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以区间值信息系统上的变精度相容关系所确定的极大变精度相容类作为的基本知识,在相似水平不变的情形下,提出了极大变精度相容类的属性描述、相对约简、决策规则及相对最优决策规则等概念.最后,针对极大变精度相容类,定义了一种基于区分矩阵的区分函数,并通过计算区分函数的析取范式得到获取区间值信息系统相对最优决策规则的具体操作方法.
Based on the basic knowledge of the maximally variable precision compatible classes determined by the variable-precision compatible relationship on the interval value information system, the property description of the maximally variable-precision-compatible classes is proposed under the condition that the similar level remains unchanged. Reduction, decision rules and the relative optimal decision rules.Finally, a discriminative function based on the discriminant matrix is defined for the maximally variable precision class and the interval value information is obtained by computing the disjunctive paradigm The system is relatively optimal decision-making rules of the specific method of operation.