基于改进证据理论的建筑环境CPS决策级融合

针对传统D_S证据理论存在高冲突证据时,而引起"悖论"将导致建筑环境CPS决策不准确的问题,采用计算证据间的博彩许诺距离方法,结合传统冲突因子,对D_S证据理论数据源的处理方法进行调整。该方法由证据间的博彩许诺距离得到证据冲突程度,再按"互补"原理转化为相互支持度,从而确定证据的权重系数,使D_S证据理论的决策更加精确。数据分析和仿真表明,改进后的D_S证据理论方法可以有效地处理证据冲突,并使得决策结果更加合理。

In view of the traditional D_S evidence theory may have high evidence will cause paradox lead to the problem that The CPS of Building Environment decision-making inaccurate, By adopting the method of calculation gambling promises distance between evidence, and combine the traditional Conflict factor, In order to adjust D_S evidence theory data processing methods. This method base on the gambling between the promises to get the level of conflict. According to the principle of ＂complementary＂ converted to support each other, to determine the weight coefficient of the evidence, So that the decision-making of D_S evidence theory is more accurate. Data analysis showed that, the improved D S evidence theory method can effectively deal with conflict evidence, and make the decision result is more reasonable and more decisions.