The belief degree of diagnosis rules is determined by calculating the rough subjection degree of every rule.
通过计算诊断规则粗糙度，确定诊断规则的置信程度。
The optimal plans are determined by calculating comprehensively-evaluated values and creating the mathematical expressions of fuzzy subjection degree for diverse quantitative indexes.
建立了定量指标模糊隶属度的数学表达式。 通过计算综合评价值，从而确定出最优方案。
应用推荐