Improve the basic education student status information system, to achieve national networking, build the underlying data of Shanghai basic education, to provide data support for decision-making.
完善基础教育学生学籍信息系统，实现全国联网，构筑上海基础教育底层数据，为决策提供数据支撑。
In the Decision Support System the application of Rough Set could analyze, infer to the incomplete data and pick-up useful character, simplify information processing, and get conclusion in the end.
应用粗集理论可以在决策支持系统中对不完备数据进行分析、推理，提取有用特征，简化信息处理，得出肯定结论。
Experimental results show the algorithm is effective. It can find different reductions of attribute in the information system and provide more information for decision support and data mining.
实验证明该算法是有效的，并能求解出信息系统中多组不同的最小约简，为决策支持和数据挖掘等提供更多信息。
We apply the new mathematical subject, Data Ware House and SSDSS to it, and put forward the Internet Economical Information Analysis and Decision Support System (IEIA-DSS).
在搜索与访问国内主要经济信息网站的基础上，对我国近十几年来经济信息网站的开发与维护的状况、所取得的成就做了分析。
We apply the new mathematical subject, Data Ware House and SSDSS to it, and put forward the Internet Economical Information Analysis and Decision Support System (IEIA-DSS).
在搜索与访问国内主要经济信息网站的基础上，对我国近十几年来经济信息网站的开发与维护的状况、所取得的成就做了分析。
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