Variable Precision Rough Set Model Based on Set Pair Situation Dominance Relationship
In order to deal with the incomplete information system with a variety of noise data,dominance information and other information, and acquire decision rules, the thought and method of the set pair theory, dominance relationship and variable precision rough set are used to construct a novel dominance variable precision rough set model based on set pair situation.With respect to the incomplete information system containing the missing attribute values, by utilizing the set pair analysis method, a set pair situation dominance relationship based on the threshold α connection degree is defined,and it is used to substitute the equivalence relationship of the variable precision rough set model,so that a novel variable precision rough set model based on the set pair situation is established, and its properties are researched.An example shows the feasibility and effectiveness of the proposed model.
incomplete information systemdominance relationshipset pair situationrough setattribute set
国家科技期刊平台
NSTL
万方数据
维普
