V2EX reachability

Reachability

释义 Definition

Reachability(可达性):指某个位置、系统状态或网络节点是否能够到达,以及到达的可能性/程度。常见于计算机网络、图论、自动化控制与交通规划等语境。(也可泛指“可接触性、可取得性”。)

发音 Pronunciation (IPA)

/ritblti/

例句 Examples

Reachability is essential for designing a reliable network.
可达性对设计可靠的网络至关重要。

In graph theory, reachability determines whether there is a path from one vertex to another under given constraints.
在图论中,可达性用于判断在给定约束下,是否存在从一个顶点到另一个顶点的路径。

词源 Etymology

reach(到达、触及)+ 名词后缀 -ability(……的能力/可能性)构成,字面意思是“能够到达的性质”。在技术语境中逐渐固定为描述“能否从A到B”的概念。

相关词 Related Words

文学作品 Literary Works

  • Douglas R. Hofstadter Gdel, Escher, Bach: An Eternal Golden Braid(讨论形式系统与结构关系时常涉及“可达性/可到达状态”的概念)
  • Neal Stephenson Cryptonomicon(涉及计算与网络相关话题的叙述中可见技术词汇语境,包括类似“可达性”的讨论)
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