V2EX linearly separable

Linearly Separable

定义 Definition

linearly separable线性可分的。指在分类问题中,两类(或多类)数据可以用一条直线(二维)、一个平面(三维)或更高维中的一个超平面完全分开,使不同类别落在分隔面的两侧。(也常用于机器学习/统计学习语境。)

发音 Pronunciation

/lnirli sp()rb()l/

例句 Examples

The two classes are linearly separable.
这两类数据是线性可分的。

If the data were linearly separable, a single hyperplane could classify all points correctly, but in practice we often need a nonlinear model or feature mapping.
如果数据是线性可分的,那么一个超平面就能把所有点正确分类;但在实际中我们往往需要非线性模型或特征映射。

词源 Etymology

该短语由 linearly(“以线性的方式”,来自 linear,意为“线的、线性的”)和 separable(“可分离的”,来自拉丁语词根 separare,意为“分开”)组合而成。整体含义即“能够用线性边界分开”。

相关词 Related Words

文学与经典著作 Literary Works

  • Pattern Recognition and Machine Learning(Christopher M. Bishop)讨论线性分类器与可分性概念
  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman)涉及线性可分、间隔与分类边界
  • “The Perceptron: A Probabilistic Model for Information Storage and Organization in the Brain”(Frank Rosenblatt)感知机与线性可分性密切相关
  • The Nature of Statistical Learning Theory(Vladimir Vapnik)SVM与可分性、间隔理论
  • Deep Learning(Goodfellow, Bengio, Courville)在表征学习语境中提及线性可分性作为特征质量指标之一
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