V2EX error bound

Error Bound

释义 Definition

error bound(误差界/误差上界):在数学、统计或计算中,用来描述某个误差不会超过的最大范围(通常给出上界),用于衡量近似值、估计值或算法结果与真实值之间可能偏离的程度。也常见于“upper/lower error bound(误差上/下界)”。

发音 Pronunciation (IPA)

/rr band/

例句 Examples

The report gives an error bound of 0.5%.
报告给出了 0.5% 的误差界。

Using this theorem, we can derive an error bound that decreases as the sample size grows, ensuring the approximation becomes more accurate.
利用这个定理,我们可以推出一个随样本量增大而减小的误差界,从而保证近似会越来越准确。

词源 Etymology

error 来自拉丁语 error(“迷误、偏离”),引申为“误差”;bound 源自古法语 bonde(“界限、边界”),在数学语境中常指“界/界限”。合起来 error bound 就是“对误差设定的界限(上限或范围)”。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Introduction to Algorithms(CLRS,《算法导论》)在算法分析中讨论近似与复杂度时常涉及误差界/界。
  • Numerical Recipes(《数值计算方法》系列)在数值算法误差分析中频繁使用 error bound 概念。
  • Concrete Mathematics(Graham, Knuth, Patashnik,《具体数学》)在渐近分析、估计与界的推导中常见相关表述。
  • All of Statistics(Larry Wasserman,《统计学导论》)在概率界、不等式与估计误差分析语境中常出现类似术语。
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