Decorrelated forward regression for high dimensional data analysis Article Swipe

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YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2408.12272

Forward regression is a crucial methodology for automatically identifying important predictors from a large pool of potential covariates. In contexts with moderate predictor correlation, forward selection techniques can achieve screening consistency. However, this property gradually becomes invalid in the presence of substantially correlated variables, especially in high-dimensional datasets where strong correlations exist among predictors. This dilemma is encountered by other model selection methods in literature as well. To address these challenges, we introduce a novel decorrelated forward (DF) selection framework for generalized mean regression models, including prevalent models, such as linear, logistic, Poisson, and quasi likelihood. The DF selection framework stands out because of its ability to convert generalized mean regression models into linear ones, thus providing a clear interpretation of the forward selection process. It also offers a closed-form expression for forward iteration, to improve practical applicability and efficiency. Theoretically, we establish the screening consistency of DF selection and determine the upper bound of the selected submodel's size. To reduce computational burden, we develop a thresholding DF algorithm that provides a stopping rule for the forward-searching process. Simulations and two real data applications show the outstanding performance of our method compared with some existing model selection methods.

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Regression Regression analysis Computer science Statistics Mathematics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2408.12272
PDF: https://arxiv.org/pdf/2408.12272
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4405622412

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DOI: https://doi.org/10.48550/arxiv.2408.12272

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Title: Decorrelated forward regression for high dimensional data analysis

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-08-22

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Authors: Xuejun Jiang, Yue Ma, Haofeng Wang

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Landing page: https://arxiv.org/abs/2408.12272

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PDF URL: https://arxiv.org/pdf/2408.12272

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Concepts: Regression, Regression analysis, Computer science, Statistics, Mathematics

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