V2EX mixed-integer-programming

Mixed-Integer Programming

Definition / 定义

混合整数规划(MIP):一种数学优化方法,其中部分决策变量被限制为整数(常为0/1),而其余变量可以是连续实数。常用于排产、选址、物流、投资组合、网络设计等需要“离散选择 + 连续数量”同时存在的问题。(该领域还有相关分支如 MILP、MIQP 等。)

Pronunciation / 发音

/mkst n.t.dr pro.rm./

Examples / 例句

We solved the scheduling problem using mixed-integer programming.
我们用混合整数规划求解了这个排程问题。

Because some decisions are yes-or-no while others are continuous costs, the model is best formulated as a mixed-integer programming problem with capacity constraints.
由于有些决策是“是/否”选择,而另一些是连续成本,因此该模型最适合表述为带容量约束的混合整数规划问题。

Etymology / 词源

该术语由三部分构成:mixed(混合的) + integer(整数的) + programming(规划)。这里的 programming 源自“数学规划/优化”的传统用法,指建立并求解优化模型;mixed-integer 强调变量类型“既有整数变量也有连续变量”,从而区别于纯线性规划(LP)或纯整数规划(IP)。

Related Words / 相关词汇

Literary Works / 文学作品

  • Integer Programming(Laurence A. Wolsey)系统介绍整数规划与混合整数规划的经典教材。
  • Integer and Combinatorial Optimization(George L. Nemhauser, Laurence A. Wolsey)组合优化与整数/混合整数模型的重要参考书。
  • Model Building in Mathematical Programming(H. Paul Williams)常用优化建模书籍,含大量混合整数规划建模示例。
  • Introduction to Operations Research(Hillier & Lieberman)运筹学教材中常以 MIP 讲解选址、排程等应用。
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