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A GENERIC TEST FOR THE SIMILARITY OF SPATIAL DATA

机译:空间数据相似性的通用测试

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摘要

Two spatial data sets are considered to be similar if they originate from the same stochastic process in terms of their spatial structure. Many tests have been developed over recent years to test the similarity of certain types of spatial data, such as spatial point patterns, geostatistical data and images. This research proposes a generic spatial similarity test able to handle various types of spatial data, for example images (modelled spatially), point patterns, marked point patterns, geostatistical data and lattice patterns. A simulation study is done in order to test the method for each spatial data set. After the simulation study, it was concluded that the proposed spatial similarity test is not sensitive to the user-defined resolution of the pixel image representation. From the simulation study, the proposed spatial similarity test performs well on lattice data, some of the unmarked point patterns and the marked point patterns with discrete marks. We illustrate this test on property prices in the City of Cape Town and the City of Johannesburg, South Africa.
机译:如果它们在其空间结构方面源自相同的随机过程,则认为两个空间数据集被认为是相似的。近年来已经开发了许多测试,以测试某些类型的空间数据的相似性,例如空间点模式,地统计数据和图像。该研究提出了一种能够处理各种类型的空间数据的通用空间相似性测试,例如图像(适用于空间),点模式,标记点模式,地统计数据和格子图案。进行模拟研究以测试每个空间数据集的方法。在仿真研究之后,得出结论,所提出的空间相似性测试对像素图像表示的用户定义分辨率不敏感。从仿真研究来看,所提出的空间相似性测试在晶格数据上表现良好,其中一些非标记点模式和具有离散标记的标记点模式。我们展示了在南非开普敦市和约翰内斯堡市的房地产价格测试。

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