arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.07085math.STstat.MEstat.TH
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稀疏高维GLARMA模型中的变量选择

Variable selection in sparse high-dimensional GLARMA models

Céline Lévy-Leduc, Sarah Ouadah, Laure Sansonnet

摘要:

在本文中,我们提出了一种新的变量选择方法的稀疏高维GLARMA模型的框架。它包括在这些模型的自回归移动平均(ARMA)系数的估计与正则化方法设计的广义线性模型(GLM)相结合。我们的方法的属性进行了研究,从理论和数值的角度来看。更准确地说,我们建立了在一个特定的情况下的ARMA部分系数估计的一致性。我们解释了如何实现我们的方法,我们表明,它是非常有吸引力的,因为它受益于低计算负荷。我们还使用合成数据评估我们的方法的性能,并将其与其他方法进行比较。我们的数值实验表明,结合ARMA部分系数的估计与正则化方法设计的GLM显着提高变量选择性能。

英文摘要:

In this paper, we propose a novel variable selection approach in the framework of sparse high-dimensional GLARMA models. It consists in combining the estimation of the autoregressive moving average (ARMA) coefficients of these models with regularized methods designed for Generalized Linear Models (GLM). The properties of our approach are investigated both from a theoretical and a numerical point of view. More precisely, we establish in a specific case the consistency of the ARMA part coefficient estimators. We explain how to implement our approach and we show that it is very attractive since it benefits from a low computational load. We also assess the performance of our methodology using synthetic data and compare it with alternative approaches. Our numerical experiments show that combining the estimation of the ARMA part coefficients with regularized methods designed for GLM dramatically improves the variable selection performance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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