V2EX dirichlet

Dirichlet

Definition / 释义

Dirichlet(狄利克雷):指德国数学家约翰彼得古斯塔夫勒热纳狄利克雷(Johann Peter Gustav Lejeune Dirichlet, 18051859)的姓氏;在数学与统计学中常用作冠名,表示与他相关的概念与定理,例如 Dirichlet condition(狄利克雷条件)Dirichlet boundary condition(狄利克雷边界条件)Dirichlet distribution(狄利克雷分布)Dirichlet’s theorem(狄利克雷定理)等。

Pronunciation / 发音

/drkle/

Examples / 例句

We used a Dirichlet prior in the model.
我们在模型中使用了狄利克雷先验。

Dirichlet's theorem on arithmetic progressions shows that certain number sequences contain infinitely many primes.
狄利克雷关于算术级数的定理表明:某些数列中包含无穷多个素数。

Etymology / 词源

该词来自数学家 Dirichlet 的姓氏,属于以人物命名的“冠名词”(eponym)。由于他在数论、傅里叶分析与边值问题等领域的贡献显著,后人用其姓氏来命名相关的条件、定理与分布。

Related Words 相关词

Notable Works / 文学与名著中的用例

  • Pattern Recognition and Machine Learning(Christopher M. Bishop)讨论 Dirichlet distribution / Dirichlet prior
  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman)在概率模型与混合模型相关内容中涉及狄利克雷思想/相关分布。
  • Bayesian Data Analysis(Gelman et al.)常出现 Dirichlet prior 作为多项分布的共轭先验。
  • Lectures on Number TheoryVorlesungen über Zahlentheorie,Dirichlet 讲义,后由 Dedekind 整理)与 Dirichlet’s theorem 等数论主题相关。
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