采用双层规划模型描述弹性需求条件下的连续平衡网络设计问题，设计了近似解的启发式算法。
A bilevel programming model and heuristic solution algorithm is proposed to model the continuous equilibrium network design problem with elastic demand.
文章将供应商、经销商追求利益最大化目标与用户需求的相互作用表述为一个双层规划问题。
This paper a bilevel programming problem which assumes that the interaction between suppliers and distributors will be pursued to maximize the objectives and the user needs.
以连续网络设计问题为主要研究对象，分析了连续网络设计问题双层规划数学模型的结构特点。
With continuous network design problems as the main study subject, it analyzes the structural characteristics of mathematical model of the bilevel programming for continuous network design problems.
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