arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10987math.STstat.TH
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概率密度范数的极小极大估计:II。速率最优估计方法

Minimax estimation of norms of a probability density: II. Rate-optimal estimation procedures

Alexander Goldenshluger, Oleg Lepski

摘要:

在本文中,我们开发率-最优估计程序的问题估计$L_p$ -范数,$p\in (0, \infty)$的概率密度从独立的观察。假设密度定义在$R^d$,$d\geq 1$上,并且属于各向异性Nikolskii空间中的球。在整数$p\geq 2$情形下,我们采用极大极小化方法,构造了速率最优估计.我们证明,根据参数的Nikolskii的类和规范指标$p$,风险渐近范围从不一致的$\sqrt{n}$ -估计。本文的结果补充了在配套文件\cite{gl20}中导出的极大极小下界。

英文摘要:

In this paper we develop rate--optimal estimation procedures in the problem of estimating the $L_p$--norm, $p\in (0, \infty)$ of a probability density from independent observations. The density is assumed to be defined on $R^d$, $d\geq 1$ and to belong to a ball in the anisotropic Nikolskii space. We adopt the minimax approach and construct rate--optimal estimators in the case of integer $p\geq 2$. We demonstrate that, depending on parameters of Nikolskii's class and the norm index $p$, the risk asymptotics ranges from inconsistency to $\sqrt{n}$--estimation. The results in this paper complement the minimax lower bounds derived in the companion paper \cite{gl20}.

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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