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arXiv 1207.2805math.STmath.PRstat.TH
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分布的极大似然特征

Maximum likelihood characterization of distributions

Mitia Duerinckx, Christophe Ley, Yvik Swan

摘要:

CF提出的著名特征定理高斯指出,当且仅当位置族是高斯族时,位置族中参数的最大似然估计(MLE)是所有样本量的所有样本的样本均值。这个结果在不同的方向上有许多扩展,其中大多数集中在位置和规模家庭。在本文中,我们提出了一个统一的治疗这一文献提供一般的MLE特征定理的单参数组家庭(特别注意的位置和尺度参数)。在这样做时,我们提供的工具,用于确定是否一个给定的这样的家庭是MLE特征,并在这种情况下,我们定义的基本概念,最小必要的样本量,在给定的表征举行。许多关于这一主题的基石参考检索和讨论,根据我们的研究结果,并提供了几个新的特征定理。特别感兴趣的是,我们的工作的一部分,即引进所谓的等价类MLE特征,是一个现代化的版本丹尼尔伯努利的观点极大似然估计。

英文摘要:

A famous characterization theorem due to C.F. Gauss states that the maximum likelihood estimator (MLE) of the parameter in a location family is the sample mean for all samples of all sample sizes if and only if the family is Gaussian. There exist many extensions of this result in diverse directions, most of them focussing on location and scale families. In this paper, we propose a unified treatment of this literature by providing general MLE characterization theorems for one-parameter group families (with particular attention on location and scale parameters). In doing so, we provide tools for determining whether or not a given such family is MLE-characterizable, and, in case it is, we define the fundamental concept of minimal necessary sample size at which a given characterization holds. Many of the cornerstone references on this topic are retrieved and discussed in the light of our findings, and several new characterization theorems are provided. Of particular interest is that one part of our work, namely the introduction of so-called equivalence classes for MLE characterizations, is a modernized version of Daniel Bernoulli's viewpoint on maximum likelihood estimation.

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