Quantile regression in reproducing kernel Hilbert spaces
Quantile regression in reproducing kernel Hilbert spaces
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DOI:
10.1198/016214506000000979
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发表时间:
2007-03-01
影响因子:
3.7
通讯作者:
Zhu, Ji
中科院分区:
文献类型:
--
作者:
Li, Youjuan;Liu, Yufeng;Zhu, Ji
In this article we consider quantile regression in reproducing kernel Hilbert spaces, which we call kernel quantile regression (KQR). We make three contributions: (1) we propose an efficient algorithm that computes the entire solution path of the KQR, with essentially the same computational cost as fitting one KQR model; (2) we derive a simple formula for the effective dimension of the KQR model, which allows convenient selection of the regularization parameter; and (3) we develop an asymptotic theory for the KQR model.