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针对已有扩充粗糙集模型处理不完备信息系统的局限性,在已有扩充模型的基础上,基于集对分析理论中集对势的概念定义了一种新的对象之间的分类关系,称为集对势容差关系,并由此给出一种新的粗糙集扩充模型。从局部角度,分析说明该模型的分类性能优于已有方法。同时选用UCI数据库中的数据集进行测试,通过实验表明该模型的整体分类性能也优于已有方法。因此更加适合大型不完备信息系统的处理。
Aiming at the limitations of the existing extended rough set model for processing incomplete information systems, based on the existing extended models, a new classification relationship between objects is defined based on the concept of set pair potential in set pair analysis theory To set the relationship between the tolerance, and thus a new model of the expansion of the rough set. From a local perspective, the analysis shows that the classification performance of the model is superior to the existing methods. At the same time, the data set in the UCI database is selected for testing. Experiments show that the overall classification performance of the model is better than the existing methods. So more suitable for large-scale processing of incomplete information systems.