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arXiv 1704.03005stat.ME
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污染流形上的函数回归

Functional Regression on Manifold with Contamination

Zhenhua Lin, Fang Yao

摘要:

我们提出了一种新的方法,功能非参数回归的预测,驻留在有限维流形上,但只能在无限维空间中观察。污染的预测由于离散/嘈杂的测量也占。通过使用功能的局部线性流形平滑,所提出的估计享有多项式的收敛速度,自适应的内在流形尺寸和污染水平。这与函数非参数回归文献中的对数收敛速度形成鲜明对比。我们还观察到一个相变现象的相互作用的歧管尺寸和污染水平。通过模拟和真实数据的例子,我们证明了所提出的方法具有良好的数值性能相对于常用的方法。

英文摘要:

We propose a new method for functional nonparametric regression with a predictor that resides on a finite-dimensional manifold but is only observable in an infinite-dimensional space. Contamination of the predictor due to discrete/noisy measurements is also accounted for. By using functional local linear manifold smoothing, the proposed estimator enjoys a polynomial rate of convergence that adapts to the intrinsic manifold dimension and the contamination level. This is in contrast to the logarithmic convergence rate in the literature of functional nonparametric regression. We also observe a phase transition phenomenon regarding the interplay of the manifold dimension and the contamination level. We demonstrate that the proposed method has favorable numerical performance relative to commonly used methods via simulated and real data examples.

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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