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arXiv 1111.6230math.STstat.TH
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函数响应下非参数泛函回归估计的收敛性

Convergence of Nonparametric Functional Regression Estimates with Functional Responses

Heng Lian

摘要:

当预测变量和响应变量都是函数时,我们考虑非参数函数回归。更具体地说,我们设$(X_1,Y_1),...,(X_n,Y_n)$是$\mathcal{F}\times\mathcal{H}$中的随机元,其中$\mathcal{F}$是半度量空间,而$\mathcal{H}$是可分的希尔伯特空间.基于最近引入的函数型数据弱相依的概念,我们以统一的方式证明了Nadaraya-Watson估计和最近邻估计的几乎必然收敛速度.几个因素,包括响应的函数性质,使用Orlicz范数的函数变量的假设和所需的一般性弱相关数据,使理论研究更具挑战性和有趣的。

英文摘要:

We consider nonparametric functional regression when both predictors and responses are functions. More specifically, we let $(X_1,Y_1),...,(X_n,Y_n)$ be random elements in $\mathcal{F}\times\mathcal{H}$ where $\mathcal{F}$ is a semi-metric space and $\mathcal{H}$ is a separable Hilbert space. Based on a recently introduced notion of weak dependence for functional data, we showed the almost sure convergence rates of both the Nadaraya-Watson estimator and the nearest neighbor estimator, in a unified manner. Several factors, including functional nature of the responses, the assumptions on the functional variables using the Orlicz norm and the desired generality on weakly dependent data, make the theoretical investigations more challenging and interesting.

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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