Analysis of the appearance and disappearance of point objects over time
Analysis of the appearance and disappearance of point objects over time
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DOI：
10.1080/13658816.2018.1538517
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发表时间：
2019-02
影响因子：
5.7
通讯作者：
Y. Sadahiro
中科院分区：
文献类型：
--
作者：
Y. Sadahiro
摘要不动点的出现和消失是地理信息科学中的重要时空事件。它们代表着森林中树木的生与死、城市中建筑物的建造与毁坏以及商店和餐馆的开业与关闭等现象。本文提出了一种新的分析点的出现和消失的方法。该方法可以帮助分析人员捕捉事件模式的整体情况和区域变化，并发现重要的局部模式。定义了四种措施，表明事件的空间和时间模式的强度。这些措施被可视化为网格地图。一个统计测试是用来评估的措施，以提取区域的显着模式的显着性。所提出的方法应用于商店和餐馆在涩谷，东京的分析。沿着与实证研究结果的方法的技术合理性进行了讨论。
ABSTRACT The appearance and disappearance of immovable points are important spatiotemporal events in geographical information science. They represent phenomena such as the birth and death of trees in forests, construction and destruction of buildings in cities and openings and closures of shops and restaurants. This paper proposes a new method for analyzing the appearance and disappearance of points. The method helps analysts capture the overall picture and regional variation of event pattern and detecting significant local patterns. Four measures are defined that indicate the intensity of spatial and temporal patterns of events. The measures are visualized as grid maps. A statistical test is used to evaluate the significance of the measures to extract the regions of significant patterns. The proposed method is applied in an analysis of shops and restaurants in Shibuya, Tokyo. Technical soundness of the method is discussed along with empirical findings.