In partially linear model selection, we develop a profiled forward regression (PFR) algorithm for ultrahigh dimensional variable screening. The PFR algorithm effectively combines the ideas of nonparametric profiling and forward regression. This allows us to obtain a uniform bound for the absolute difference between the profiled predictors and their estimators. Based on this finding, we are able to show that the PFR algorithm uncovers all relevant variables within a few fairly short steps. Numerical studies are presented to illustrate the performance of the proposed method.
机构:
Chongqing Univ, Coll Math & Stat, Chongqing, Peoples R China
Southwest Univ, Sch Math & Stat, Chongqing, Peoples R ChinaChongqing Univ, Coll Math & Stat, Chongqing, Peoples R China
Lv, Jing
Yang, Hu
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Chongqing Univ, Coll Math & Stat, Chongqing, Peoples R China
Southwest Univ, Sch Math & Stat, Chongqing, Peoples R ChinaChongqing Univ, Coll Math & Stat, Chongqing, Peoples R China
Yang, Hu
Guo, Chaohui
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Chongqing Normal Univ, Coll Math Sci, Chongqing, Peoples R ChinaChongqing Univ, Coll Math & Stat, Chongqing, Peoples R China