证据推理中局部冲突部分分配策略

为了解决证据理论中冲突证据合成问题,提出了一种局部冲突部分分配策略。该策略假设证据具有一致可信度,设定一个阈值,将大于该阈值的局部冲突按比例分配给产生该冲突的焦元,并用标准合成规则对证据进行融合,使合成的结果更加可靠。仿真结果表明该策略能有效解决冲突证据合成问题。

Partial distribution strategy of local conflict in evidence theory

In order to solve the problem of conflict evidence combination in standard evidence theory, this paper proposed a kind of partial distribution strategy of local conflict. Assuming that the evidences had consistent reliability, the method proportionally distributed the local conflicts which was greater than threshold to those focus elements which contributed to the conflict. Then, it used the standard combination rule to achieve evidence fusion and obtained more reliable results. The simulation results demonstrate that the proposed method can effectively solve the problem to conflict evidence combination.