As we know, classic optimization techniques are not only troublesome in calculation, but also low efficient for the highly non-linear interval parameter optimal design model (IPODM).
对于高度非线性的城市污水处理厂区间数优化设计模型（ IPODM） ，若采用传统的方法求解，不仅计算繁琐，且难以有效地寻找全局最优解。
The DFP method of non-linear optimization is used to calculate shadow price in link. The REM algorithm is improved on the basis of analysis of REM algorithm and optimization flow control model.
在分析REM算法和最优化流控模型的基础上，改用非线性优化理论的变尺度算法计算链路影子价格， 从而改进丁REM算法。
Data envelopment analysis (DEA) and its non-linear model are introduced, and chaos optimization algorithm is used to find the non-linear model.
介绍了数据包络分析方法及其非线性模型，并提出了混沌优化求解算法。
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