摘要
文章在给出基于数据库的粗集理论的形式化描述的基础上,首先引入关联度概念,修改了一个典型的缩减算法;其次,定义了一个能较为全面反映知识形成过程中一些得要统计特征的规则表示方法;最后设计知识发现系统的并举例验证了系统的正确性和实用性。
On the analysis of the Rou gh Set Theory's formalized description based on database.At first,this paper i ntroduces the relationship conception and improves a typical reduction algorithm .Then definition of a formalized expression for knowledge,which can comprehens ively reflect some important statistical characteristics in the reducing proce ss,is given.Finally,we design a knowledge discovery system and give examples to testify its validity and exactness.
出处
《微电子学与计算机》
CSCD
北大核心
2003年第3期8-12,共5页
Microelectronics & Computer
基金
陕西省自然科学基金资助项目(2002F26)
