Trace pursuit variable selection for multi-population data

Lei Huo, Xuerong Meggie Wen and Zhou Yu

Journal of Nonparametric Statistics, 2018, vol. 30, issue 2, 430-447

Abstract: Variable selection is a very important tool when dealing with high dimensional data. However, most popular variable selection methods are model based, which might provide misleading results when the model assumption is not satisfied. Sufficient dimension reduction provides a general framework for model-free variable selection methods. In this paper, we propose a model-free variable selection method via sufficient dimension reduction, which incorporates the grouping information into the selection procedure for multi-population data. Theoretical properties of our selection methods are also discussed. Simulation studies suggest that our method greatly outperforms those ignoring the grouping information.

Date: 2018
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DOI: 10.1080/10485252.2018.1430364

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