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Formal Concept Analysis and Set-Valued Information Systems

机译:形式概念分析和集值信息系统

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摘要

This paper discusses the relationship between formal contexts and set-valued information systems, and indicates that each formal context can be transformed into a set-valued information system. The extensions of the object concepts in a formal context are equivalent to the dominance classes in the set-valued information system induced by the formal context. It is proved that the granular reduct in a formal context is equivalent to the attribute reduct in the set-valued information system. And then a comparative study of the two kinds of reduct in a formal context is presented. Finally the characteristics of three types of granular attributes in a formal context are analyzed.
机译:本文讨论了形式上下文与集合值信息系统之间的关系,并指出可以将每个形式上下文转换为集合值信息系统。形式上下文中对象概念的扩展等效于形式上下文在集合值信息系统中的优势类。事实证明,形式化上下文中的粒度约简与集值信息系统中的属性约简等效。然后给出了两种还原形式的比较研究。最后,分析了形式化上下文中三种类型的粒度属性的特征。

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