This paper presents relative stability properties of various nonparametric density estimators (histogram, kernel estimates) and of regression estimators (partitioning, kernel, and nearest neighbor estimates). In density estimation, let En denote the L1 error of an estimate calculated from n data, whereas in regression estimation, the L2 error of the estimate is used. Sufficient conditions for En/E{En}→1 in probability are provided. If this limit holds, the asymptotic behavior of the random error En can be characterized by its expectation E{En},, and one may apply, for example, the established rate-of-convergence results for E{En}.
Published in:
Information Theory, IEEE Transactions on
(Volume:48
,
Issue:
8
)
Date of Publication: Aug 2002