V2EX target domain

Target Domain

释义 Definition

target domain(目标域/目标领域):在机器学习、迁移学习或领域自适应等语境中,指模型最终要应用到的那一类数据环境或任务分布(通常与训练数据所在的 source domain 有差异)。在更一般的技术语境中,也可指“目标系统/目标场景所属的领域范围”。

发音 Pronunciation (IPA)

/trt domen/

例句 Examples

The model performs well in the target domain.
这个模型在目标域中表现良好。

Although the classifier was trained on news articles, it was adapted to the target domain of medical reports by using unlabeled hospital data.
尽管该分类器在新闻文章上训练,但它通过使用未标注的医院数据,被适配到以医疗报告为目标域的场景中。

词源 Etymology

target 源自古法语 targette(小盾牌,后引申为“目标、靶子”);domain 源自拉丁语 dominium(所有权、统治范围),后来表示“范围、领域”。组合成 target domain,字面义为“目标所在的领域/范围”,在计算机科学中进一步固定为“最终应用的数据分布或任务环境”。

相关词 Related Words

文献与著作 Literary / Notable Works

  • Deep Learning(Ian Goodfellow, Yoshua Bengio, Aaron Courville)在迁移与泛化相关讨论中常涉及“源域/目标域”的表述
  • Pattern Recognition and Machine Learning(Christopher M. Bishop)概率建模与分布差异的语境下常见“domain”及相关用法
  • Domain Adaptation in Computer Vision Applications(Gabriela Csurka 编)领域自适应专题书籍中频繁使用 target domain
  • 论文:Pan & Yang, “A Survey on Transfer Learning”迁移学习综述中系统使用 source domain / target domain 术语
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