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Method for calculating the encounter probability in network space

机译:计算网络空间中遇到概率的方法

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摘要

Probabilistic time geography (PTG) can be used to measure the probability of random encounters between two moving objects. Available PTG methods are based on homogeneous space, while the network space is typically heterogeneous, which constrains individuals to the network. Therefore, the PTG of the network must consider the geographic network. Based on this, we put forward a method for calculating the encounter probability of objects that are moving in a network by considering network constraints on movement. These constraints not only restrict the space-time accessibility of the moving objects, but also affect the probability of them visiting locations or encountering other objects in space and time. Therefore, in network space, our method improves measures of the likelihood of encounters between moving objects, thereby enabling more accurate predictions of encounter events and their probabilities. Finally, the performance of the method is experimentally evaluated. In the experiment, campus road network data and simulated trip data are used to calculate the encounter probabilities of two moving objects and to determine when and where two moving objects meet with the highest probability.
机译:概率时间地理(PTG)可用于测量两个移动物体之间随机遇到的概率。可用的PTG方法基于均匀的空间,而网络空间通常是异构的,这将个体限制到网络。因此,网络的PTG必须考虑地理网络。基于此,我们提出了一种通过考虑在移动上的网络限制来计算在网络中移动的对象的概率的方法。这些约束不仅限制了移动对象的时空可访问性,而且影响了访问位置的概率或遇到空间和时间中的其他对象。因此,在网络空间中,我们的方法改善了移动物体之间遇到的可能性的措施,从而能够更准确地预测遇到事件及其概率。最后,通过实验评估该方法的性能。在实验中,校园路网数据和模拟跳闸数据用于计算两个移动对象的遇到概率,并确定两个移动对象与最高概率相遇的何时何地。

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  • 来源
    《Transactions in GIS: TG》 |2020年第2期|共21页
  • 作者单位

    Wuhan Univ Technol Sch Resources &

    Environm Engn Wuhan Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources &

    Environm Engn Wuhan Hubei Peoples R China;

    Wuhan Univ Sch Resource &

    Environm Sci 129 Luoyu Rd Wuhan Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources &

    Environm Engn Wuhan Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources &

    Environm Engn Wuhan Hubei Peoples R China;

    Wuhan Univ Technol Sch Resources &

    Environm Engn Wuhan Hubei Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 测绘数据库与信息系统;
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