基于政务数据仓库的数据集成及关键技术

Data Integrating and Key Technology for the Data Warehouse of Government Affairs

政府机关网络中的数据集成是进行数据挖掘的准备阶段，这一阶段需要以行政决策为依据来抽取和集成数据并导入数据仓库。文章根据政府机关网络中已有数据的特点和数据挖掘过程中对数据的要求，详细讨论了构建数据集成的对象模型的方法、运用元数据库来实现政务数据仓库的数据集成的途径、使用对象模型来实施异构数据集成的关键技术。

Carrying out data integration is a seedtime for data mining in the network of governmental organization, in which it is necessary to extract and integrate data based on administrative policies and put them into data warehouse. According to the characteristics of data availability and the requirements for data mining in the network of governmental organization, this paper discusses in detail the method of framing object model for data integration, and the approch to implementing data integration with meta database in the data warehouse of governmental affairs, as well as the key technology of realizing integration processing for heterogenous data types with object model.