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arXiv 2602.08413stat.ME
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基于INLA的圆形模型贝叶斯回归框架

A Bayesian regression framework for circular models with INLA

King Abdullah University of Science and Technology(阿卜杜拉国王科技大学);University of Pretoria(比勒陀利亚大学)

Xiang Ye, Janet Van Niekerk, Haavard Rue

AI总结:

本文提出了一种基于INLA的贝叶斯回归框架,用于处理圆形变量的回归模型,能够处理多种响应类型和混合协变量,并通过实例验证其有效性。

摘要:

针对圆形变量的回归模型发展较少,因为将线性预测器从协变量的线性组合和各种随机效应中构建出来,会破坏变量的圆形性质。本文介绍了一种新的方法来解决这个问题,当数据集中时,能够得到定义良好的圆形响应回归模型。我们的方法自然地扩展到联合回归模型中,可以处理多个圆形和非圆形响应,并允许处理线性协变量、圆形协变量和各种随机效应的混合。我们的公式自然地与集成嵌套拉普拉斯近似(INLA)对齐,后者提供了快速且准确的贝叶斯推断。我们通过多个模拟和实际例子来说明我们的方法。

英文摘要:

Regression models for circular variables are less developed, since the concept of building a linear predictor from linear combinations of covariates and various random effects, breaks the circular nature of the variable. In this paper, we introduce a new approach to rectify this issue, leading to well-defined regression models for circular responses when the data are concentrated. Our approach extends naturally to joint regression models where we can have several circular and non-circular responses, and allow us to handle a mix of linear covariates, circular covariates and various random effects. Our formulation aligns naturally with the integrated nested Laplace approximation (INLA), which provides fast and accurate Bayesian inference. We illustrate our approach through several simulated and real examples.

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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