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针对含弱决策的证据融合在低冲突情况下仍出现反直观结果的问题,提出一种决策距离修正下的证据合成方法.首先,给出弱决策证据定义,提出一种名为决策距离的新度量方法,可表述单证据的决策,通过融合Jousselme距离可更有效地描述弱决策证据与其他证据间的差异;然后,根据检测弱决策证据和一票否决证据是否同时存在,提供两种不同的修正系数,可有效扩大多数证据与其他证据修正系数的差距,削弱一票否决证据的影响;最后,对证据源修正并合成.实验结果表明,该合成方法能较好地解决弱决策证据融合问题,融合结果收敛快,决策更可靠,不确定性小,是对现有研究的良好补充.
Aiming at the problem that anti-intuition result still appears in the case of low conflict, this paper proposes a method of evidence synthesis based on modified decision-making distance.First, we give the definition of weak decision evidence and propose a new measure named decision distance Method, which can describe the decision of a single evidence, the difference between the weak decision evidence and other evidence can be more effectively described through the fusion of Jousselme distance. Then, based on the detection of weak decision evidence and whether the one-vote vexation exists, two different amendments Coefficient to effectively widen the gap between majority evidence and other evidence revision factors and weaken the impact of one-vote veto evidence. Finally, the evidence sources are revised and synthesized. Experimental results show that the proposed method can better solve the problem of weak decision evidence fusion, Convergence results convergence fast, more reliable decision-making, less uncertainty, is a good supplement to the existing research.