通过多视图一致性提升半监督域适应性能,减少标签偏差。
A Multi-View Consistency Framework with Semi-Supervised Domain Adaptation
- 设计双视图训练框架,利用增强数据和去偏策略修正分类概率。
- 引入伪负样本与跨域亲和力学习,在DomainNet和Office-Home上超越现有方法。
- 适合需要低成本标注、高泛化能力的工业场景应用。
半监督域适应(SSDA)利用全标注源域知识对部分标注目标域数据进行分类。由于目标域标注样本有限,特征空间中类别间可能存在固有相似性,导致模型即使在平衡数据集上训练仍产生偏差预测。为此,本文提出一种多视图一致性框架,包含两个用于强增强数据训练的视图:一是根据模型预测性能调整类别级预测概率的去偏策略;二是利用模型预测生成的伪负样本。此外,引入跨域亲和力学习,以对齐不同域中同类别特征,从而提升整体性能。实验表明,该方法在标准域适应数据集DomainNet和Office-Home上优于现有方法。结合无监督域适应与半监督学习,可显著提升模型适应性,降低标注成本,推动工业应用落地。
原文摘要 · Abstract (English)
Semi-Supervised Domain Adaptation (SSDA) leverages knowledge from a fully labeled source domain to classify data in a partially labeled target domain. Due to the limited number of labeled samples in the target domain, there can be intrinsic similarity of classes in the feature space, which may result in biased predictions, even when the model is trained on a balanced dataset. To overcome this limitation, we introduce a multi-view consistency framework, which includes two views for training strongly augmented data. One is a debiasing strategy for correcting class-wise prediction probabilities according to the prediction performance of the model. The other involves leveraging pseudo-negative labels derived from the model predictions. Furthermore, we introduce a cross-domain affinity learning aimed at aligning features of the same class across different domains, thereby enhancing overall performance. Experimental results demonstrate that our method outperforms the competing methods on two standard domain adaptation datasets, DomainNet and Office-Home. Combining unsupervised domain adaptation and semi-supervised learning offers indispensable contributions to the industrial sector by enhancing model adaptability, reducing annotation costs, and improving performance.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。