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根据网络路径上用户流的需求为多元化的特点,在考虑决策者事先无法给出具体选址数目和选址预算,而是通过投资收益来确定最终的设施位置和数目的基础上,提出了收益最大和选址成本最小以及利润和投资收益率最大化的两个双目标多元需求截流设施选址模型。在建立模型时考虑了消费者存在刚性需求和附带需求的情况。利用多目标优化技术将双目标模型转化为单目标的参数规划问题求解,给出求有效解的精确求解方法和近似求解方法,通过算例对这两种求解方法的结果和求解效率进行了比较。
According to the diversified characteristics of the user flow on the network path, based on the fact that the decision-maker can not give the specific site selection and site selection budgets in advance, but based on the investment income to determine the final location and number of facilities, Two dual-objective multivariate demand closure facilities location models that maximize returns and minimize site selection costs, as well as maximize profit and return on investment. In modeling, we consider the existence of rigid demand and incidental demand of consumers. The multi-objective optimization technique is used to convert the dual-objective model into a single-objective parametric programming problem. An exact solution and an approximate solution to the effective solution are given. The results of the two solutions and the solution efficiency are compared through examples .