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针对一般粗糙集方法不能由有限数据给出完整决策规则的问题,定义了正协调、负协调和混合协调决策信息系统,研究了正协调系统的优势关系决策规则获取方法,在此基础上提出了负协调和混合协调系统的优势关系决策规则获取方法,形成了协调决策信息系统的优势粗糙集方法,即协调优势粗糙集方法.将该方法应用到无人战斗机目标威胁估计中,建立了无人战斗机目标威胁估计决策信息系统,分析了目标属性的偏好性,给出了决策算法,对算法的复杂度进行了分析,并与Greco优势粗糙集方法进行了比较.结果表明:该方法简单可行,得到的确定性决策规则可以涵盖目标条件属性的所有取值,有效地解决了决策规则的不完备性.
Aiming at the problem that the general rough set method can not give the complete decision rules by finite data, the positive and negative coordination and mixed coordination decision-making information systems are defined, and the method for obtaining the dominant relation decision rules of the positive coordination system is studied. On the basis of this, Negative coordination and hybrid coordination system, the advantages of the decision-making rules are obtained, which forms the advantage rough set method to coordinate the decision-making information system, that is, the method of coordinating the advantages rough set method.This method is applied to the unmanned aircraft target threat estimation, Fighter target threat estimation decision-making information system, the preference of the target attribute is analyzed, the decision algorithm is given, the complexity of the algorithm is analyzed and compared with Greco’s advantage rough set method.The results show that this method is simple and feasible, The deterministic decision rules obtained can cover all the values of the target condition attributes and effectively solve the incompleteness of the decision rules.