V2EX informed search

Informed Search

释义 Definition

informed search有信息的搜索/基于先验知识的搜索。指在搜索或求解时利用已有信息(如启发式、背景知识、关键词线索、约束条件)来更快、更有效地找到目标;常与 uninformed (blind) search(无信息/盲目搜索)相对。该短语在计算机科学(人工智能、信息检索)与日常语境(“做过功课的检索/查找”)中都常见。

发音 Pronunciation (IPA)

/nfrmd st/
/nfmd st/

例句 Examples

I did an informed search before buying the laptop.
我在买这台笔记本电脑之前做了有信息的搜索(先做了功课、查了资料)。

In AI, an informed search uses a heuristic to guide the algorithm toward the goal more efficiently than blind search.
在人工智能中,有信息的搜索会使用启发式信息来引导算法,从而比盲目搜索更高效地接近目标。

词源 Etymology

informed 来自动词 inform(提供信息、告知),词根与拉丁语 informare(“赋形、塑造;使了解”)相关;search 源自古法语 cerchier(寻找、搜寻)。合在一起,字面意思是“被信息所支撑的寻”,引申为“利用信息来引导的搜索”。

相关词 Related Words

文学与著作 Literary Works

  • Artificial Intelligence: A Modern Approach(Stuart Russell & Peter Norvig)在讲解搜索策略时常使用并对比 informed searchuninformed search
  • Introduction to Information Retrieval(Christopher D. Manning, Prabhakar Raghavan, Hinrich Schütze)讨论检索中的“利用信息/特征引导检索”的思想,与 informed search 的用法高度相关并常见该表述。
  • The Search: How Google and Its Rivals Rewrote the Rules of Business and Transformed Our Culture(John Battelle)在描述更“有依据/更有目标”的搜索行为时会出现类似 informed search 的表达与语境。
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