V2EX minimum-spanning-tree

Minimum-Spanning-Tree

释义 Definition

最小生成树(MST):在一个带权无向连通图中,选取一棵包含所有顶点的生成树,使得所有边的权重之和最小。(常见于图论与算法;也可写作 minimum spanning tree

发音 Pronunciation (IPA)

/mnmm spn tri/

例句 Examples

A minimum-spanning-tree connects all the nodes with the least total cost.
最小生成树以最小的总成本连接所有节点。

To optimize the network layout, the engineer computed a minimum-spanning-tree from the weighted graph and then added a few extra links for redundancy.
为优化网络布局,工程师从带权图中计算出一棵最小生成树,然后再添加少量额外链路以实现冗余。

词源 Etymology

该术语由三部分构成:minimum(最小的)+ spanning(“跨越/覆盖全部”的,来自 span “跨越”)+ tree(树,指图论中的“无环连通结构”)。合起来描述一种“覆盖所有顶点、且总权重最小的树形结构”。这一概念在20世纪中期的图论与运筹学发展中被系统化,常与 KruskalPrim 等算法并列出现。

相关词 Related Words

文学与经典作品 Notable Works

  • Introduction to Algorithms(Cormen, Leiserson, Rivest, Stein,《算法导论》):在“最小生成树”章节系统讲解 MST、Kruskal 与 Prim 算法及其证明思路。
  • The Algorithm Design Manual(Steven S. Skiena,《算法设计手册》):以工程化视角介绍 MST 的典型应用场景与实现要点。
  • Algorithms(Robert Sedgewick & Kevin Wayne,《算法》):以示例与可视化思路讲解最小生成树与贪心策略。
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