作　　者： ;

机构地区： 广东技术师范学院机电学院

出　　处： 《现代制造工程》 2009年第3期87-89,共3页

摘　　要： 提出一种基于条件熵的粗糙集连续属性离散化方法,得出决策表在离散化后,保持其相容性的充分必要条件是基于条件属性的决策属性的条件熵为零,并在此基础上给出基于条件熵的粗糙集属性离散化步骤,最后进行实例分析,为解决粗糙集连续属性的离散化问题奠定一定的理论基础。 A method of discretization of continuous attributes in rough sets based on conditional entropy is proposed in this method. A conclusion is drawn in this method, the sufficient and necessary condition of keeping the decision table consistency after discretization is conditional entropy of decision attributes about condition attributes equals zero. And based on this conclusion,the process of discretization of attributes in rough sets based on conditional entropy is presented. In the end, an example analysis is done. The study can lay a theoretical foundation for solving the problem of discretizaiton of continuous attributes in rough sets.

关 键 词： 粗糙集 连续属性 离散化 条件熵

领　　域： [机械工程]