Robust estimation in generalized linear models based on the normal quantiles of the probability integral transformation

📅 2026-08-29
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本文提出了一种基于概率积分变换和正态分位数函数的广义线性模型鲁棒估计新方法,通过最小化参数大小的鲁棒度量来解决异常值影响问题。
📝 Abstract
A new approach to robust estimation in generalized linear models is introduced. The idea of the method is to first transform the responses applying the composition of the normal quantile function and the probability integral transformation. Then, using that the transformed responses should follow a standard normal distribution, find the values of the parameters that minimize a robust measure of their size. In practice an approximation of this transformation is used. The proposed estimators are studied theoretically for distributions that depend on a single parameter and through simulations and examples for the particular cases of Poisson and logistic regression.
Problem

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robust estimation
generalized linear models
normal quantiles
probability integral transformation
Innovation

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robust estimation
generalized linear models
normal quantiles
probability integral transformation
standard normal distribution
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Marina Valdora
Marina Valdora
Instituto de Cálculo, University of Buenos Aires and CONICET
V
Víctor Yohai
Instituto de Cálculo and Department of Mathematics, FCEN, University of Buenos Aires