Papers › Improve Unsupervised Domain Adaptation with Mixup Training

Improve Unsupervised Domain Adaptation with Mixup Training

3 Jan 2020arXiv:2001.00677archive 2025-07-28

Shen Yan, Huan Song, Nanxiang Li, Lincan Zou, Liu Ren

Unsupervised domain adaptation studies the problem of utilizing a relevant source domain with abundant labels to build predictive modeling for an unannotated target domain. Recent work observe that the popular adversarial approach of learning domain-invariant features is insufficient to achieve desirable target domain performance and thus introduce additional training constraints, e.g. cluster assumption. However, these approaches impose the constraints on source and target domains individually, ignoring the important interplay between them. In this work, we propose to enforce training constraints across domains using mixup formulation to directly address the generalization performance for target data. In order to tackle potentially huge domain discrepancy, we further propose a feature-level consistency regularizer to facilitate the inter-domain constraint. When adding intra-domain mixup and domain adversarial learning, our general framework significantly improves state-of-the-art performance on several important tasks from both image classification and human activity recognition.

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Code

facebookresearch/DomainBed mentioned on GitHubpytorch report

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Tasks

Activity RecognitionDomain AdaptationDomain GeneralizationHuman Activity RecognitionImage ClassificationUnsupervised Domain Adaptationimage-classification

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Domain Generalization PACS Mixup (Resnet-50, DomainBed) Average Accuracy 84.6 #59 of 133 Archive leaderboard report

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Methods

Mixup

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