V2EX dynamic-programming

Dynamic Programming

定义(中文)/ Definition

动态规划:一种常用的算法设计思想,把一个复杂问题分解为相互重叠的子问题,先求解子问题并保存结果(记忆化或表格法),从而高效地得到原问题的最优解。常见于“最短路径、背包、序列比对、区间最优”等问题。(该术语在不同语境下也可简称为 DP。)

发音(IPA)/ Pronunciation

/danmk prorm/

例句 / Examples

Dynamic programming can solve the Fibonacci sequence efficiently.
动态规划可以高效地求解斐波那契数列。

By using dynamic programming, we computed the minimum edit distance between two strings while avoiding repeated work.
通过动态规划,我们在避免重复计算的同时求出了两个字符串的最小编辑距离。

词源(中文)/ Etymology

“Dynamic programming”这一术语由美国数学家 Richard Bellman 在 20 世纪 50 年代提出。“dynamic(动态的)”在这里更多强调“分阶段决策、逐步推进”的过程;“programming”在当时的学术语境里常指“规划/方案制定(planning)”,不单是今天意义上的“写程序”。因此它更接近“动态规划法”的含义。

相关词汇 / Related Words

文学与名著用例 / Literary & Notable Works

  • Richard Bellman Dynamic Programming(1957):该领域奠基性专著,系统提出与发展动态规划方法。
  • Thomas H. Cormen et al. Introduction to Algorithms(《算法导论》):以多个经典例题(如钢条切割、矩阵链乘法等)讲解动态规划。
  • Jon Kleinberg & va Tardos Algorithm Design:在算法设计章节中以动态规划作为核心策略之一,覆盖路径与序列类问题。
  • Donald E. Knuth The Art of Computer Programming(《计算机程序设计艺术》相关卷):涉及与动态规划相关的最优化与递推思想,并在算法分析语境中出现该术语或相关方法。
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