| 基于粗糙集的学生成绩决策分析 |
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| 引用本文： | 庄怡雯,黄润才. 基于粗糙集的学生成绩决策分析[J]. 计算机应用与软件, 2008, 25(10) |
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| 作者姓名： | 庄怡雯 黄润才 |
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| 作者单位： | 东华大学计算机科学与技术学院,上海,201620;上海工程技术大学电子电气工程学院,上海,201620;东华大学信息科学与技术学院,上海,201620 |
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| 摘 要： | 基于粗糙集的知识理论可以从现有原始数据出发给出知识的简化.利用粗糙集理论以及其算法,在MATLAB环境下对学生自主学习成绩决策表进行了求解,分析了该决策表的上近似集、下近似集、不可分辨关系、约简、核集、属性依赖度的概念,从而在原始数据的基础上得出了条件属性与决策属性间的关系.
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| 关 键 词： | 粗糙集 决策表 约简 依赖度 |
THE DECISION ANALYSIS OF STUDENTS' SCORE DATABASE BASED ON ROUGH SET |
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| Zhuang Yiwen,Huang Runcai. THE DECISION ANALYSIS OF STUDENTS' SCORE DATABASE BASED ON ROUGH SET[J]. Computer Applications and Software, 2008, 25(10) |
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| Authors: | Zhuang Yiwen Huang Runcai |
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| Affiliation: | Zhuang Yiwen1 Huang Runcai2,31(College of Computer Science , Technology,Donghua University,Shanghai 201620,China) 2(College of Electrical , Electronic Engineering,Shanghai University of Engineering Science,China) 3(College of Information Science , Technology,China) |
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| Abstract: | The knowledge theory based on rough set can help to simplify the knowledge proceeded from original data.In the paper it introduces the rough set theory and its principle algorithms.MATLAB Rough Set Toolbox is programmed to analyze the decision table of self-learning system from students' score database.The concepts such as the upper approximation,lower approximation,indiscernibility relation,reduction,core set,and attribute-importance are analyzed based on the score database table.Thus,the relations between... |
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| Keywords: | Rough set Decision table Reduction Attribute-importance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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