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arXiv 1406.4052math.STstat.TH
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单指标模型中剖面M-估计的有限样本分析

Finite sample analysis of profile M-estimation in the Single Index model

Andreas Andresen

摘要:

我们应用Andresen A.和Spokoiny V.关于剖面M-估计和交替极大化方法分析了线性指标函数的单指标模型中的筛剖面拟极大似然估计。用紧支集的\(C^3\) -Daubechies小波逼近连接函数。在有限样本条件下,我们得到了类似Wilks现象和Fisher定理的结果.此外,我们表明,交替最大化过程收敛到全局最大化,并评估在这种情况下的投影寻踪程序的性能。该方法是基于显示的条件Andresen A.和Spokoiny V.关于剖面M-估计和交替最大化过程,在指标函数、回归量和加性噪声的一组较弱的正则性和矩条件下,可以得到满足.这允许构造非渐近置信集,并导出估计量的渐近界作为推论。

英文摘要:

We apply the results of Andresen A. and Spokoiny V. on profile M-estimators and the alternating maximization procedure to analyse a sieve profile quasi maximum likelihood estimator in the single index model with linear index function. The link function is approximated with \(C^3\)-Daubechies-wavelets with compact support. We derive results like Wilks phenomenon and Fisher Theorem in a finite sample setup. Further we show that an alternation maximization procedure converges to the global maximizer and assess the performance of a projection pursuit procedure in that context. The approach is based on showing that the conditions of Andresen A. and Spokoiny V. on profile M-estimators and the alternating maximization procedure can be satisfied under a set of mild regularity and moment conditions on the index function, the regressors and the additive noise. This allows to construct nonasymptotic confidence sets and to derive asymptotic bounds for the estimator as corollaries.

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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