【摘要】 提出了基于突变理论和粗集约简理论的突发事件影响度评价方法。给出了突发事件影响度的评价指标,并采用粗集约简理论将影响因素约简为最小因素集。根据突变理论的归一公式给出了突发事件影响度的量化方法。该方法可将定量、定性指标纳入同一模型中,并可避免人为确定权重的主观性。实例表明,该方法是有效和可行的。更多还原

【Abstract】 A new technique for evaluating influence degree of rare event based on catastrophe theory and rough set reduciton theory was proposed.The index set of evaluating influence degree about rare event was established and reduced to a minimum set based on rough set theory.The evaluation method of influence degree about rare event was presented based on the normalization formula of catastrophe theory.The method can incorporate qualitative indexes and quantitative indexes in a model,and avoid the subjective quantification of assessment indexes.The calculated results by an example show feasibility and effectiveness of the method.更多还原