V2EX max-flow

Max-flow

Definition / 定义

max-flow(最大流):图论与网络优化中的概念,指在一个有容量限制的网络中,从源点(source)汇点(sink)在不超过各边容量的前提下,能够输送的最大总流量。常与 min-cut(最小割) 定理一起出现。
(在工程语境中也可指“最大流量/最大流速”,但在算法领域通常指“最大流问题”。)

Pronunciation / 发音

/mks flo/

Examples / 例句

We used a max-flow algorithm to find the best way to route traffic.
我们用最大流算法来找出交通分流的最佳路线。

The max-flow value increases if we add capacity to the bottleneck edge, but it may still be limited by a different cut elsewhere in the network.
如果我们增加瓶颈边的容量,最大流值会提高,但它仍可能被网络中别处的另一条割所限制。

Etymology / 词源

maxmaximum(最大值) 的常见缩写;flow 来自古英语 flōwan(“流动”)。合起来 max-flow 字面意思就是“最大流(量)”,在 20 世纪中期的网络流研究中成为标准术语。

Related Words / 相关词汇

Literary Works / 文学作品

  • Maximal Flow Through a Network(Ford & Fulkerson,1956):最大流经典论文,奠定了增广路方法的基础。
  • Introduction to Algorithms(Cormen, Leiserson, Rivest, Stein):常以 “Maximum flow” 章节系统介绍最大流与最小割。
  • Network Flows: Theory, Algorithms, and Applications(Ahuja, Magnanti, Orlin):网络流领域权威教材,涵盖最大流及其应用。
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