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In this chapter, we present CORrelation ALignment (CORAL), a simple yet effective method for unsupervised domain adaptation. CORAL minimizes domain shift by aligning the second-order statistics of source and target distributions, without…

计算机视觉与模式识别 · 计算机科学 2016-12-07 Baochen Sun , Jiashi Feng , Kate Saenko

Large Vision-Language Models like CLIP have become a powerful foundation for Unsupervised Domain Adaptation due to their strong zero-shot generalization. State-of-the-art methods typically leverage CLIP to generate pseudo-labels for the…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Haoran Chen , Zexiao Wang , Haidong Cao , Zuxuan Wu , Yu-Gang Jiang

We consider the cross-domain sentiment classification problem, where a sentiment classifier is to be learned from a source domain and to be generalized to a target domain. Our approach explicitly minimizes the distance between the source…

计算与语言 · 计算机科学 2018-09-05 Ruidan He , Wee Sun Lee , Hwee Tou Ng , Daniel Dahlmeier

Unsupervised domain adaptation (UDA) provides a strategy for improving machine learning performance in data-rich (target) domains where ground truth labels are inaccessible but can be found in related (source) domains. In cases where…

机器学习 · 计算机科学 2023-07-24 Garrett Wilson , Janardhan Rao Doppa , Diane J. Cook

Typical adversarial-training-based unsupervised domain adaptation methods are vulnerable when the source and target datasets are highly-complex or exhibit a large discrepancy between their data distributions. Recently, several…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Guanyu Cai , Lianghua He , Mengchu Zhou , Hesham Alhumade , Die Hu

Applying an object detector, which is neither trained nor fine-tuned on data close to the final application, often leads to a substantial performance drop. In order to overcome this problem, it is necessary to consider a shift between…

计算机视觉与模式识别 · 计算机科学 2020-05-27 Alexey Abramov , Christopher Bayer , Claudio Heller

Current unsupervised domain adaptation methods can address many types of distribution shift, but they assume data from the source domain is freely available. As the use of pre-trained models becomes more prevalent, it is reasonable to…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Roshni Sahoo , Divya Shanmugam , John Guttag

Feature alignment between domains is one of the mainstream methods for Unsupervised Domain Adaptation (UDA) semantic segmentation. Existing feature alignment methods for semantic segmentation learn domain-invariant features by adversarial…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Shuang Wang , Dong Zhao , Yi Li , Chi Zhang , Yuwei Guo , Qi Zang , Biao Hou , Licheng Jiao

Unsupervised Domain adaptation (UDA) attempts to recognize the unlabeled target samples by building a learning model from a differently-distributed labeled source domain. Conventional UDA concentrates on extracting domain-invariant features…

计算机视觉与模式识别 · 计算机科学 2020-08-28 Taotao Jing , Zhengming Ding

We address the problem of face anti-spoofing which aims to make the face verification systems robust in the real world settings. The context of detecting live vs. spoofed face images may differ significantly in the target domain, when…

计算机视觉与模式识别 · 计算机科学 2021-05-19 Ankush Panwar , Pratyush Singh , Suman Saha , Danda Pani Paudel , Luc Van Gool

Most unsupervised domain adaptation (UDA) methods assume that labeled source images are available during model adaptation. However, this assumption is often infeasible owing to confidentiality issues or memory constraints on mobile devices.…

计算机视觉与模式识别 · 计算机科学 2023-03-17 JoonHo Lee , Gyemin Lee

We propose a simple but effective source-free domain adaptation (SFDA) method. Treating SFDA as an unsupervised clustering problem and following the intuition that local neighbors in feature space should have more similar predictions than…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Shiqi Yang , Yaxing Wang , Kai Wang , Shangling Jui , Joost van de Weijer

By leveraging data from a fully labeled source domain, unsupervised domain adaptation (UDA) improves classification performance on an unlabeled target domain through explicit discrepancy minimization of data distribution or adversarial…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Shengjia Zhang , Tiancheng Lin , Yi Xu

The standard closed-set domain adaptation approaches seek to mitigate distribution discrepancies between two domains under the constraint of both sharing identical label sets. However, in realistic scenarios, finding an optimal source…

机器学习 · 计算机科学 2022-12-06 Sandipan Choudhuri , Suli Adeniye , Arunabha Sen , Hemanth Venkateswara

Source-free domain adaptation (SFDA) aims to transfer knowledge learned from a source domain to an unlabeled target domain, where the source data is unavailable during adaptation. Existing approaches for SFDA focus on self-training usually…

计算机视觉与模式识别 · 计算机科学 2022-12-08 Idit Diamant , Roy H. Jennings , Oranit Dror , Hai Victor Habi , Arnon Netzer

Current methods of blended targets domain adaptation (BTDA) usually infer or consider domain label information but underemphasize hybrid categorical feature structures of targets, which yields limited performance, especially under the label…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Pengcheng Xu , Boyu Wang , Charles Ling

Self-Supervised Learning (SSL) is a new paradigm for learning discriminative representations without labelled data and has reached comparable or even state-of-the-art results in comparison to supervised counterparts. Contrastive Learning…

计算机视觉与模式识别 · 计算机科学 2022-08-05 Shohreh Deldari , Hao Xue , Aaqib Saeed , Daniel V. Smith , Flora D. Salim

Slot Attention (SA) with pretrained diffusion models has recently shown promise for object-centric learning (OCL), but suffers from slot entanglement and weak alignment between object slots and image content. We propose Contrastive…

计算机视觉与模式识别 · 计算机科学 2026-02-20 Bac Nguyen , Yuhta Takida , Naoki Murata , Chieh-Hsin Lai , Toshimitsu Uesaka , Stefano Ermon , Yuki Mitsufuji

Unsupervised domain adaptive semantic segmentation (UDA-SS) aims to train a model on the source domain data (e.g., synthetic) and adapt the model to predict target domain data (e.g., real-world) without accessing target annotation data.…

计算机视觉与模式识别 · 计算机科学 2024-10-29 Md. Al-Masrur Khan , Zheng Chen , Lantao Liu

We present a novel approach to perform the unsupervised domain adaptation for object detection through forward-backward cyclic (FBC) training. Recent adversarial training based domain adaptation methods have shown their effectiveness on…

计算机视觉与模式识别 · 计算机科学 2020-02-04 Siqi Yang , Lin Wu , Arnold Wiliem , Brian C. Lovell