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arXiv 1407.3089stat.ME
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非齐次标记点过程的汇总统计量

Summary statistics for inhomogeneous marked point processes

O. Cronie, M. N. M. van Lieshout

摘要:

我们提出了新的汇总统计强度加权矩平稳标记点过程,特别强调离散标记。新的统计量是基于n点相关函数和减少交叉J-和D-功能时,平稳性举行。我们探讨了各种功能之间的关系,并讨论了它们在特定模型假设下的显式形式。我们得出的比率无偏负抽样估计我们的统计数据,并说明其使用的野火数据集。

英文摘要:

We propose new summary statistics for intensity-reweighted moment stationary marked point processes with particular emphasis on discrete marks. The new statistics are based on the n-point correlation functions and reduce to cross J- and D-functions when stationarity holds. We explore the relationships between the various functions and discuss their explicit forms under specific model assumptions. We derive ratio-unbiased minus sampling estimators for our statistics and illustrate their use on a data set of wildfires.

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