V2EX few-shot

Few-shot

Definition|定义

Few-shot:在机器学习/自然语言处理里指“少样本(学习/推理)”,即模型只需要很少的示例(例如 110 个)就能学会任务或在提示中举例后完成任务。常见于 few-shot learning(少样本学习)与 few-shot prompting(少样本提示)。

Pronunciation|发音

/fju t/

Examples|例句

The model can do few-shot classification with only five labeled examples.
这个模型只用五个带标签的例子就能进行少样本分类。

In a few-shot setting, performance often depends on how representative the examples are and how the prompt is written.
在少样本场景下,效果往往取决于例子是否具有代表性以及提示词的写法。

Etymology|词源

few(少的)+ shot(一次尝试/一次“出手”)。这里的 shot 不是“射击”本义,而是英语里常见的引申用法,表示“一次尝试、一次机会”(如 give it a shot)。因此 few-shot 字面意思可理解为“用很少次尝试/很少个例子”。

Related Words|相关词

Literary Works|文学作品

  • Language Models are Few-Shot Learners(Brown et al., 2020)
  • Meta-Learning: A Survey(Hospedales et al., 2021)
  • Pattern Recognition and Machine Learning(Christopher M. Bishop,相关章节常讨论小样本/数据稀缺问题)
  • Deep Learning(Ian Goodfellow, Yoshua Bengio, Aaron Courville;涉及迁移学习与数据效率背景下的相关概念)
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