Measuring geographic segregation: a graph-based approach
Measuring geographic segregation: a graph-based approach
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DOI：
10.1007/s10109-013-0190-7
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发表时间：
2014-04-01
影响因子：
2.9
通讯作者：
Sadahiro, Yukio
中科院分区：
文献类型：
--
作者：
Hong, Seong-Yun;Sadahiro, Yukio
居住隔离是一种多维现象，涵盖人口之间地理隔离的几个概念上不同的方面。尽管针对不同的隔离定义制定了各种指数，但对此类单位指数的依赖可能会过度简化复杂的多维现象。在这方面，本文提出了一种基于图形的替代方法，它提供了比简单指数更详细的信息：浓度分布图以图形方式传达了有关人口群体在研究区域分布如何均匀的信息，空间邻近度分布图描述了不同阈值水平上的聚类程度。这些图表也可以总结为单个数字以进行比较，但通过检查附加信息可以使解释更加准确。为了展示这些方法的用途，我们使用 2006 年人口普查数据对奥克兰三个主要族群（即毛利人、太平洋人种和亚洲人）的居住模式进行了研究。
Residential segregation is a multidimensional phenomenon that encompasses several conceptually distinct aspects of geographical separation between populations. While various indices have been developed as a response to different definitions of segregation, the reliance on such single-figure indices could oversimplify the complex, multidimensional phenomena. In this regard, this paper suggests an alternative graph-based approach that provides more detailed information than simple indices: The concentration profile graphically conveys information about how evenly a population group is distributed over the study region, and the spatial proximity profile depicts the degree of clustering across different threshold levels. These graphs can also be summarized into single numbers for comparative purposes, but the interpretation can be more accurate by inspecting the additional information. To demonstrate the use of these methods, the residential patterns of three major ethnic groups in Auckland, namely MAori, Pacific peoples, and Asians, are examined using the 2006 census data.