Approximate nonparametric quantile regression in reproducing kernel Hilbert spaces via random projection
Approximate nonparametric quantile regression in reproducing kernel Hilbert spaces via random projection
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通过随机投影再现核希尔伯特空间中的近似非参数分位数回归
DOI:
10.1016/j.ins.2020.08.039
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发表时间:
2021-02
影响因子:
8.1
通讯作者:
Heng Lian
中科院分区:
文献类型:
--
作者:
Fode Zhang;Rui Li;Heng Lian
Nonparametric quantile regression is a commonly used nonlinear quantile model. One general and popular approach is based on the use of kernels within a reproducing kernel Hilbert space (RKHS) framework, with the smoothing splines estimation as a special case. However, when the sample size n is large, the computational burden is heavy. Motivated by the recent advances in random projection for kernel nonparametric (mean) ridge regression (KRR), we consider an m-dimensional random projection approach for kernel quantile regression (KQR) with m≪ n. We establish a theoretical result showing that the sketched KQR still achieves the minimax convergence rate when m is at least as large as the effective statistical dimension of the problem. Some Monte Carlo studies are carried out for illustration purposes.
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DOI:
10.1214/16-aos1472
发表时间:
2015-01
期刊:
ArXiv
影响因子:
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作者:
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DOI:
10.1016/j.laa.2009.03.026
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2008-12
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DOI:
10.1007/978-3-642-22147-7
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2011-08
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作者:
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DOI:
10.1080/10618600.2016.1256816
发表时间:
2017-01-01
影响因子:
2.4
作者:
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7.8
作者:
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