期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
概率信息系统的属性约简
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1. 石家庄学院 元氏分院, 河北 石家庄 051100;
2. 河北化工医药职业技术学院 基础部, 河北 石家庄 050026;
3. 北京航空航天大学 材料科学与工程学院, 北京 100191 -
DOI：
The Attribute Reduction of Probabilistic Information Systems
摘要/Abstract
摘要：
用概率信息系统表示对象与属性值之间的概率关系.在概率信息系统的属性集上定义一种等价关系,该等价关系将概率信息系统分为协调和不协调的2大类,基于这种等价关系重点研究了概率信息系统以及协调概率信息系统的约简,同时讨论了可辨识属性矩阵与约简的相互关系,并通过实例加以验证.
Abstract：
A probabilistic information system is used to express the probabilistic relationship between objects and attributes. Probabilistic information systems are divided into two main classes by an equivalence relation which is defined on the attribute set of probabilistic information systems. Based on this equivalence relation,the reduction and discernibility matrix of consistent information systems are obtained, and their properties and the relations between them are also discussed. Finally,examples are used to verified this theory.