V2EX shortest-path

Shortest-Path

释义 Definition

最短路径:在一张图(或道路网络)中,从起点到终点总成本最小的一条路径;“成本”通常指距离、时间、权重之和等。在计算机科学中常指图论/算法里的“Shortest Path Problem”(最短路问题)。

发音 Pronunciation (IPA)

/rtst pθ/

例句 Examples

The app always chooses the shortest path to your destination.
这个应用总是选择到达目的地的最短路径。

To deliver packages efficiently, the company models streets as a weighted graph and computes the shortest path for each driver.
为了高效配送,这家公司把街道建模为加权图,并为每位司机计算最短路径。

词源 Etymology

shortest(“最短的”,short 的最高级)+ path(“路径/小路”)构成的组合词。随着交通规划与计算机图论的发展,“shortest path”逐渐固定为一个术语,用来指代在给定规则(距离、时间、权重)下的最优路线。

相关词 Related Words

文学与作品 Literary Works

  • Thomas H. Cormen et al. Introduction to Algorithms(常称 CLRS):以“shortest paths”作为经典章节主题之一。
  • Edsger W. Dijkstra “A note on two problems in connexion with graphs”(1959):提出著名的最短路径算法(Dijkstra 算法)。
  • Robert Sedgewick & Kevin Wayne Algorithms:在图算法部分系统讲解最短路径相关问题与实现。
  • Donald E. Knuth The Art of Computer Programming:在算法与图相关讨论中涉及最短路径等典型问题。
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