不完备信息系统中基于加权联系度的粗集模型拓展

Extension of rough set model based on weighted connection degree in incomplete information systems

在评价几种已有的针对不完备信息系统的粗集拓展模型的基础上,提出了一种基于加权 联系度的粗集拓展模型。在对各属性重要性排序的前提下,对不完备信息系统进行进一步的粗集模 型拓展。通过实例说明该模型更符合人的主观要求和客观现实。

Several known extended rough set models were analyzed, a model based on weighted connection degree was proposed. In this model,the importance of each attribute was estimated before farther extension of rough set model in the incomplete information system. Finally, the experiment result shows that the model has good coincidence with user's subjective request and objective reality.