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RODEO for Sparse Nonparametric Regression and Quantile Regression with Censored Data

Authors: BRUTTI, Pierpaolo;

RODEO for Sparse Nonparametric Regression and Quantile Regression with Censored Data

Abstract

RODEO is a recently developed general strategy for nonparametric estimation based on the regularization of the estimator derivatives with respect to the smoothing parameters. In the original nonparametric regression framework, RODEO results in a simple yet effective new algorithm for simultaneous bandwidth and variable selection with interesting theoretical properties. In this work we focus on a censored regression model in which only the response variable is (right) censored whereas the covariates, although fully observed, are supposed to live in a high dimensional space. In order to recover a sparse representation of both the regression function and the quantile regression function, we adapt RODEO to the present setting starting from the weighted local linear estimator proposed by Cai (2003). We study its theoretical properties and evaluate its performance on both real and simulated data sets.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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