| 基于限制容差关系和集对分析方法的扩展粗集模型中的知识依赖 |
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| 引用本文： | 王丽娟,吴陈,严熙.基于限制容差关系和集对分析方法的扩展粗集模型中的知识依赖[J].江苏科技大学学报(社会科学版),2007,21(2):49-53. |
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| 作者姓名： | 王丽娟 吴陈 严熙 |
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| 作者单位： | 江苏科技大学电子信息学院 江苏镇江212003 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 用基于限制容差关系的扩充粗集模型对不完备信息系统进行分析,找出各个对象间的依赖关系,将对象进行约简。用基于集对分析方法的改进集对粗集模型对已进行了对象约简的不完备信息系统进行分析,找出各个属性之间的依赖关系,进一步进行属性约简。结合一个实际例子加以分析,说明这种限制容差关系模型和集对分析方法相结合的方法对处理不完备信息系统合理有效。
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| 关 键 词： | 知识依赖 不完备信息系统 限制容差关系 集对分析 |
| 文章编号： | 1673-4807(2007)02-0049-05 |
| 修稿时间： | 2006年6月2日 |
Knowledge Dependency in Expanded Rough Sets Model Based on Limited Tolerance Relation and Set Pair Analysis |
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| WANG Lijuan,WU Chen,YAN Xi.Knowledge Dependency in Expanded Rough Sets Model Based on Limited Tolerance Relation and Set Pair Analysis[J].Journal of Jiangsu University of Science and Technology:Natural Science Edition,2007,21(2):49-53. |
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| Authors: | WANG Lijuan WU Chen YAN Xi |
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| Abstract: | The IIS(incomplete information systems) with limited tolerance relation is analyzed.The object dependency is found out and the objects are reduced.Then the IIS after the object reduction is investigated through the set pair analysis.The attribute dependency is obtained and the attributes are further reduced.Through an example,it is verified that the new method combined with the limited tolerance relation and the set pair analysis is reasonable and effective. |
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| Keywords: | knowledge dependency incomplete information system limited tolerance relation set pair analysis |
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