计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (35): 22-24.
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鲍忠奎1,2,杨善林1
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BAO Zhongkui1,2,YANG Shanlin1
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摘要: 通过分析研究现有集值信息系统下定义的二元关系,基于集合包含度在集值信息系统中引入相似度概念,定义了一种基于相似度的α-相容关系,提出基于α-相容关系的粗糙集扩展模型,并分析比较了该模型与现有粗糙集扩展模型之间的关系。最后,给出实例加以验证。
关键词: 集值信息系统, 粗糙集, 相似度, α-相容关系
Abstract: Kinds of relations in the classical set-valued information systems are analyzed.Based on set inclusion degree,the concept of tolerance degree is introduced in set-valued information systems,and then a tolerance relation based on tolerance degree is defined.An extension model of rough set based on α-tolerance relation is proposed,then the relations between this extension model and classical models are compared.Finally,an illustrative example is analyzed.
Key words: set-valued information systems, rough set, tolerance degree, α-tolerance relation
鲍忠奎1,2,杨善林1. 集值信息系统的粗糙集扩展模型[J]. 计算机工程与应用, 2011, 47(35): 22-24.
BAO Zhongkui1,2,YANG Shanlin1. Extended rough set model in set-valued information systems[J]. Computer Engineering and Applications, 2011, 47(35): 22-24.
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