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Scale effects on spatially embedded contact networks
Computers, Environment and Urban Systems ( IF 7.1 ) Pub Date : 2016-09-01 , DOI: 10.1016/j.compenvurbsys.2016.06.002
Peng Gao 1 , Ling Bian 1
Affiliation  

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.

中文翻译:

空间嵌入接触网络的尺度效应

空间现象受尺度效应的影响,但很少有研究解决这种对空间嵌入接触网络的影响。这些网络有两种结构,网络结构和空间结构。网络结构已被积极研究。这些网络的空间结构近年来才受到关注。当然,人们对这两种结构是否相互反应知之甚少。本研究考察了空间范围对网络结构和空间嵌入接触网络的空间结构的尺度效应。探讨了两个问题,两种类型的结构如何随着尺度变化而变化,以及尺度效应的范围。两套面积单位,使用具有 24 个不同空间范围级别的规则网格和三个空间范围级别的普查单位,将一个观测网络和两个参考随机网络划分为多个尺度。使用六个度量来表示这两种结构。结果显示出不同的规模效应。在网络结构方面,观察到的网络的属性对精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。该信息有助于识别易受健康风险影响的家庭和社区,并有助于将干预策略部署到空间目标区域。使用六个度量来表示这两种结构。结果显示出不同的规模效应。在网络结构方面,观察到的网络的属性对精细尺度的尺度变化很敏感。相比之下,网络的聚类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。该信息有助于识别易受健康风险影响的家庭和社区,并有助于将干预策略部署到空间目标区域。使用六个度量来表示这两种结构。结果显示出不同的规模效应。在网络结构方面,观察到的网络的属性对精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。该信息有助于识别易受健康风险影响的家庭和社区,并有助于将干预策略部署到空间目标区域。网络结构的行为受空间结构的影响。该信息有助于识别易受健康风险影响的家庭和社区,并有助于将干预策略部署到空间目标区域。网络结构的行为受空间结构的影响。该信息有助于识别易受健康风险影响的家庭和社区,并有助于将干预策略部署到空间目标区域。
更新日期:2016-09-01
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