V2EX semidefinite-programming

Semidefinite Programming

释义 Definition

半定规划(SDP):一种凸优化问题。它通常以矩阵变量为对象,在满足矩阵半正定约束(如 \(X \succeq 0\))的条件下,最小化或最大化一个线性目标函数。常用于控制、组合优化近似、机器学习、信号处理等领域。(该术语也常写作 semidefinite optimization。)

发音 Pronunciation (IPA)

/smidfnt prorm/

例句 Examples

Semidefinite programming is a type of convex optimization.
半定规划是一种凸优化。

Using semidefinite programming, we can relax a hard combinatorial problem into a tractable convex form with provable bounds.
通过半定规划,我们可以把困难的组合优化问题放松为可计算的凸形式,并获得可证明的界。

词源 Etymology

Semidefinitesemi-(“半、部分”)+ definite(“确定的”)构成,源于线性代数中的“半正定矩阵”(eigenvalues 非负)。Programming 在优化语境中表示“规划/优化建模”,并非“编程写代码”。合在一起即“带半正定约束的优化规划”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Convex Optimization(Stephen Boyd, Lieven Vandenberghe)以 SDP 作为核心凸优化模型之一进行讲解与应用示例。
  • Handbook of Semidefinite Programming: Theory, Algorithms, and Applications(Henry Wolkowicz, Romesh Saigal, Lieven Vandenberghe 编)专门系统综述半定规划理论与算法。
  • Semidefinite Optimization and Convex Algebraic Geometry(Grigoriy Blekherman, Pablo Parrilo, Rekha Thomas)讨论 SDP 与和平方(SOS)等工具在代数几何与优化中的联系。
  • Interior-Point Polynomial Algorithms in Convex Programming(Yurii Nesterov, Arkadi Nemirovskii)涉及与 SDP 相关的内点法理论框架。
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