摘要
为克服传统权值确定方法的主观性和任意性,探讨了粗糙集理论中知识熵的概念及度量方法,分析了案例特征属性的知识熵与权重之间的联系,提出了基于知识熵的案例特征权值确定方法.通过实例验证了运用该方法确定的权值具有更高的可信度.
To overcome the subjectivity and arbitrariness of the traditional methods of weighting,the concept and measurement of knowledge entropy based on rough set theory were discussed.The relationship between the knowledge entropy and the weight of case feature attributes was analyzed.Then a method of weight allocation to case feature attributes based on knowledge entropy was put forward.Higher reliability is validated,and the method has some guidance for other weight allocation problems.
出处
《西安工业大学学报》
CAS
2010年第4期402-405,共4页
Journal of Xi’an Technological University
关键词
案例特征
权值
粗糙集
知识熵
case feature attributes
weight
rough set theory
knowledge entropy
