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In machine learning, if the training data is an unbiased sample of an underlying distribution, then the learned classification function will make accurate predictions for new samples. However, if the training data is not an unbiased sample,…

Machine Learning · Computer Science 2019-01-15 Wouter M. Kouw , Marco Loog

The empirical fact that classifiers, trained on given data collections, perform poorly when tested on data acquired in different settings is theoretically explained in domain adaptation through a shift among distributions of the source and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-28 Fabio Maria Carlucci , Lorenzo Porzi , Barbara Caputo , Elisa Ricci , Samuel Rota Bulò

Despite their recent success, deep neural networks continue to perform poorly when they encounter distribution shifts at test time. Many recently proposed approaches try to counter this by aligning the model to the new distribution prior to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Samarth Sinha , Peter Gehler , Francesco Locatello , Bernt Schiele

Large language models (LLMs) have shown great potential across various industries due to their remarkable ability to generalize through instruction tuning. However, the limited availability of domain-specific data significantly hampers…

Computation and Language · Computer Science 2025-02-18 Yang Zhao , Li Du , Xiao Ding , Yangou Ouyang , Hepeng Wang , Kai Xiong , Jinglong Gao , Zhouhao Sun , Dongliang Xu , Yang Qing , Dongchen Li , Bing Qin , Ting Liu

Recent literature has demonstrated the potential of multilingual Neural Machine Translation (mNMT) models. However, the most efficient models are not well suited to specialized industries. In these cases, internal data is scarce and…

Computation and Language · Computer Science 2022-10-28 Mathieu Grosso , Pirashanth Ratnamogan , Alexis Mathey , William Vanhuffel , Michael Fotso Fotso

Aligning large language models (LLMs) to human preferences is challenging in domains where preference data is unavailable. We address the problem of learning reward models for such target domains by leveraging feedback collected from…

Machine Learning · Computer Science 2025-01-03 David Wu , Sanjiban Choudhury

Getting deep convolutional neural networks to perform well requires a large amount of training data. When the available labelled data is small, it is often beneficial to use transfer learning to leverage a related larger dataset (source) in…

Machine Learning · Computer Science 2021-10-26 Lukas Hedegaard Morsing , Omar Ali Sheikh-Omar , Alexandros Iosifidis

Machine learning algorithms have achieved remarkable success across various disciplines, use cases and applications, under the prevailing assumption that training and test samples are drawn from the same distribution. Consequently, these…

Machine Learning · Computer Science 2024-11-07 Zehao Xiao , Cees G. M. Snoek

Given a model trained on source data, Test-Time Adaptation (TTA) enables adaptation and inference in test data streams with domain shifts from the source. Current methods predominantly optimize the model for each incoming test data batch…

Machine Learning · Computer Science 2024-07-18 Ziqiang Wang , Zhixiang Chi , Yanan Wu , Li Gu , Zhi Liu , Konstantinos Plataniotis , Yang Wang

We study a new highly-practical problem setting that enables resource-constrained edge devices to adapt a pre-trained model to their local data distributions. Recognizing that device's data are likely to come from multiple latent domains…

Machine Learning · Computer Science 2024-02-02 Ondrej Bohdal , Da Li , Shell Xu Hu , Timothy Hospedales

Deep Metric Learning (DML) plays an important role in modern computer vision research, where we learn a distance metric for a set of image representations. Recent DML techniques utilize the proxy to interact with the corresponding image…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Li Ren , Chen Chen , Liqiang Wang , Kien Hua

Domain adaptation is an important task to enable learning when labels are scarce. While most works focus only on the image modality, there are many important multi-modal datasets. In order to leverage multi-modality for domain adaptation,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Maximilian Jaritz , Tuan-Hung Vu , Raoul de Charette , Émilie Wirbel , Patrick Pérez

Domain adaptation addresses the problem created when training data is generated by a so-called source distribution, but test data is generated by a significantly different target distribution. In this work, we present approximate label…

Machine Learning · Computer Science 2017-03-03 Jordan T. Ash , Robert E. Schapire , Barbara E. Engelhardt

As a prominent challenge in addressing real-world issues within a dynamic environment, label shift, which refers to the learning setting where the source (training) and target (testing) label distributions do not match, has recently…

Machine Learning · Computer Science 2024-11-06 Ruidong Fan , Xiao Ouyang , Hong Tao , Yuhua Qian , Chenping Hou

Existing pretraining data mixing methods for large language models (LLMs) typically follow a domain-wise methodology, a top-down process that first determines domain weights and then performs uniform data sampling across each domain.…

Computation and Language · Computer Science 2025-03-04 Xiangyu Xi , Deyang Kong , Jian Yang , Jiawei Yang , Zhengyu Chen , Wei Wang , Jingang Wang , Xunliang Cai , Shikun Zhang , Wei Ye

As of today, object categorization algorithms are not able to achieve the level of robustness and generality necessary to work reliably in the real world. Even the most powerful convolutional neural network we can train fails to perform…

Computer Vision and Pattern Recognition · Computer Science 2015-03-27 Faraz Saeedan , Barbara Caputo

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

In this work, we propose to tackle the problem of domain generalization in the context of \textit{insufficient samples}. Instead of extracting latent feature embeddings based on deterministic models, we propose to learn a domain-invariant…

Machine Learning · Computer Science 2024-02-12 Kecheng Chen , Elena Gal , Hong Yan , Haoliang Li

Unsupervised domain adaptation aims to transfer the classifier learned from the source domain to the target domain in an unsupervised manner. With the help of target pseudo-labels, aligning class-level distributions and learning the…

Machine Learning · Computer Science 2019-06-11 Dong-Dong Chen , Yisen Wang , Jinfeng Yi , Zaiyi Chen , Zhi-Hua Zhou

Few-shot learning aims to recognize novel queries with limited support samples by learning from base knowledge. Recent progress in this setting assumes that the base knowledge and novel query samples are distributed in the same domains,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Yifan Zhao , Tong Zhang , Jia Li , Yonghong Tian