V2EX max norm

Max Norm

释义 Definition

max norm(也常指 ∞-范数 / 无穷范数):一种度量向量“大小”的方法,等于向量各个分量绝对值中的最大值;在机器学习中也可指一种基于“最大值约束”的正则化/约束方式(不同语境下定义可能略有差异)。

发音 Pronunciation

/mks nrm/

例句 Examples

The max norm of the vector (3, 5, 2) is 5.
向量 (3, 5, 2) 的 max norm 是 5。

To prevent overfitting, the model uses max norm regularization to keep the weights from growing too large during training.
为防止过拟合,模型使用 max norm 正则化,使权重在训练过程中不要变得过大。

词源 Etymology

max 来自 maximum(“最大值”);norm 源自拉丁语 norma(“规矩、尺度”),在数学中引申为“用来衡量大小的标准”。合起来 max norm 字面就是“以最大值为尺度的范数”。

相关词 Related Words

文献与作品 Literary Works

  • Convex Optimization(Stephen Boyd, Lieven Vandenberghe)讨论多种范数与约束,包含与 ∞-norm(max norm) 相关内容。
  • Matrix Analysis(Roger A. Horn, Charles R. Johnson)矩阵范数体系中常涉及与 max norm/∞-norm 相近或相关的概念。
  • Max-norm regularization for neural networks”(学术论文标题常见表述)在深度学习训练中以 max norm 约束/正则化权重的代表性研究方向。
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