Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (13): 25-29.
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GONG Zengtai,TAO Lei
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巩增泰,陶 蕾
Abstract: By considering the incompleteness and uncertainty of information systems,the rough set theory for the incomplete interval-valued fuzzy information systems is discussed,and several properties of the rough approximation operators are showed.In addition,the knowledge discovery for the incomplete interval-valued fuzzy information systems is studied.As an application,the decision rule and the attribute reduction are presented based on an incomplete interval-valued decision table.
Key words: interval-valued fuzzy set, interval-valued fuzzy information system, incomplete information system
摘要: 考虑到模糊信息系统的不完备性和信息值的不确定性,讨论了不完备区间值模糊信息系统的粗糙集理论,给出了粗糙近似算子的性质。研究了不完备区间值模糊信息系统上的知识发现,提出了基于不完备区间值决策表的决策规则和属性约简,最后给出算例。
关键词: 区间值模糊集, 区间值模糊信息系统, 不完备信息系统
GONG Zengtai,TAO Lei. Rough set theory for incomplete interval-valued fuzzy information systems[J]. Computer Engineering and Applications, 2011, 47(13): 25-29.
巩增泰,陶 蕾. 不完备区间值模糊信息系统的粗糙集理论[J]. 计算机工程与应用, 2011, 47(13): 25-29.
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