论文部分内容阅读
综合评判法应用的关键问题是影响因素权重的合理取值,取值的不同对最终的评判结果有着很大的影响。目前,尽管确定权重的方法很多,但各有一定的不足。针对这一问题,提出了一种基于优化理论的权重反分析方法,把直接给权重问题转化为通过实际工程样本反求各影响因素权重问题。并推导了基于可拓学和遗传算法的权重反分析的数学优化模型,编制了相应的计算程序。该权重反分析方法是一种通用方法,可用于任何求解权重的问题,为权重的求解提供了一种新思路,其求解过程完全由实际样本驱动,不需先知经验,特别是在没有专家经验的情况下具有很强的可操作性。最后将该模型应用于实际工程问题,分析计算结果表明该方法的计算结果是可靠的。
The key problem of the application of the comprehensive evaluation method is the reasonable value of the weight of the influencing factors. The difference of the values has a great influence on the final evaluation result. At present, although there are many ways to determine the weight, each has its own shortcomings. Aiming at this problem, this paper proposes a weighted inverse analysis method based on optimization theory, which transforms the problem of weight directly into the weight of each influencing factor through the actual engineering samples. The mathematics optimization model based on exponential back analysis of extenics and genetic algorithm is deduced, and the corresponding calculation program is compiled. The weight inverse analysis method is a general method, which can be used for any problem of weighting. It provides a new way to solve the weight problem. The solving process is completely driven by the actual sample, without the experience of the prophet, especially in the absence of expert experience The case of a strong maneuverability. Finally, the model is applied to practical engineering problems, and the results show that the method is reliable.