric quantile models). The case when these constraints describe shape conditions as handled by the L-moments is considered and both the description of these models as well as the resulting non classical minimum divergence procedures are presented. These models describe neighborhoods of classical models used mainly for their tail behavior, for example neighborhoods of Pareto or Weibull distributions, with which they may share the same first L-moments. A parallel is drawn with similar problems held in elasticity theory and in optimal transport problems. The properties of the resulting estimators are illustrated by simulated examples comparing Maximum Likelihood estimators on Pareto and Weibull models to the minimum Chi-square empirical divergence approach on semi parametric quantile models, and others.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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