Oliver Hines and Karla Diaz-Ordazʼs Contribution to the Discussion of ‘Assumption-Lean Inference For Generalised Linear Model Parameters’ by Vansteelandt and Dukes
Hines 与 Diaz-Ordaz 对《广义线性模型参数的弱假设推断》的讨论AI 解读 ↓
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Hines 与 Diaz-Ordaz 对《广义线性模型参数的弱假设推断》的讨论AI 解读 ↓
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We congratulate the authors on their work, which contributes to a growing movement in Statistics, moving away from (semi)parametric-based regression model assumptions, in favour of understanding working models as non-parametric projections of the true distribution. Here, we highlight this aspect of the work, and draw connections with other recent developments. The parametric modeller assumes that for some particular β, ω(.), the remainder term is exactly zero. Inference is usually carried out under this assumption, resulting in the dishonest inference described in (Vansteelandt & Dukes, 2020). The projectionist, however, instead aims to report β such that the remainder term is, in some sense, small. The projectionist argues that when the remainder is small, β captures the main effect of A on Y. Indeed when the parametric modeller is correct, both the reported main effects coincide. We believe that model projection estimands represent an exciting frontier in statistical research.
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