摘要
This paper focuses on the issues of categorical database gen-eralization and emphasizes the roles ofsupporting data model,integrated datamodel,spatial analysis and semanticanalysis in database generalization.The framework contents of categoricaldatabase generalization transformationare defined.This paper presents an in-tegrated spatial supporting data struc-ture,a semantic supporting model andsimilarity model for the categorical da-tabase generalization.The concept oftransformation unit is proposed in generalization.
基金
supported by the National Natural Science Foundation(No.40271088)
the Research Fund of International Instit of Geo-intormation Science and Earn Obsorvation.
