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》 资源 》论文》The lasso, persistence, and cross-validation

The lasso, persistence, and cross-validation

2020-03-02 | |  65 |   40 |   0

Abstract

During the last fifteen years, the lasso procedure has been the target of a substantial amount of theoretical and applied research. Correspondingly, many results are known about its behavior for a fixed or optimally chosen smoothing parameter (given up to unknown constants). Much less, however, is known about the lasso’s behavior when the smoothing parameter is chosen in a data dependent way. To this end, we give the first result about the risk consistency of lasso when the smoothing parameter is chosen via cross-validation. We consider the high-dimensional setting wherein the number of predictors 图片.png grows with the number of observations.

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