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

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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.