V2EX multinomial

Multinomial

释义 Definition

multinomial(多项的;多项式的;多项分布的):指涉及三个或以上类别/项的情况,常见于数学与统计学中(如多项式多项系数多项分布)。最常用语境是 multinomial distribution(多项分布)

发音 Pronunciation

/mltinomil/

例句 Examples

A multinomial distribution models outcomes with more than two categories.
多项分布用于建模包含两个以上类别的结果。

Using a multinomial logistic regression, the study predicted which transportation mode people chose, controlling for income and distance.
研究使用多项逻辑回归来预测人们选择的交通方式,并控制收入与距离等因素。

词源 Etymology

由 **multi-**(“多、多个”)+ -nomial(与“项/名称/项式”相关,常见于 binomial “二项的”、polynomial “多项式的”)构成。整体表达“由多个项/多个类别构成”的含义,因此在概率统计里常用来描述“多类别计数”的模型(如多项分布)。

相关词 Related Words

文学与著作 Literary & Notable Works

  • Pattern Recognition and Machine Learning(Christopher M. Bishop)讨论多项分布与多项逻辑回归等模型时频繁出现 multinomial
  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman)在分类问题与广义线性模型相关章节中使用 multinomial
  • An Introduction to Probability Theory and Its Applications(William Feller)在离散分布与计数型概率模型中涉及多项(multinomial)相关概念。
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