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May, 2024
广义去偏Lasso方法的稳定性及在基于重采样的变量选择中的应用
Stability of a Generalized Debiased Lasso with Applications to Resampling-Based Variable Selection
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Jingbo Liu
TL;DR
给定的研究论文提出了适用于Lasso的近似公式,通过该公式可以更新去偏Lasso的系数。论文证明了该近似公式在具有有界条件数协方差矩阵的亚高斯型设计矩阵情况下渐进收敛,并给出了一些具体应用案例。
Abstract
Suppose that we first apply the
lasso
to a design matrix, and then update one of its columns. In general, the signs of the
lasso
coefficients may change, and there is no closed-form expression for updating the
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