The vessel stowage planning is not only a complex combination and optimization problem, but also a NP-Complete problem.
大型集装箱船舶配载问题是一个复杂的组合优化问题，而且是一个NP问题。
Function optimization experiments show that which operator works better in an algorithm depends on both the combination capability of the operator and the problem to be optimized.
函数优化实验研究表明，在算法中采用何种离散重组算子较为合适与算子的组合能力有关，也与优化问题有关。
The hot rolling lot planning in iron and steel enterprises is a large-scale combination optimization problem with many restrictions.
钢铁生产中热轧批量计划编制属于多约束情况下大规模组合优化问题。
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