Spatial sensitivity analysis for urban hotspots using cell phone traces
Spatial sensitivity analysis for urban hotspots using cell phone traces
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DOI：
10.1177/2399808320985843
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
Jiahui Wu;E. Frías-Martínez;V. Frías-Martínez
中科院分区：
文献类型：
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作者：
Jiahui Wu;E. Frías-Martínez;V. Frías-Martínez
城市热点可以用来模拟城市环境的结构，研究或预测城市生活的各个方面。越来越多的兴趣在城市热点的分析已经引发了普遍的技术，产生大量的时空数据，包括手机痕迹（或通话详细记录）的出现。虽然热点分析使用手机的痕迹是广泛的，有没有研究人员之间的共识，遵循的过程中计算它们的四个重要的方法选择：城市边界，空间单位，插值方法，热点变量。使用来自墨西哥的大规模CDR数据集，我们提供了一个可解释的系统的空间敏感性分析，这些方法的选择可能对热点变量的稳定性在静态和动态设置的影响。
Urban hotspots can be used to model the structure of urban environments and to study or predict various aspects of urban life. An increasing interest in the analysis of urban hotspots has been triggered by the emergence of pervasive technologies that produce massive amounts of spatio-temporal data including cell phone traces (or Call Detail Records). Although hotspot analyses using cell phone traces are extensive, there is no consensus among researchers about the process followed to compute them in terms of four important methodological choices: city boundaries, spatial units, interpolation methods, and hotspot variables. Using a large-scale CDR dataset from Mexico, we provide an interpretable systematic spatial sensitivity analysis of the impact that these methodological choices might have on the stability of the hotspot variables in both static and dynamic settings.