V2EX dpll

DPLL

释义 Definition

DPLL(DavisPutnamLogemannLoveland 算法):一种用于判断布尔可满足性问题(SAT)是否有解的经典回溯搜索算法,常用于处理合取范式(CNF)公式。它通过“分裂赋值(decision)+ 单子句传播(unit propagation)+ 回溯(backtracking)”等步骤系统地寻找满足解。(在计算机科学语境中最常见;在其他领域含义较少。)

发音 Pronunciation (IPA)

/di pi l l/

例句 Examples

DPLL is a classic algorithm for solving SAT problems.
DPLL 是一种用于求解 SAT 问题的经典算法。

Modern SAT solvers build on DPLL ideas, adding heuristics and clause learning to scale to large CNF instances.
现代 SAT 求解器以 DPLL 思想为基础,加入启发式策略与子句学习,从而能处理更大规模的 CNF 实例。

词源 Etymology

DPLL 是四位研究者姓氏首字母缩写:Martin Davis、Hilary Putnam、George Logemann、Donald Loveland。该系列方法源自 1960 年代关于自动定理证明与可判定性的研究;其中 DPLL 版本以“分支选择 + 传播 + 回溯”的形式奠定了现代 SAT 求解的核心框架。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Davis, Logemann & Loveland: “A Machine Program for Theorem-Proving” (常被视为 DPLL 经典来源之一,学术引用中频繁出现 DPLL)
  • Handbook of Satisfiability(关于 SAT/DPLL/CDCL 的权威综述性著作中大量出现 DPLL)
  • Decision Procedures: An Algorithmic Point of View(介绍 SAT 与 DPLL 框架及其在判定过程中的作用)
  • Artificial Intelligence: A Modern Approach(在逻辑推理、可满足性与搜索相关章节中常提及 SAT/DPLL 思想)
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