关键词: 属性合成区间值信息系统, 协调集, 形式背景, 概念, 概念格

Abstract: Interval-valued information system is one of the common information systems. In this paper, the attribute synthetic interval-valued information system is defined based on the same finite universal. The basic theory of formal context is introduced into the attribute synthetic interval valued information system and generate the formal context based on the sub-contexts. Then, the relationship is studied between the consistent sets on the formal context and the sub-contexts. The construction method of isomorphism concept lattice on the original formal context is provided; Finally, the conclusions are verified through the instance.

Key words: attribute synthetic interval-valued information system, consistent set, formal context, concept, concept lattice