协调决策信息系统中不承诺决策的转化

Transformation of No-commitment Decision in Coordination Decision Information System

三支决策是对传统二支决策的推广,它是在原有的二支决策中增加了不承诺决策,为已知条件和最终决策之间增加了一个缓冲,避免了因信息不足时做出承诺型决策所应承担的风险。但是,不承诺决策的效果等同于拒绝决策。首先对形式背景中的离散型变量进行属性约简,进而提取出核心属性,然后利用提取到的核心属性构造决策树,再进一步根据生成的决策树进行规则的提取,最后根据对决策规则的可信度要求,选择最终的决策规则,实现不承诺决策的转化。经过实例验证,证明了模型的正确性和可行性。

The three-way decisions are the extension of traditional two-way decision,it adds no-commitment decision in original two-way decision,no-commitment decision adds a buffer between the known conditions and the final decision,so as to avoid the risk because of the lack of information when the commitment decision should take the decision.But,no-commitment is equivalent to the rejection decision.Firstly,attribute reduction of discrete variables in the formal background was conducted,then to construct a decision tree to extract,and then a decision tree was constructed by using the extracted core attributes,according to the generated decision tree rules extraction was conducted.Finally,according of the credibility of requirements the decision rules,a final decision rule was chosen,and then the conversion of no commitment to decision-making were verified.The correctness and feasibility of the model are prove by an example.