一种新的基于权重系数的证据理论合成方法

D-S证据理论可以有效地处理不确定信息,是有效的数据融合方法之一。但在证据高度冲突时,因其归一化过程会产生有悖常理的无效结果,因此不同证据源的冲突处理成为数据融合的主要问题之一。基于此,提出了一种新的证据合成方法,该方法充分考虑了证据在合成过程中的重要程度,通过引入权重系数,提高了证据合成的可靠性和合理性,得到更为理想的合成结果。

A New Evidence Combination Method based on Weight Coefficients

D-S evidence theory is an efective method of processing imperfect information.It is widely used in data fusion systems.However,it involves counter-intuitive behavious when the high conflict inform ation exists.Conflict management is a major problem especially during the fusion of various information sources.A new evidence combination method is presented here.In this improved method,the importance of the evidences is calculated.It enhances the rationality and reliability of the evidence combination through introducing weight coefficients and better results can be acquired.