Strong uniform consistency rates for estimators of conditional functionals.(English)Zbl 0672.62050

Let (X,Y) be a bivariate random vector with joint distribution function (df) F(x,y) and conditional df F(y$$| x)$$. Let $$\{\beta_ t$$, $$t\in I\}$$ be a family of real-valued measurable functions on R for which it is desired to estimate $r_ t(X)=E\{\beta_ t(Y)| X=x\}=\int \beta_ t(y)dF(y| x)$ such that a good almost sure convergence rate holds uniformly for $$\in I,$$ where I is a possibly infinite (or degenerate) interval in R. The present treatment unifies a number of specific problems previously studied separately in the literature. The authors treat some of these applications in detail, including regression curve estimation, density estimation, estimation of conditional df’s, L- smoothing and M-smoothing.
Reviewer: M.A.Mirzahmedov

MSC:

 62G05 Nonparametric estimation 60F15 Strong limit theorems
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