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针对信息不完全的偏好多属性决策问题,给出了一种基于拓展粗糙集的决策分析模型.首先提出了限制相似优势关系的概念;然后在限制相似优势关系下得到知识的粗糙近似,给出了分类决策规则.对比分析证明:限制相似优势关系既保留了相似优势关系的优点,又在一定程度上克服了相似优势关系的局限性.最后通过一个实例验证了所提出的模型对信息不完备决策系统的处理更符合实际情况.
In order to solve the problem of multi-attribute preference decision making with incomplete information, a decision analysis model based on extended rough sets is proposed.Firstly, the concept of restricting similar dominant relationships is proposed, and then the rough approximation of knowledge is obtained under the constraint of similar advantages, The classification and decision rules are contrastively analyzed.The results of comparative analysis show that the restrictions on similar advantages not only retain the advantages of similar advantages but also overcome the limitations of similar advantages.Finally, Decision-making system more in line with the actual situation.