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arXiv 2101.04783math.STstat.MEstat.TH
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变带宽核回归估计

Variable bandwidth kernel regression estimation

Janet Nakarmi, Hailin Sang, Lin Ge

摘要:

在本文中,我们提出了一个可变带宽核回归估计$i.i.d.$观测$\mathbb{R}^2$,以改善经典的Nadaraya-Watson估计。在密度函数的五阶导数和回归函数的六阶导数有界且连续的条件下,将偏差提高到$O(h_n^4)$阶.我们还建立了理想和真实变量核回归估计的中心极限定理。仿真研究证实了我们的结果,并证明了变带宽核方法比经典核方法的优势。

英文摘要:

In this paper we propose a variable bandwidth kernel regression estimator for $i.i.d.$ observations in $\mathbb{R}^2$ to improve the classical Nadaraya-Watson estimator. The bias is improved to the order of $O(h_n^4)$ under the condition that the fifth order derivative of the density function and the sixth order derivative of the regression function are bounded and continuous. We also establish the central limit theorems for the proposed ideal and true variable kernel regression estimators. The simulation study confirms our results and demonstrates the advantage of the variable bandwidth kernel method over the classical kernel method.

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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