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arXiv 1409.0752math.STstat.TH
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连续逆回归

Continuous inverse regression

François Portier

摘要:

我们提供了新的理论成果,在该领域的逆回归方法的降维。我们的方法是基于一些经验的过程,靠近一定的降维子空间,称为中央子空间的研究。对这些过程的研究主要包括弱收敛结果和一些一般Bootstrap过程的相合性。虽然这些属性被用来获得切片逆回归的新结果,但它们主要允许定义一个自然的降维方法家族。首先,估计方法的根$n$率和自助被证明是有效的。其次,我们描述了一族Cramér-vonMises检验统计量,它可用于检验中心子空间的结构性质或某些预测集的显著性。我们表明,这些测试的分位数可以通过自举计算。大多数与逆回归相关的现有方法涉及在实践中难以选择的响应切片。虽然我们的方法保证了全面的估计,但不再需要切片。

英文摘要:

We provide new theoretical results in the field of inverse regression methods for dimension reduction. Our approach is based on the study of some empirical processes that lie close to a certain dimension reduction subspace, called the central subspace. The study of these processes essentially includes weak convergence results and the consistency of some general bootstrap procedures. While such properties are used to obtain new results about sliced inverse regression, they mainly allow to define a natural family of methods for dimension reduction. First the estimation methods are shown to have root $n$ rates and the bootstrap is proved to be valid. Second, we describe a family of Cramér-von Mises test statistics that can be used in testing structural properties of the central subspace or the significancy of some sets of predictors. We show that the quantiles of those tests could be computed by bootstrap. Most of the existing methods related to inverse regression involve a slicing of the response that is difficult to select in practice. While our approach guarantee a comprehensive estimation, the slicing is no longer needed.

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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