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Non-parametric Regression with Dependent Censored Data
Authors:ANOUAR EL GHOUCH  INGRID VAN KEILEGOM
Institution:Institute of Statistics, Universitécatholique de Louvain
Abstract:Abstract.  Let ( X i , Y i ) ( i = 1 ,…, n ) be n replications of a random vector ( X , Y  ), where Y is supposed to be subject to random right censoring. The data ( X i , Y i ) are assumed to come from a stationary α -mixing process. We consider the problem of estimating the function m ( x ) = E ( φ ( Y ) |  X = x ), for some known transformation φ . This problem is approached in the following way: first, we introduce a transformed variable     , that is not subject to censoring and satisfies the relation     , and then we estimate m ( x ) by applying local linear regression techniques. As a by-product, we obtain a general result on the uniform rate of convergence of kernel type estimators of functionals of an unknown distribution function, under strong mixing assumptions.
Keywords:censoring  local linear smoothing  strong mixing  survival analysis
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