Fuzzy Functional Dependencies in Multiargument Relationships

被引：0
|
作者：
Myszkorowski, Krzysztof [1 ]
机构：
[1] Tech Univ Lodz, Inst Informat Technol, PL-93005 Lodz, Poland
来源：
ARTIFICIAL INTELLIGENCE AND SOFT COMPUTING, PT I | 2010年 / 6113卷
关键词：
Fuzzy relational database model; fuzzy functional dependencies; possibility distribution; implication of fuzzy data dependencies; n-ary relationships; COMPLETE AXIOMATIZATION; UNCERTAIN-INFORMATION; DATABASE MODEL; NORMAL FORMS; VAGUE;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A multiargument relationship may be formally presented using the relational notation: R(X(1), X(2), ... , X(n)), where R is the name of the relationship, and attributes Xi denote keys of entity sets which participate in it. The dependencies between all n attributes describe the integrity constraints and must not be infringed. They constitute a restriction for relationships of fewer attributes. In the paper an analysis of fuzzy functional dependencies between attributes of R is presented. Attribute vales are given by means of possibility distributions.
引用
收藏
页码：152 / 159
页数：8
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