V2EX quantization

Quantization

释义 Definition

量化;量子化:把连续的数值(如声音、图像亮度、信号强度)转换为有限个离散等级的过程,常见于数字信号处理与机器学习中。(在物理语境中也可指“能量取离散值”的量子化。)

发音 Pronunciation

/kwn.tze.n/

例句 Examples

Quantization turns an analog signal into digital values.
量化把模拟信号转换成数字数值。

To reduce the model size, the engineers used 8-bit quantization, which slightly lowered accuracy but greatly improved speed.
为了减小模型体积,工程师采用了 8 位量化,准确率略有下降,但速度大幅提升。

词源 Etymology

quantization 来自 quantize(使量化/使量子化),其核心词根 quant- 源于拉丁语 quantus(“多少、数量”)。后缀 -ization 表示“……化/过程”,因此整体含义就是“把某物变成按数量级分档(离散化)的过程”。

相关词 Related Words

文学作品 Literary Works

  • Claude E. Shannon,《A Mathematical Theory of Communication》(1948):在信息与通信的经典理论框架下讨论与数字表示相关的概念语境中常涉及量化问题。
  • Alan V. Oppenheim & Ronald W. Schafer,《Discrete-Time Signal Processing》:信号处理领域经典教材,系统讨论采样与量化带来的误差与影响。
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