167 citations · 320 across the 3 of their papers we have counts for
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The EFM approach for single-index models
Xia Cui, Wolfgang Karl Härdle, Lixing Zhu
Single-index models are natural extensions of linear models and circumvent the so-called curse of dimensionality. They are becoming increasingly popular in many scientific fields i…
Local Quantile Regression
Vladimir Spokoiny, Weining Wang, Wolfgang Karl Härdle
Quantile regression is a technique to estimate conditional quantile curves. It provides a comprehensive picture of a response contingent on explanatory variables. In a flexible mod…
Common functional principal components
Michal Benko, Wolfgang Härdle, Alois Kneip
Functional principal component analysis (FPCA) based on the Karhunen--Loève decomposition has been successfully applied in many applications, mainly for one sample problems. In thi…