V2EX flow network

Flow Network

释义 Definition

流网络:在图论与算法中,一种带有方向容量(capacity)的网络模型。每条边都有可通过的最大流量,通常指定一个源点(source)和一个汇点(sink),用于研究如最大流(max flow)最小割(min cut)等问题。(在某些语境下也可泛指“流动的网络”,但最常见的是算法/运筹学含义。)

发音 Pronunciation (IPA)

/flo ntwrk/

例句 Examples

A flow network has a source and a sink.
流网络有一个源点和一个汇点。

We modeled the city’s water pipes as a flow network to compute the maximum amount of water that can reach the hospital under capacity limits.
我们把城市供水管道建模为流网络,以便在容量限制下计算能到达医院的最大供水量。

词源 Etymology

flow 来自古英语 flōwan,意为“流动”;networknet(网)+ work(织造/结构)构成,原指“像网一样的结构”。合在一起的 flow network 直译为“流动的网络”,在20世纪的运筹学与计算机科学中固定为“带容量约的有向网络模型”。

相关词 Related Words

文学与经典著作 Literary / Notable Works

  • Introduction to Algorithms(Cormen, Leiserson, Rivest, Stein,常称 CLRS):以 flow network 为核心概念系统讲解最大流与最小割。
  • Network Flows: Theory, Algorithms, and Applications(Ahuja, Magnanti, Orlin):以流网络为主线的经典教材与参考书。
  • Combinatorial Optimization: Polyhedra and Efficiency(Alexander Schrijver):在组合优化框架下讨论网络流相关理论。
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