Sparse dimension reduction for survival data
Sparse dimension reduction for survival data
复制标题
生存数据的稀疏降维
DOI:
10.1007/s00180-012-0383-4
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
Dixin Zhang
中科院分区:
文献类型:
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作者:
Changrong Yan;Dixin Zhang
In this paper, we study the estimation and variable selection of the sufficient dimension reduction space for survival data via a new combination ofpenalty and the refined outer product of gradient method (rOPG; Xia et al. in J R Stat Soc Ser B 64:363–410, 2002), called SH-OPG hereafter. SH-OPG can exhaustively estimate the central subspace and select the informative covariates simultaneously; Meanwhile, the estimated directions remain orthogonal automatically after dropping noninformative regressors. The efficiency of SH-OPG is verified through extensive simulation studies and real data analysis.
DOI:
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发表时间:
2006
期刊:
影响因子:
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作者:
Atsuyuki;Kogure;Masahiko;Sagae
通讯作者:
Sagae