摘要
本文基于一个模糊关系数据库系统的实验性原型FRDB1中定义的模糊关系.首先定义了模糊等价性,然后描述并验证了模糊依赖的理论,最后讨论了模糊关系的规范化设计.
Based on fuzzy relations defined in FRDB1 system-an experimental prototype of fuzzy retational database system, the paper defines fuzzy equality, describes the theory of fuzzy functional dependency and dis-cusses normalization design of fuzzy relations.
出处
《计算机工程》
CAS
CSCD
北大核心
1993年第3期7-11,共5页
Computer Engineering
关键词
模糊关系
模糊函数依赖
规范化
fuzzy relation / fuzzy functional dependency / fuzzy equality / cylindrical extension / member-ship grade / cardinality
