The integration of urban spatial information : approaches from GIS and SOM

这项研究促进了城市空间信息的整合，以更好地进行城市管理和政策分析。(1)调查者重点研究了日本政府进行的“关键统计”，总结了其属性，并从构建城市信息系统的角度考察了其使用的可能性。(2)利用整合的数据库，调查者比较了传统的聚类分析方法和自组织地图技术，证明了SOM方法可以更好地处理空间分析。(3)调查者介绍了日本在城市规划和电子政务的背景下，在不同历史阶段对城市级信息系统和地理空间数据库所做的机构努力。对现状进行了考察，并指出了存在的问题。

This research promoted integration of urban spatial information for better management and policy analysis in cities.(1) The investigator focused on the "key statistics" conducted by the Japanese government, summarized their properties, and examined the possibility of usage from the view of constructing urban information systems.(2) Using the integrated databases, the investigator compared the conventional cluster analysis methods with Self Organizing Map techniques and demonstrated that the SOM method can deal with spatial analysis better.(3) The investigator introduced Japan's institutional efforts on city-level information systems and geospatial databases in various historical phases in the context of urban planning and e-government. The current situation was examined and the problems were pointed out as well.