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本文指出了Dempster合成规则与Zadeh合成规则的局限性和不足.我们建议:对于未确知性信息的评价,如果专家们掌握证据之间的联系,他们就应共享所有证据以便得出合理的结论.这时,可以利用简便的加权平均法.如果专家们难以搞清证据之间的联系,这些证据就该按照其性质分成几组,再利用多级加权平均的方法.这种方法不仅使用方便,而且比现有的信息合成方法更合理.
This paper points out the limitations and shortcomings of the Dempster composition rule and the Zadeh composition rule.We suggest that for the evaluation of the unascertained information, if the experts grasp the connection between the evidences, they should share all the evidences in order to draw a reasonable conclusion. In this case, the simple method of weighted average can be used.If experts find it hard to find the connection between the evidences, these evidences should be divided into several groups according to their nature and then use multi-level weighted average method.This method is not only easy to use, And more reasonable than the existing method of information synthesis.