| 不完备信息系统中的确定优势粗糙决策规则提取 |
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| 引用本文： | 骆公志,黄卫东.不完备信息系统中的确定优势粗糙决策规则提取[J].南京邮电大学学报(自然科学版),2011,31(5):114-120,123. |
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| 作者姓名： | 骆公志 黄卫东 |
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| 作者单位： | 1. 南京邮电大学经济与管理学院,江苏南京,210046
2. 南京邮电大学社会科学处,江苏南京,210046 |
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| 基金项目： | 国家自然科学基金(70871061); 教育部人文社会科学基金(11YJC630148); 江苏省高校哲学社会科学基金(09SJD630032);江苏省高校“青蓝工程”优秀青年骨干教师; 南京邮电大学引进人才科研启动基金(NYS211024)资助项目 |
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| 摘 要： | 以不完备信息决策系统为研究对象,提出了基于确定优势关系的粗糙集模型.在确定优势关系粗糙集的基础上,提出了相对下、上近似约简的概念,给出了求得相对下、上近似约简的具体方法,并在此基础上提取不完备信息系统中的确定优势粗糙决策规则.应用实例表明了所提出的新方法的有效性.
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| 关 键 词： | 不完备信息决策系统 粗糙集 确定优势关系 相对约简 |
Extracting Decision Rules from Incomplete Information Decision System by Rough Set Model Based on Definitive Dominance Relation |
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| LUO Gong-zhi,HUANG Wei-dong.Extracting Decision Rules from Incomplete Information Decision System by Rough Set Model Based on Definitive Dominance Relation[J].Journal of Nanjing University of Posts and Telecommunications,2011,31(5):114-120,123. |
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| Authors: | LUO Gong-zhi HUANG Wei-dong |
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| Institution: | LUO Gong-zhi1,HUANG Wei-dong2( 1.College of Economic & Management,Nanjing University of Posts and Telecommunications,Nanjing 210046,China 2.Department of Social Science,China) |
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| Abstract: | In this paper,the concept of rough set model based on definitive dominance relation is proposed in the incomplete information decision system.Moreover,based on the definitive dominance-based rough set model,two types of knowledge reductions,the relative lower and upper approximate reductions are proposed.Then,the practical approaches to compute the relative lower and upper approximate reductions are presented.On this basis,one can extract decision rules from incomplete information decision system.Finally,an... |
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| Keywords: | incomplete information decision system rough set definitive dominance relation relative reduction |
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