V2EX hit rate

Hit Rate

释义 Definition

hit rate 指“命中率;成功率”,常用于表示攻击/射击命中目标的比例,或在检索、推荐、广告、实验等场景中表示成功命中(找到、匹配、点击等)的比例。在不同领域也可近似理解为“有效率”。

发音 Pronunciation (IPA)

/ht ret/

例句 Examples

The new pitcher has a high hit rate.
这位新投手的命中率很高。

In online search evaluation, we improved the hit rate by refining the ranking model and reducing irrelevant results.
在在线搜索评测中,我们通过改进排序模型并减少无关结果来提高命中率。

词源 Etymology

hit 源自中古英语,意为“击中、命中”;rate 来自拉丁语 rata(“已确定的数额/比例”)并经法语进入英语,常表示“比率、速率”。两者组合成 hit rate,字面即“命中的比例”,因此在军事/体育与数据评估语境中都很自然地被采用。

相关词 Related Words

文学与作品 Notable Works

  • Introduction to Information Retrieval(Christopher D. Manning, Prabhakar Raghavan, Hinrich Schütze)在信息检索评估语境中常讨论类似“命中率/成功命中”的指标体系。
  • The Practice of Programming(Brian W. Kernighan, Rob Pike)在测试与性能讨论中常出现与“成功率、错误率”同类的衡量表达(具体章节可能使用相近术语)。
  • A/B Testing 与数据分析类专业书籍(如统计学习、推荐系统教材)“hit rate”常作为评估指标出现(尤其在推荐/匹配系统中)。
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