We described the distribution network flow and get an algorithm of minimum cost flow about a special distribution network flow problem by extending the network simplex method.
对分配网络流做了介绍，通过将网络单纯形算法加以推广，得到了一类特殊分配网络流的最小费用流的一种算法。
On this basis, in order to minimize the two objectives of the transport costs to model, to convert it into a network flow model with a stratified, with the minimum cost maximum flow algorithm.
在此基础上以运输成本最小化为二级目标建立模型，将其转化成带有分层的网络流模型，用最小费用最大流算法进行求解。
Then we construct a capacity cost network from the debt credit degree network. Finally, by applying minimum cost circulation flow problem, we give a polynomial algorithm for this model.
然后由债务信度网络构造了容量费用网络，利用最小费用循环流问题给出了该模型的一个多项式算法。
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