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- W3204178525 abstract "Multi-source Domain Adaptation (MDA) aims to transfer predictive models from multiple, fully-labeled source domains to an unlabeled target domain. However, in many applications, relevant labeled source datasets may not be available, and collecting source labels can be as expensive as labeling the target data itself. In this paper, we investigate Multi-source Few-shot Domain Adaptation (MFDA): a new domain adaptation scenario with limited multi-source labels and unlabeled target data. As we show, existing methods often fail to learn discriminative features for both source and target domains in the MFDA setting. Therefore, we propose a novel framework, termed Multi-Source Few-shot Adaptation Network (MSFAN), which can be trained end-to-end in a non-adversarial manner. MSFAN operates by first using a type of prototypical, multi-domain, self-supervised learning to learn features that are not only domain-invariant but also class-discriminative. Second, MSFAN uses a small, labeled support set to enforce feature consistency and domain invariance across domains. Finally, prototypes from multiple sources are leveraged to learn better classifiers. Compared with state-of-the-art MDA methods, MSFAN improves the mean classification accuracy over different domain pairs on MFDA by 20.2%, 9.4%, and 16.2% on Office, Office-Home, and DomainNet, respectively." @default.
- W3204178525 created "2021-10-11" @default.
- W3204178525 creator A5025378091 @default.
- W3204178525 creator A5027804169 @default.
- W3204178525 creator A5047285420 @default.
- W3204178525 creator A5056412412 @default.
- W3204178525 creator A5078165161 @default.
- W3204178525 creator A5088660554 @default.
- W3204178525 date "2021-09-25" @default.
- W3204178525 modified "2023-09-27" @default.
- W3204178525 title "Multi-source Few-shot Domain Adaptation." @default.
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