【摘要】 通过对多指标决策问题的研究,在兼顾方案偏好信息和客观信息的基础上,把决策指标分成5个级别,再通过指标级别来确定它的权重值。然后,在自定义指标线段、理想指标线段等基础上,利用余弦公式,求决策方案与理想方案中指标线段和理想指标线段之间夹角余弦,建立多指标决策问题的优化模型。最后,用该法对某市公交线网进行了优化决策,并获得了满意结果,而且该法简单实用、结果可信。更多还原

【Abstract】 This paper studied the multiple decision problems,based on considering both the preference information of schemes and the scheme value of objective information,and gave a five scale values method for the decision indices. The attribute weight were derived by using indices scale valuation.Then based on multiple indexes line segment,it built up a cosinus decision model that gave the cosinus ideal plan and decision plan.This method is simple and practical and the result is believable.更多还原