摘要
根据可拓集合理论构建并分析了物元可拓评价模型,指出了该模型在风险评价中存在待评物元超出节域而无法计算的局限性。针对物元可拓综合评价模型的局限性,对原构建的物元可拓评价模型进行了改进,即对每个量值都进行规格化处理,并用于防洪工程体系实例分析。结果表明,改进的物元可拓风险评价方法科学合理且计算简便,并考虑了相关性对风险等级评估的影响,有着广阔的应用推广前景。
We established and analyzed the extension matter - element evaluation model on the basis of extension set theory and pointed out the limitation of the model, i. e. , the calculation is impossible if the evaluated matter element exceeds segment. In the light of the limitation, the original model is modified by standardizing every single value and used in a risk analysis of flood control system. The results show that the modified extension matter element model is scientific and reasonable with the considera- tion of relativity of risk grade and is convenient in calculation, possessing good prospect of application and popularization.
出处
《人民长江》
北大核心
2010年第11期66-69,共4页
Yangtze River
关键词
可拓集合理论
评价模型
风险评价
防洪工程
extension set theory
evaluation model
risk evaluation
flood control project
