V2EX weighting factor

Weighting Factor

定义 Definition

weighting factor加权系数/权重因子。指在计算(如平均值、评分、模型训练或风险评估)中,用来表示某个数据、指标或部分相对重要性的数值;数值越大,影响越大。

发音 Pronunciation (IPA)

/wet fktr/

例句 Examples

The teacher used a weighting factor so homework counts less than exams.
老师使用了加权系数,让作业的占比低于考试。

In the risk model, each variable is multiplied by a weighting factor to reflect its importance under different scenarios.
在风险模型中,每个变量都会乘以一个权重因子,以反映其在不同情景下的重要性。

词源 Etymology

weighting 来自 weight(重量/权重),表示“赋予权重、加权”的动作;factor 源自拉丁语 factor(“做事者/因素”),在数学与科学语境里常指“系数、因子”。合在一起,weighting factor 就是“用于加权的系数/因素”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman):在模型与损失函数的讨论中常涉及“加权/权重因子”的表述。
  • Pattern Recognition and Machine Learning(Christopher M. Bishop):在概率模型、代价函数与加权数据的语境中出现相关用法。
  • Numerical Recipes(Press 等):在数值计算、加权拟合与误差处理章节中使用类似术语。
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