mixed integer program problem 混合整数规划问题
Distribution network planning is a nonlinear mixed integer program problem which is usually difficult to be solved by conventional optimization algorithm.
配电网络规划属于非线性混合整数规划问题，应用传统数学优化算法往往难以直接求解。
The HEWC problem was formulated as an integer linear program, and an approximation solution was obtained by using LP-relation and rounding heuristic.
HEWC问题第一次被归结为一个整数线性规划问题，并且利用LP的放松问题和有界启发得到一个近似解。
When the maximal uncontrollable subnet is loop-in, the problem is a nonlinear integer program (NIP), which is difficult to be solved.
当最大不可控子网中有环时，控制律的求解变成了非线性整数规划(NIP)问题，而NIP问题的求解是非常困难的。
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