Statistical Inference for Spatiotemporal Partially Observed Markov Processes via the R Package spatPomp

Statistical Inference for Spatiotemporal Partially Observed Markov Processes via the R Package spatPomp
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通过 R 包 spatPomp 对时空部分观测马尔可夫过程进行统计推断

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发表时间:
2021
期刊:
影响因子:
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通讯作者:
E. Ionides
E. Ionides
中科院分区:
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作者:
Kidus Asfaw;Joonha Park;Allister Ho;A. King;E. Ionides

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研究一类具有潜在动力变量和空间结构的非线性随机过程的推理问题。空间结构采用动态耦合的有限空间单元集合的形式。我们假设潜在过程具有马尔可夫结构,并且进行了单位特定的噪声测量。这种形式的模型称为时空部分观测马尔可夫过程(SpatPOMP)。R包spatPomp为实现spatPomp模型、分析数据和开发新的推理方法提供了一个环境。我们描述了一些适合spatPomp模型的缩放属性方法的spatPomp实现。我们在一个简单的高斯系统和城市内部和城市之间麻疹传播的非平凡流行病学模型上演示了该软件包。我们将展示如何在SpatPOMP中构造用户指定的SpatPOMP模型。本文档依据知识共享署名许可协议提供。
We consider inference for a class of nonlinear stochastic processes with latent dynamic variables and spatial structure. The spatial structure takes the form of a finite collection of spatial units that are dynamically coupled. We assume that the latent processes have a Markovian structure and that unit-specific noisy measurements are made. A model of this form is called a spatiotemporal partially observed Markov process (SpatPOMP). The R package spatPomp provides an environment for implementing SpatPOMP models, analyzing data, and developing new inference approaches. We describe the spatPomp implementations of some methods with scaling properties suited to SpatPOMP models. We demonstrate the package on a simple Gaussian system and on a nontrivial epidemiological model for measles transmission within and between cities. We show how to construct user-specified SpatPOMP models within spatPomp . This document is provided under the Creative Commons Attribution License.
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发表时间: 2018-03
影响因子: 3.4
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