V2EX near-linear

Near-linear

释义 Definition

“近线性”的;指增长或复杂度与输入规模 n 大致成正比,通常写作 \(O(n)\) 或接近 \(O(n)\)(如 \(O(n \log n)\) 常被口语上称为“近线性”)。在算法、计算成本、数据规模增长等语境中最常见。

发音 Pronunciation (IPA)

/nr lnir/

例句 Examples

A near-linear scan of the list is fast enough for small inputs.
对列表做一次近线性扫描对小规模输入来说足够快。

With a good index, the query time stays near-linear even as the dataset grows.
有了良好的索引,即使数据集增长,查询时间也能保持近线性水平。

词源 Etymology

near(“接近、近似”)+ linear(“线性的”)组合而成;linear 源自拉丁语 linearis(“线的、成直线的”),再往上追溯到 linea(“线”)。整体用于表达“接近线性关系/线性复杂度”的含义。

相关词 Related Words

文学作品 Literary Works

  • The Art of Computer Programming(Donald E. Knuth)
  • Introduction to Algorithms(Thomas H. Cormen 等)
  • The Design and Analysis of Computer Algorithms(Aho, Hopcroft, Ullman)
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