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Transfer learning approaches in reinforcement learning aim to assist agents in learning their target domains by leveraging the knowledge learned from other agents that have been trained on similar source domains. For example, recent…

机器学习 · 计算机科学 2022-04-25 Nathan Beck , Abhiramon Rajasekharan , Hieu Tran

We propose a learning problem involving adapting a pre-trained source model to the target domain for classifying all classes that appeared in the source data, using target data that covers only a partial label space. This problem is…

Using additional training data is known to improve the results, especially for medical image 3D segmentation where there is a lack of training material and the model needs to generalize well from few available data. However, the new data…

计算机视觉与模式识别 · 计算机科学 2024-03-13 George Stoica , Mihaela Breaban , Vlad Barbu

Domain shift refers to the difference in the data distribution of two datasets, normally between the training set and the test set for machine learning algorithms. Domain shift is a serious problem for generalization of machine learning…

图像与视频处理 · 电气工程与系统科学 2021-09-29 Devran Ugurlu , Esther Puyol-Anton , Bram Ruijsink , Alistair Young , Ines Machado , Kerstin Hammernik , Andrew P. King , Julia A. Schnabel

Surrogate models are frequently employed as efficient substitutes for the costly execution of real-world processes. However, constructing a high-quality surrogate model often demands extensive data acquisition. A solution to this issue is…

机器学习 · 计算机科学 2025-05-05 Shuaiqun Pan , Diederick Vermetten , Manuel López-Ibáñez , Thomas Bäck , Hao Wang

A basic assumption of statistical learning theory is that train and test data are drawn from the same underlying distribution. Unfortunately, this assumption doesn't hold in many applications. Instead, ample labeled data might exist in a…

计算机视觉与模式识别 · 计算机科学 2012-11-21 Oscar Beijbom

Recently, transfer learning and self-supervised learning have gained significant attention within the medical field due to their ability to mitigate the challenges posed by limited data availability, improve model generalisation, and reduce…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Zehui Zhao , Laith Alzubaidi , Jinglan Zhang , Ye Duan , Usman Naseem , Yuantong Gu

Transfer learning seeks to improve the generalization performance of a target task by exploiting the knowledge learned from a related source task. Central questions include deciding what information one should transfer and when transfer can…

机器学习 · 计算机科学 2021-04-07 Oussama Dhifallah , Yue M. Lu

The ability to transfer adversarial attacks from one model (the surrogate) to another model (the victim) has been an issue of concern within the machine learning (ML) community. The ability to successfully evade unseen models represents an…

机器学习 · 计算机科学 2021-09-28 Luke E. Richards , André Nguyen , Ryan Capps , Steven Forsythe , Cynthia Matuszek , Edward Raff

Domain adaptation is transfer learning which aims to generalize a learning model across training and testing data with different distributions. Most previous research tackle this problem in seeking a shared feature representation between…

机器学习 · 计算机科学 2017-04-17 Lingkun Luo , Xiaofang Wang , Shiqiang Hu , Chao Wang , Yuxing Tang , Liming Chen

This paper addresses unsupervised domain adaptation, the setting where labeled training data is available on a source domain, but the goal is to have good performance on a target domain with only unlabeled data. Like much of previous work,…

机器学习 · 计算机科学 2019-10-01 Yu Sun , Eric Tzeng , Trevor Darrell , Alexei A. Efros

Most domain adaptation methods focus on single-source-single-target adaptation settings. Multi-target domain adaptation is a powerful extension in which a single classifier is learned for multiple unlabeled target domains. To build a…

计算机视觉与模式识别 · 计算机科学 2022-02-02 Sudipan Saha , Shan Zhao , Nasrullah Sheikh , Xiao Xiang Zhu

Diffusion models are often trained in low-dimensional latent spaces, which are then reused for related but shifted datasets. In this work, we study when such latent reuse remains reliable under distribution shift. We consider a…

机器学习 · 统计学 2026-05-14 Yifeng Yu , Lu Yu

Due to the ability of deep neural nets to learn rich representations, recent advances in unsupervised domain adaptation have focused on learning domain-invariant features that achieve a small error on the source domain. The hope is that the…

机器学习 · 计算机科学 2019-05-31 Han Zhao , Remi Tachet des Combes , Kun Zhang , Geoffrey J. Gordon

Unsupervised domain transfer is the task of transferring or translating samples from a source distribution to a different target distribution. Current solutions unsupervised domain transfer often operate on data on which the modes of the…

机器学习 · 计算机科学 2019-05-31 Mikołaj Bińkowski , R Devon Hjelm , Aaron Courville

Current state-of-the-art (SOTA) methods in visual object tracking often require extensive computational resources and vast amounts of training data, leading to a risk of overfitting. This study introduces a more efficient training strategy…

计算机视觉与模式识别 · 计算机科学 2023-09-07 Qingmao Wei , Bi Zeng , Guotian Zeng

Generalizability of deep learning models may be severely affected by the difference in the distributions of the train (source domain) and the test (target domain) sets, e.g., when the sets are produced by different hardware. As a…

图像与视频处理 · 电气工程与系统科学 2022-08-02 Ivan Zakazov , Vladimir Shaposhnikov , Iaroslav Bespalov , Dmitry V. Dylov

In practice, the data distribution at test time often differs, to a smaller or larger extent, from that of the original training data. Consequentially, the so-called source classifier, trained on the available labelled data, deteriorates on…

机器学习 · 统计学 2021-06-18 Wouter M. Kouw , Marco Loog

Domain adaptation aims to transfer knowledge of labeled instances obtained from a source domain to a target domain to fill the gap between the domains. Most domain adaptation methods assume that the source and target domains have the same…

机器学习 · 计算机科学 2022-09-13 Toshimitsu Aritake , Hideitsu Hino

Although the performance of person Re-Identification (ReID) has been significantly boosted, many challenging issues in real scenarios have not been fully investigated, e.g., the complex scenes and lighting variations, viewpoint and pose…

计算机视觉与模式识别 · 计算机科学 2018-06-26 Longhui Wei , Shiliang Zhang , Wen Gao , Qi Tian