论文标题
强度网络:基于强度的分析R在R的复杂网络结构上发生的空间点模式
intensitynet: Intensity-based Analysis of Spatial Point Patterns Occurring on Complex Networks Structures in R
论文作者
论文摘要
结构化空间点过程数据的统计分析,其中事件位置是由潜在的空间嵌入关系系统确定的,已成为生动的研究领域。尽管越来越多的有关点过程特征到线性网络域的扩展的文献越来越多,但大多数软件实现仍局限于有导或无方向的网络结构,并且用于分析由无向零件组成的相当复杂的现实世界系统的分析。本文通过图理论观点对网络进行形式化,讨论了一种通过通用网络强度功能分析基于网络的事件数据的补充方法,并对R中实现的Intensementnet软件包进行了一般介绍,涵盖了涵盖计算详细信息和应用程序。通过将边缘视为基本实体,实施的方法可以计算强度和其他相关值与包含非方向,定向或两个边缘组合的不同图形结构相关的其他相关值。该软件包包括用于网络建模,数据操作,强度估计,本地和全局自相关统计的计算,可视化以及对标记点过程方案的扩展的特征。所有功能都伴随着使用芝加哥数据作为玩具示例可重复的代码示例,以说明包装的应用。
The statistical analysis of structured spatial point process data where the event locations are determined by an underlying spatially embedded relational system has become a vivid field of research. Despite a growing literature on different extensions of point process characteristics to linear network domains, most software implementations remain restricted to either directed or undirected network structures and are of limited use for the analysis of rather complex real-world systems consisting of both undirected and directed parts. Formalizing the network through a graph theoretic perspective, this paper discusses a complementary approach for the analysis of network-based event data through generic network intensity functions and gives a general introduction to the intensitynet package implemented in R covering both computational details and applications. By treating the edges as fundamental entities, the implemented approach allows the computation of intensities and other related values related to different graph structures containing undirected, directed, or a combination of both edges as special cases. The package includes characteristics for network modeling, data manipulation, intensity estimation, computation of local and global autocorrelation statistics, visualization, and extensions to marked point process scenarios. All functionalities are accompanied by reproducible code examples using the chicago data as toy example to illustrate the application of the package.