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Despite the striking performance achieved by modern detectors when training and test data are sampled from the same or similar distribution, the generalization ability of detectors under unknown distribution shifts remains hardly studied.…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Xingxuan Zhang , Zekai Xu , Renzhe Xu , Jiashuo Liu , Peng Cui , Weitao Wan , Chong Sun , Chen Li

Recent advancements in dense out-of-distribution (OOD) detection have primarily focused on scenarios where the training and testing datasets share a similar domain, with the assumption that no domain shift exists between them. However, in…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Zhitong Gao , Shipeng Yan , Xuming He

Many neural network-based out-of-distribution (OoD) detection methods have been proposed. However, they require many training data for each target task. We propose a simple yet effective meta-learning method to detect OoD with small…

机器学习 · 统计学 2022-06-22 Tomoharu Iwata , Atsutoshi Kumagai

Domain generalization (DG) strives to address distribution shifts across diverse environments to enhance model's generalizability. Current DG approaches are confined to acquiring robust representations with continuous features, specifically…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Shaocong Long , Qianyu Zhou , Xikun Jiang , Chenhao Ying , Lizhuang Ma , Yuan Luo

Training a general-purpose time series foundation models with robust generalization capabilities across diverse applications from scratch is still an open challenge. Efforts are primarily focused on fusing cross-domain time series datasets…

机器学习 · 计算机科学 2024-12-13 Shengchao Chen , Guodong Long , Jing Jiang , Chengqi Zhang

Domain generalization (DG) aims to train a model to perform well in unseen domains under different distributions. This paper considers a more realistic yet more challenging scenario,namely Single Domain Generalization (Single-DG), where…

计算机视觉与模式识别 · 计算机科学 2022-12-05 Jiajin Zhang , Hanqing Chao , Amit Dhurandhar , Pin-Yu Chen , Ali Tajer , Yangyang Xu , Pingkun Yan

The goal of domain generalization is to learn from multiple source domains to generalize to unseen target domains under distribution discrepancy. Current state-of-the-art methods in this area are fully supervised, but for many real-world…

机器学习 · 计算机科学 2020-10-01 Hossein Sharifi-Noghabi , Hossein Asghari , Nazanin Mehrasa , Martin Ester

Domain adaption (DA) and domain generalization (DG) are two closely related methods which are both concerned with the task of assigning labels to an unlabeled data set. The only dissimilarity between these approaches is that DA can access…

计算机视觉与模式识别 · 计算机科学 2018-12-27 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

Current state-of-the-art video object segmentation models have achieved great success using supervised learning with massive labeled training datasets. However, these models are trained using a single source domain and evaluated using…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Islam Osman , Mohamed S. Shehata

Current state of the art methods in Domain Adaptation follow adversarial approaches, making training a challenge. Existing non-adversarial methods learn mappings between the source and target domains, to achieve reasonable performance.…

机器学习 · 计算机科学 2019-11-18 Rheeya Uppaal

Domain generalization aims at training machine learning models to perform robustly across different and unseen domains. Several recent methods use multiple datasets to train models to extract domain-invariant features, hoping to generalize…

机器学习 · 计算机科学 2021-05-19 Mattia Segu , Alessio Tonioni , Federico Tombari

The well known domain shift issue causes model performance to degrade when deployed to a new target domain with different statistics to training. Domain adaptation techniques alleviate this, but need some instances from the target domain to…

机器学习 · 计算机科学 2019-06-11 Yiying Li , Yongxin Yang , Wei Zhou , Timothy M. Hospedales

Domain shift remains a key challenge in deploying machine learning models to the real world. Unsupervised domain adaptation (UDA) aims to address this by minimising domain discrepancy during training, but the discrepancy estimates suffer…

机器学习 · 计算机科学 2026-05-07 Andrea Napoli , Paul White

Traditional machine learning paradigms are based on the assumption that both training and test data follow the same statistical pattern, which is mathematically referred to as Independent and Identically Distributed ($i.i.d.$). However, in…

机器学习 · 计算机科学 2023-07-28 Jiashuo Liu , Zheyan Shen , Yue He , Xingxuan Zhang , Renzhe Xu , Han Yu , Peng Cui

Domain adaptation for semantic segmentation has recently been actively studied to increase the generalization capabilities of deep learning models. The vast majority of the domain adaptation methods tackle single-source case, where the…

图像与视频处理 · 电气工程与系统科学 2020-04-16 Onur Tasar , Yuliya Tarabalka , Alain Giros , Pierre Alliez , Sébastien Clerc

Neural networks are known to be data hungry and domain sensitive, but it is nearly impossible to obtain large quantities of labeled data for every domain we are interested in. This necessitates the use of domain adaptation strategies. One…

计算与语言 · 计算机科学 2019-10-08 Zi-Yi Dou , Xinyi Wang , Junjie Hu , Graham Neubig

Although Domain Generalization (DG) problem has been fast-growing in the 2D image tasks, its exploration on 3D point cloud data is still insufficient and challenged by more complex and uncertain cross-domain variances with uneven…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Siyuan Huang , Bo Zhang , Botian Shi , Peng Gao , Yikang Li , Hongsheng Li

We propose a novel approach for domain generalisation (DG) leveraging risk distributions to characterise domains, thereby achieving domain invariance. In our findings, risk distributions effectively highlight differences between training…

机器学习 · 计算机科学 2023-10-31 Toan Nguyen , Kien Do , Bao Duong , Thin Nguyen

Domain generalization (DG), aiming at models able to work on multiple unseen domains, is a must-have characteristic of general artificial intelligence. DG based on single source domain training data is more challenging due to the lack of…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Qingyue Yang , Hongjing Niu , Pengfei Xia , Wei Zhang , Bin Li

In few-shot learning scenarios, the challenge is to generalize and perform well on new unseen examples when only very few labeled examples are available for each task. Model-agnostic meta-learning (MAML) has gained the popularity as one of…

机器学习 · 计算机科学 2021-10-19 Sungyong Baik , Janghoon Choi , Heewon Kim , Dohee Cho , Jaesik Min , Kyoung Mu Lee