Optimal prediction for linear regression with infinitely many parameters

Alexander Goldenshluger and Alexandre Tsybakov

Journal of Multivariate Analysis, 2003, vol. 84, issue 1, 40-60

Abstract: The problem of optimal prediction in the stochastic linear regression model with infinitely many parameters is considered. We suggest a prediction method that outperforms asymptotically the ordinary least squares predictor. Moreover, if the random errors are Gaussian, the method is asymptotically minimax over ellipsoids in l2. The method is based on a regularized least squares estimator with weights of the Pinsker filter. We also consider the case of dynamic linear regression, which is important in the context of transfer function modeling.

Keywords: Linear; regression; with; infinitely; many; parameters; Optimal; prediction; Exact; asymptotics; of; minimax; risk; Pinsker; filter (search for similar items in EconPapers)
Date: 2003
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Citations: View citations in EconPapers (2)

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