Nonparametric Least Squares Estimation of a Multivariate Convex Regression Function

Details Nonparametric Least Squares Estimation of a Multivariate Convex Regression Function Nonparametric Least Squares Estimation of a Multivariate Convex Regression Function

2010-03-24

arxiv.org/abs/1003.4765v3

Mathematics

Statistics Theory

Scientific paper

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.

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