摘要
如何确定Mass函数是D-S证据理论的棘手问题,本文从信息论的观点出发,提出一种新的计算Mass函数的算法。该算法依据证据体可信度因素和证据体与目标关联的相对熵来分配证据体的Mass函数,较全面反映证据体的不确定性。将方法应用于液压泵诊断中,结果表明它获取的Mass函数是符合实际情况的,具有较好的实用性,而且其算法容易实现。
How to assign the Mass function is a puzzle in the D-S evidence theory. From the perspective of information, a new algorithm for assigning Mass function was proposed. This method determines the uncertainty of the bodies of evidence, which combines the reliability of the bodies of evidence and the entropy of associated coefficient between the evidences and the targets~ It also generally reflects the total uncertainty of the evidences. Examples in fault diagnosis of hydraulic pumps show that this method adapts to circumstance, possesses better practicability and it is easy to realize.
出处
《机床与液压》
北大核心
2007年第12期185-187,共3页
Machine Tool & Hydraulics
