V2EX unlabeled data

Unlabeled Data

释义 Definition

unlabeled data 指“无标签数据/未标注数据”:在机器学习中,只有输入数据(如文本、图片、特征),但没有对应的正确答案或类别标签的数据。常见于无监督学习、半监督学习与自监督学习等场景。(该术语也常写作 unlabelled data 英式拼写。)

发音 Pronunciation (IPA)

/nlebld det/(亦常见 /nlebld dt/)

例句 Examples

Unlabeled data is easy to collect.
无标签数据很容易收集到。

We used unlabeled data to pretrain the model, then fine-tuned it with a small labeled dataset.
我们用无标签数据对模型进行预训练,然后用一小部分有标签数据进行微调。

词源 Etymology

un-(否定前缀,表示“没有/不”)+ labeled(被贴标签的、被标注的)+ data(数据)。字面意思就是“没有被标注的数据”。随着机器学习发展,该短语在学术与工业界被固定用来指代“缺少监督信号的数据”。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Deep Learning(Ian Goodfellow, Yoshua Bengio, Aaron Courville)讨论利用无标签数据进行表征学习与预训练的相关思想。
  • Pattern Recognition and Machine Learning(Christopher M. Bishop)涉及无监督学习背景下对无标签数据的建模与聚类等内容。
  • Hands-On Machine Learning with Scikit-Learn, Keras & TensorFlow(Aurélien Géron)在实践章节中常以“unlabeled data”描述真实数据收集与训练流程。
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