Information bounds for nonparametric estimators of L-functionals and survival functionals under censored data

Autor: Andreas Knoch, Arnold Janssen
Rok vydání: 2015
Předmět:
Zdroj: Metrika. 79:195-220
ISSN: 1435-926X
0026-1335
Popis: In the present paper we derive lower asymptotic information bounds of Cramer-Rao type for estimators of nonparametric statistical functionals. The results are based on dense differentiability and dense regularity concepts which lead to weak assumptions. As explicit examples L-estimators are treated. In addition a new rapid method for the treatment of survival functionals under randomly right censored data is presented. For instance, for the famous Kaplan-Meier and Nelson-Aalen estimators, our information bound is just the lower bound obtained earlier in the literature.
Databáze: OpenAIRE