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arXiv 1806.09014stat.ME
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假设精简回归

Assumption Lean Regression

Richard A. Berk, Andreas Buja, Lawrence Brown, Edward George, Arun Kumar Kuchibhotla, Weijie J. Su, Linda Zhao

AI总结:

针对传统回归模型普遍误设的问题,本文提出将模型视为真实响应曲面近似的假设精简回归框架,实现渐近无偏估计与有效推断,并推广至回归泛函。

摘要:

众所周知,传统回归分析中使用的模型通常存在误设。标准的回应几乎只是耸耸肩。数据分析者援引 Box 的格言,即所有模型都是错的,然后仍照常进行,仿佛结果依然有用。在本文中,我们提供了一种替代方案。回归模型被明确视为真实响应曲面的近似,可具有若干理想的统计性质,包括渐近无偏的估计。由此可得到有效的统计推断。我们将该表述推广至包含回归泛函,从而大幅拓宽了潜在应用范围。文中提供了一个实证应用,以阐明本文的关键概念。

英文摘要:

It is well known that models used in conventional regression analysis are commonly misspecified. A standard response is little more than a shrug. Data analysts invoke Box's maxim that all models are wrong and then proceed as if the results are useful nevertheless. In this paper, we provide an alternative. Regression models are treated explicitly as approximations of a true response surface that can have a number of desirable statistical properties, including estimates that are asymptotically unbiased. Valid statistical inference follows. We generalize the formulation to include regression functionals, which broadens substantially the range of potential applications. An empirical application is provided to illustrate the paper's key concepts.

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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