It is an important research content of GIS fields in the recent years to store and manage mass GIS basic graphics data and attribute data using object-relation database.
使用对象关系型数据库来一体化存储和管理海量的GIS基础图形数据和属性数据是近年来GIS领域研究的一项重点内容。
The ascertainment of the core attribute set is the important process for discovering decision rules from mass data.
核属性集的确定是从海量数据中发现决策规则的重要步骤。
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