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Transfer learning leverages knowledge from other domains and has been successful in many applications. Transfer learning methods rely on the overall similarity of the source and target domains. However, in some cases, it is impossible to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Yifu Zhang , Hongru Li , Shimeng Shi , Youqi Li , Jiansong Zhang

Transfer learning is essential when sufficient data comes from the source domain, with scarce labeled data from the target domain. We develop estimators that achieve minimax linear risk for linear regression problems under distribution…

Machine Learning · Computer Science 2021-06-24 Qi Lei , Wei Hu , Jason D. Lee

Feature-based transfer is one of the most effective methodologies for transfer learning. Existing studies usually assume that the learned new feature representation is \emph{domain-invariant}, and thus train a transfer model $\mathcal{M}$…

Machine Learning · Computer Science 2022-04-22 Pengfei Wei , Xinghua Qu , Yew Soon Ong , Zejun Ma

Transfer learning of prediction models has been extensively studied, while the corresponding policy learning approaches are rarely discussed. In this paper, we propose principled approaches for learning the optimal policy in the target…

Machine Learning · Computer Science 2025-05-20 Xueqing Liu , Qinwei Yang , Zhaoqing Tian , Ruocheng Guo , Peng Wu

Unsupervised domain adaptation aims to transfer knowledge from a labeled source domain to an unlabeled target domain. Previous methods focus on learning domain-invariant features to decrease the discrepancy between the feature distributions…

Machine Learning · Computer Science 2021-06-30 Yuntao Du , Yinghao Chen , Fengli Cui , Xiaowen Zhang , Chongjun Wang

Unsupervised domain adaptation without consuming annotation process for unlabeled target data attracts appealing interests in semantic segmentation. However, 1) existing methods neglect that not all semantic representations across domains…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Jiahua Dong , Yang Cong , Gan Sun , Yuyang Liu , Xiaowei Xu

Transfer learning is a valuable tool in deep learning as it allows propagating information from one "source dataset" to another "target dataset", especially in the case of a small number of training examples in the latter. Yet,…

Machine Learning · Computer Science 2023-06-13 Daniel Jakubovitz , David Uliel , Miguel Rodrigues , Raja Giryes

Transfer learning enhances prediction accuracy on a target distribution by leveraging data from a source distribution, demonstrating significant benefits in various applications. This paper introduces a novel dissimilarity measure that…

Machine Learning · Statistics 2024-12-12 Mitsuhiro Fujikawa , Yohei Akimoto , Jun Sakuma , Kazuto Fukuchi

Domain adaptation has been a fundamental technology for transferring knowledge from a source domain to a target domain. The key issue of domain adaptation is how to reduce the distribution discrepancy between two domains in a proper way…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Lei Tian , Yongqiang Tang , Liangchen Hu , Zhida Ren , Wensheng Zhang

Methods of transfer learning try to combine knowledge from several related tasks (or domains) to improve performance on a test task. Inspired by causal methodology, we relax the usual covariate shift assumption and assume that it holds true…

Machine Learning · Statistics 2018-09-25 Mateo Rojas-Carulla , Bernhard Schölkopf , Richard Turner , Jonas Peters

Partial domain adaptation aims to adapt knowledge from a larger and more diverse source domain to a smaller target domain with less number of classes, which has attracted appealing attention. Recent practice on domain adaptation manages to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Taotao Jing , Ming Shao , Zhengming Ding

Multi-task learning is effective for related applications, but its performance can deteriorate when the target sample size is small. Transfer learning can borrow strength from related studies; yet, many existing methods rely on restrictive…

Machine Learning · Computer Science 2026-04-23 Boxin Zhao , Mladen Kolar , Jinchi Lv

The emerging field semantic communication is driving the research of end-to-end data transmission. By utilizing the powerful representation ability of deep learning models, learned data transmission schemes have exhibited superior…

Information Theory · Computer Science 2023-05-25 Jincheng Dai , Sixian Wang , Ke Yang , Kailin Tan , Xiaoqi Qin , Zhongwei Si , Kai Niu , Ping Zhang

Transfer learning aims at improving the performance of target learners on target domains by transferring the knowledge contained in different but related source domains. In this way, the dependence on a large number of target domain data…

Machine Learning · Computer Science 2020-06-24 Fuzhen Zhuang , Zhiyuan Qi , Keyu Duan , Dongbo Xi , Yongchun Zhu , Hengshu Zhu , Hui Xiong , Qing He

Transfer reinforcement learning aims to derive a near-optimal policy for a target environment with limited data by leveraging abundant data from related source domains. However, it faces two key challenges: the lack of performance…

Machine Learning · Computer Science 2025-05-30 Chi Zhang , Ziying Jia , George K. Atia , Sihong He , Yue Wang

Recommender systems based on collaborative filtering play a vital role in many E-commerce applications as they guide the user in finding their items of interest based on the user's past transactions and feedback of other similar customers.…

Information Retrieval · Computer Science 2022-03-29 Sowmini Devi Veeramachaneni , Arun K Pujari , Vineet Padmanabhan , Vikas Kumar

In this paper, we propose a novel learning framework for the problem of domain transfer learning. We map the data of two domains to one single common space, and learn a classifier in this common space. Then we adapt the common classifier to…

Machine Learning · Computer Science 2016-08-17 Ru-Ze Liang , Wei Xie , Weizhi Li , Hongqi Wang , Jim Jing-Yan Wang , Lisa Taylor

Classical Domain Adaptation methods acquire transferability by regularizing the overall distributional discrepancies between features in the source domain (labeled) and features in the target domain (unlabeled). They often do not…

Machine Learning · Computer Science 2023-06-01 Shumin Ma , Zhiri Yuan , Qi Wu , Yiyan Huang , Xixu Hu , Cheuk Hang Leung , Dongdong Wang , Zhixiang Huang

Domain adaptation aims to leverage the supervision signal of source domain to obtain an accurate model for target domain, where the labels are not available. To leverage and adapt the label information from source domain, most existing…

Machine Learning · Computer Science 2019-11-22 Yuxuan Song , Lantao Yu , Zhangjie Cao , Zhiming Zhou , Jian Shen , Shuo Shao , Weinan Zhang , Yong Yu

How to effectively learn from unlabeled data from the target domain is crucial for domain adaptation, as it helps reduce the large performance gap due to domain shift or distribution change. In this paper, we propose an easy-to-implement…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Chaofan Tao , Fengmao Lv , Lixin Duan , Min Wu