摘要
空间同位模式分析是数据挖掘中一种常见的方法,可有效挖掘城市设施在空间位置上的关联特征,进而发现城市设施的分布规律。本文基于POI数据同位模式挖掘用来获取城市服务业空间关联结构:首先,通过邻近实例获取、同位候选模式存储与筛选,得到城市服务业二阶同位模式;然后,据此构造产业空间关联图,得到产业间的关联结构;最后,分别构造了产业空间关联图密度和产业空间关联显著指数,用来衡量城市服务业空间关联的紧密程度和整体关联的显著程度。本文选取成都、兰州、郑州、沈阳、上海与深圳为试验区,实验结果表明:不同城市服务业的空间关联结构存在共性与特殊性,整体上,餐饮、购物等与居民日常生活相关的服务业易与其他服务业产生空间强相关,这几类服务业内部空间集聚明显;成都与沈阳的服务业整体表现空间关联度高且紧密,兰州其次,上海与深圳的服务业则整体表现空间关联较弱,郑州的服务业空间关联较紧密但强度较低。
Spatial co-location mode analysis has been commonly used in data mining,which can be used to characterize the correlation between different urban service facilities and further quantify the distribution pattern of urban service industry.In this paper,a co-location pattern mining method with POI data is proposed to obtain the spatial correlation of urban service industry.Firstly,through the acquisition of neighboring instances,and selection and storage of homology candidate patterns,the second-order homology pattern of urban service industry can be obtained;Secondly,the industrial spatial correlation map is constructed to obtain the correlation structure between industries.Finally,the industrial spatial correlation graph density and spatial correlation significance are constructed to measure the tightness of urban service industry relationship.We select Chengdu,Lanzhou,Zhengzhou,Shenyang,Shanghai,and Shenzhen as experimental areas.The results show that there are both similarities and differences in the spatial correlation of urban service industry in different cities.Generally,service industries such as catering and shopping which are related to daily life have a strong spatial correlation with other service industries.These types of service industry are often spatially clustered.The administrative department has a weak spatial correlation with other service industries and often occupies a separate functional area.Based on the results of the co-location pattern mining for each city,we find that the co-location pattern between teahouses and residential areas is strong in Chengdu,which indicates a unique"tea culture".In Shanghai,foreign restaurants and leisure places show a co-location pattern,which indicates the internationalization characteristic of Shanghai.Both Chengdu and Shenyang show the strongest spatial correlation of service industry which is highly mixed.The spatial correlation of service industry in Lanzhou is moderate.While Shanghai and Shenzhen show the weakest spatial correlation of service industry.These two cities have a high-level economic development and show separated industrial zones.Zhengzhou also has a weak spatial correlation because of its"multi-center,group-like"structure.This paper uses the spatial co-location model to characterize the spatial correlation of the urban service industry,which can be used as references for future urban planning.
作者
胡添
刘涛
杜萍
余贝贝
张萌生
HU Tian;LIU Tao;DU Ping;YU Beibei;ZHANG Mengsheng(Faculty of Geomatics,Lanzhou Jiaotong University,Lanzhou 730070,China;National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring,Lanzhou 730070,China;Gansu Provincial Engineering Laboratory for National Geographic State Monitoring,Lanzhou 730070,China)
出处
《地球信息科学学报》
CSCD
北大核心
2021年第6期969-978,共10页
Journal of Geo-information Science
基金
国家重点研发计划课题项目(2016YFC0803106)
国家自然科学基金项目(41761088)
兰州交通大学优秀平台支持(201806)。
关键词
空间同位模式
数据挖掘
城市服务业
VORONOI图
产业空间关联图密度
产业空间关联显著指数
spatial co-location mode
data mining
urban services
voronoi algorithm
industrial spatial correlation graph density
industry spatial association significant index
作者简介
胡添(1995-),男,吉林敦化人,硕士生,主要从事城市数据挖掘研究。E-mail:1316898338@qq.com;通讯作者:刘涛(1981-),男,湖北随州人,博士,教授,主要从事空间关系理论,GIS、RS应用与开发。E-mail:ltaochina@foxmail.com。
