基于焦元信度再分配的多证据直接融合算法

A Direct Fusion Algorithm for Multiple Pieces of Evidence Based on Focal Elements Belief Redistribution

为提升高冲突情况下的证据融合效果,本文提出一种基于焦元信度再分配的多证据直接融合算法。新算法能够根据矛盾因子的结构特点,通过焦元的权重大小,对多元冲突信息再分配,最后对整个证据体进行直接融合,避免了因证据融合次序和变异焦元影响证据融合结果。理论分析和仿真实验结果表明,新算法提高了冲突证据情况下的证据融合效果,且具有较好的稳定性。

In order to improve the fusion results of evidences in dealing with high conflict information,A direct fusion algorithm for multiple pieces of evidence based on focal elements belief redistribution is proposed.According to the characteristic of focal elements credibility in the conflict factor,conflict information for multiple pieces of evidence is assigned involved by weight in the new algorithm.The possible error resulting from the evidence fusion order and variation of focal elements could be avoided.Theoretical analysis and simulation results show that the new algorithm can improve the evidence fusion effect in the case of high conflict evidence and has good stability.