众源地理空间数据的城市热点区域探测Urbanhot spots detection based on crowdsourcing geospatial data
滕巧爽,孙尚宇,秘金钟
摘要(Abstract)：
针对众源地理空间数据具有丰富的空间、时间和语义信息,将其应用于城市热点区域的探测可为城市发展规划、区域监督预警及大众服务等提供有力支撑的问题,该文提出了一种基于众源地理空间数据的城市热点区域探测方法。针对新浪微博签到数据的特性,以新浪微博2015年全年的签到数据为例,采用一种改进的空间采样方法获取格网单元的用户活跃度与类型信息,在此基础上,依次利用度量空间相关性和方向特征的空间测度对签到数据的空间模式进行了分析,最终探测到城市热点区域及其大致发展方向。结果表明,该方法具有周期短、成本低、可靠性高等特性,为城市热点区域的探测提供了一种新手段。
关键词(KeyWords)： 众源地理空间数据;签到数据;空间数据挖掘;探测性空间数据分析;热点探测
基金项目(Foundation): 国家重点研发计划项目(2016YFB0502105,2016YFB0501801);; 中国测绘科学研究院基本科研业务费项目(7771604)
作者(Author): 滕巧爽,孙尚宇,秘金钟
DOI: 10.16251/j.cnki.1009-2307.2018.05.013
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