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arXiv 1301.1817stat.AP
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使用集成嵌套拉普拉斯近似拟合复杂空间点过程模型的工具箱(INLA)

A toolbox for fitting complex spatial point process models using integrated nested Laplace approximation (INLA)

Janine B. Illian, Sigrunn H. Sørbye, Håvard Rue

摘要:

本文开发的方法,提供了一个工具箱,经常拟合复杂的模型,以现实的空间点模式数据。我们考虑的模型是基于对数高斯Cox过程,并考虑构建的协变量,包括在这些局部相互作用。这使我们能够使用集成嵌套拉普拉斯近似,并大大加快推理任务。此外,模型比较和模型评估方法也有助于建模过程。该方法的性能进行了评估,在模拟研究。为了证明该方法的多功能性,模型拟合到两个相当不同的例子,一个大型的热带雨林数据集的协变量和多个标记的点模式。

英文摘要:

This paper develops methodology that provides a toolbox for routinely fitting complex models to realistic spatial point pattern data. We consider models that are based on log-Gaussian Cox processes and include local interaction in these by considering constructed covariates. This enables us to use integrated nested Laplace approximation and to considerably speed up the inferential task. In addition, methods for model comparison and model assessment facilitate the modelling process. The performance of the approach is assessed in a simulation study. To demonstrate the versatility of the approach, models are fitted to two rather different examples, a large rainforest data set with covariates and a point pattern with multiple marks.

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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