| 基于容差关系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,杨习贝,严熙. 基于容差关系的扩展粗集模型中的知识依赖[J]. 计算机工程与应用, 2006, 42(33): 58-61 |
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| 作者姓名： | 王丽娟 吴陈 杨习贝 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;江苏科技大学,电子信息学院,江苏,镇江,212003;江苏科技大学,电子信息学院,江苏,镇江,212003;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： | 论文在基于容差关系的扩展粗集模型中,考虑了条件属性子集与决策属性子集间知识依赖和条件属性子集间的知识依赖两种情况,分别给出了这两种情况下知识依赖和部分知识依赖以及依赖度等概念的定义,证明了与这些概念的定义相关的一些重要定理结论,并给出了一些例子加以验证。
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| 关 键 词： | 粗集 知识依赖 不完备信息系统 容差关系 |
| 文章编号： | 1002-8331（2006）33-0058-04 |
| 收稿时间： | 2006-02-01 |
| 修稿时间： | 2006-02-01 |
Knowledge Dependency in Expanded Rough Sets Model Based on Tolerance Relation |
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| WANG Li-juan,WU Chen,YANG Xi-bei,YAN Xi. Knowledge Dependency in Expanded Rough Sets Model Based on Tolerance Relation[J]. Computer Engineering and Applications, 2006, 42(33): 58-61 |
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| Authors: | WANG Li-juan WU Chen YANG Xi-bei YAN Xi |
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| Affiliation: | School of Electronics and Information,Jiangsu University of Science and Technology, Zhenjiang,Jiangsu 212003, China |
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| Abstract: | This paper considers two cases in expanded rough sets model based on tolerance relation,the one is the knowledge dependency between the conditional attribute subset and the decision one,and the other is the one between two conditional attribute subsets.It gives definitions of knowledge dependency,partial knowledge dependency and dependency degree,proves some important theorems about these new definitions,and then shows some examples to validate them. |
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| Keywords: | rough set functional dependency incomplete information system tolerance relation |
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