Scale Effects on Spatially Embedded Contact Networks.
Scale Effects on Spatially Embedded Contact Networks.
复制标题
DOI：
10.1016/j.compenvurbsys.2016.06.002
复制
发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
Bian L
中科院分区：
文献类型：
--
作者：
Gao P;Bian L
空间现象受到尺度效应的影响，但很少有研究解决这种影响的空间嵌入式接触网络。在这些网络中有两种类型的结构，网络结构和空间结构。对网络结构进行了积极研究。这些网络的空间结构只是在最近几年才受到关注。当然，这两种结构是否相互反应，我们知之甚少。本研究考察了空间范围对网络结构和空间嵌入式接触网络空间结构的规模效应。两个问题进行了探讨，这两种类型的结构如何变化，以响应规模的变化，以及规模效应的范围。两套面积单元，规则网格与24个不同的空间范围和人口普查单元的3个空间范围的水平，被用来划分一个观察和两个参考随机网络到多个尺度。六个指标被用来表示这两个结构。结果显示不同的尺度效应。在网络结构方面，所观察到的网络的性质对细尺度的尺度变化很敏感。相比之下，网络的集群空间结构是尺度无关的。网络结构的行为受空间结构的影响。这些信息有助于确定易受健康风险影响的家庭和社区，并有助于在空间目标区域部署干预战略。
Spatial phenomena are subject to scale effects, but there are rarely studies addressing such effects on spatially embedded contact networks. There are two types of structure in these networks, network structure and spatial structure. The network structure has been actively studied. The spatial structure of these networks has received attention only in recent years. Certainly little is known whether the two structures respond to each other. This study examines the scale effects, in terms of spatial extent, on the network structure and the spatial structure of spatially embedded contact networks. Two issues are explored, how the two types of structures change in response to scale changes, and the range of the scale effects. Two sets of areal units, regular grids with 24 different levels of spatial extent and census units of three levels of spatial extent, are used to divide one observed and two reference random networks into multiple scales. Six metrics are used to represent the two structures. Results show different scale effects. In terms of the network structure, the properties of the observed network are sensitive to scale changes at fine scales. In comparison, the clustered spatial structure of the network is scale independent. The behaviors of the network structure are affected by the spatial structure. This information helps identify vulnerable households and communities to health risks and helps deploy intervention strategies to spatially targeted areas.