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Multi-step adaptive elastic net for variable selection and classification in high-dimensional sparse logistic regression models

delete2026-01-19
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PRE
AI
Y
YiPing Yang
H
Huang Ying-hui
J
Junhua Zhang
G
Gaorong Li *
DOI:10.1007/s00180-025-01714-2delete
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摘要

摘要

En 中文
在高维数据分析中,尤其是在处理高度相关的协变量时,变量选择与分类的联合挑战在机器学习中依然普遍存在。为解决此问题,我们针对逻辑回归模型提出了多步自适应弹性网(MSA-Enet)方法,该方法整合了多步估计框架与自适应惩罚结构。MSA-Enet通过应用小幅度重复惩罚的策略增强了相关变量的选择,并提高了分类预测的准确性。理论上,所提出的方法被证明能够以高概率选择真实模型,并在某些正则性条件下实现 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$L_2$$\end{document} -范数误差界。最后,通过模拟研究和两个基因表达数据集的分析表明,MSA-Enet能够在不牺牲分类预测准确性的前提下降低模型复杂度。
Keyword:
Adaptive elastic net
High-dimensional data
Lasso
Penalized logistic regression
Variable selection

期刊

C
Computational Statistics
IF:
1.4
论文数:
101
被引数:
2.2K

机构

B
beijing information science & technology university
学者数:
194
论文数: 71
被引数: 0
N
nanjing university of finance & economics
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190
论文数: 111
被引数: 0
C
chongqing technology & business university
学者数:
152
论文数: 73
被引数: 0
B
beijing normal university
学者数:
5.6K
论文数: 2.2K
被引数: 0
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