基于F-粗糙集的三支决策模型

A model of three-way decision based on F-rough sets

三支决策粗糙集模型进行决策时,往往将数据集中在一个信息表中,从整体角度分析客观事物并对其进行决策.然而在多人决策这种情况中,不同的人由于其自身知识不同会对同一事物做出不同的决策,这体现了局部性认识与决策过程.为了能从整体和局部认识事物并做出合理的最终决策,提出了基于F-粗糙集的三支决策模型,并给出了一个疑难杂症的医疗诊断过程中具体应用该模型的例子.

We will put all data into an information table and analyze objective entities from a single perspective when using the method of three way decision. However,in a case of multi persondecision,different people will make different decisions on the same object according to their own knowledge, which reflect partial cognition and decision. In order to make a reasonable decision on an object from both whole and partial cognition,this paper puts forward a model of three way decision based on F rough sets and provides an example about a decision making process of rare illness to explain the model in the last part.