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arXiv 1003.4765math.STstat.TH
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多元凸回归函数的非参数最小二乘估计

Nonparametric Least Squares Estimation of a Multivariate Convex Regression Function

Emilio Seijo, Bodhisattva Sen

摘要:

本文讨论了预测变量为多维时凸回归函数的最小二乘估计的相合性。我们的特点和讨论这样的估计通过某些二次和线性规划的解决方案的计算。温和的充分条件的一致性,这个估计和它的次微分在固定和随机设计回归设置。我们还考虑了一个回归函数,这是已知的凸和分量非增,并讨论其最小二乘估计的特征,计算和一致性。

英文摘要:

This paper deals with the consistency of the least squares estimator of a convex regression function when the predictor is multidimensional. We characterize and discuss the computation of such an estimator via the solution of certain quadratic and linear programs. Mild sufficient conditions for the consistency of this estimator and its subdifferentials in fixed and stochastic design regression settings are provided. We also consider a regression function which is known to be convex and componentwise nonincreasing and discuss the characterization, computation and consistency of its least squares estimator.

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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