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Detecting concept drift in high-speed data streams remains challenging, particularly when models must operate on unlabeled data and avoid false alarms caused by benign shifts. While disagreement-based uncertainty has shown promise in neural…

Machine Learning · Computer Science 2026-05-14 Lara Sá Neves , Afonso Lourenço , Lizy K. John , Goreti Marreiros

Domain adaptation for semantic segmentation aims to improve the model performance in the presence of a distribution shift between source and target domain. Leveraging the supervision from auxiliary tasks~(such as depth estimation) has the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Qin Wang , Dengxin Dai , Lukas Hoyer , Luc Van Gool , Olga Fink

Fine-Grained Domain Generalization (FGDG) presents greater challenges than conventional domain generalization due to the subtle inter-class differences and relatively pronounced intra-class variations inherent in fine-grained recognition…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Zhen Wang , Jiaojiao Zhao , Qilong Wang , Yongfeng Dong , Wenlong Yu

Semantic Shift Detection (SSD) is the task of identifying, interpreting, and assessing the possible change over time in the meanings of a target word. Traditionally, SSD has been addressed by linguists and social scientists through manual…

Computation and Language · Computer Science 2024-06-12 Stefano Montanelli , Francesco Periti

The basic underlying assumption of machine learning (ML) models is that the training and test data are sampled from the same distribution. However, in daily practice, this assumption is often broken, i.e. the distribution of the test data…

Computation and Language · Computer Science 2026-01-16 Adriana Valentina Costache , Silviu Florin Gheorghe , Eduard Gabriel Poesina , Paul Irofti , Radu Tudor Ionescu

Concept drift is formally defined as the change in joint distribution of a set of input variables X and a target variable y. The two types of drift that are extensively studied are real drift and virtual drift where the former is the change…

Machine Learning · Computer Science 2019-11-12 Chang How Tan , Vincent CS Lee , Mahsa Salehi

Generalized Category Discovery (GCD) aims to categorize unlabelled instances from both known and unknown classes by transferring knowledge from labelled data of known classes. Existing methods assume all data comes from a single domain, yet…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Hongjun Wang , Po Hu , Kai Han

Traditional semi-supervised learning (SSL) assumes that the feature distributions of labeled and unlabeled data are consistent which rarely holds in realistic scenarios. In this paper, we propose a novel SSL setting, where unlabeled samples…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Jiachen Liang , Ruibing Hou , Hong Chang , Bingpeng Ma , Shiguang Shan , Xilin Chen

We study the domain adaptation problem with label shift in this work. Under the label shift context, the marginal distribution of the label varies across the training and testing datasets, while the conditional distribution of features…

Machine Learning · Statistics 2023-05-31 Qinglong Tian , Xin Zhang , Jiwei Zhao

Predicting structured outputs such as semantic segmentation relies on expensive per-pixel annotations to learn supervised models like convolutional neural networks. However, models trained on one data domain may not generalize well to other…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Yi-Hsuan Tsai , Kihyuk Sohn , Samuel Schulter , Manmohan Chandraker

The similarity of feature representations plays a pivotal role in the success of problems related to domain adaptation. Feature similarity includes both the invariance of marginal distributions and the closeness of conditional distributions…

Machine Learning · Computer Science 2022-01-10 Ammar Shaker , Shujian Yu , Daniel Oñoro-Rubio

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…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Zhitong Gao , Shipeng Yan , Xuming He

Anomaly and failure detection methods are crucial in identifying deviations from normal system operational conditions, which allows for actions to be taken in advance, usually preventing more serious damages. Long-lasting deviations…

Machine Learning · Computer Science 2026-03-20 Natalia Wojak-Strzelecka , Szymon Bobek , Grzegorz J. Nalepa , Jerzy Stefanowski

Large-scale labeled training datasets have enabled deep neural networks to excel across a wide range of benchmark vision tasks. However, in many applications, it is prohibitively expensive and time-consuming to obtain large quantities of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Sicheng Zhao , Xiangyu Yue , Shanghang Zhang , Bo Li , Han Zhao , Bichen Wu , Ravi Krishna , Joseph E. Gonzalez , Alberto L. Sangiovanni-Vincentelli , Sanjit A. Seshia , Kurt Keutzer

When machine learning models are deployed on a test distribution different from the training distribution, they can perform poorly, but overestimate their performance. In this work, we aim to better estimate a model's performance under…

Machine Learning · Computer Science 2020-07-08 Ching-Yao Chuang , Antonio Torralba , Stefanie Jegelka

The trade-off between accuracy and interpretability has long been a challenge in machine learning (ML). This tension is particularly significant for emerging interpretable-by-design methods, which aim to redesign ML algorithms for…

Machine Learning · Computer Science 2025-05-28 Geyu Liang , Senne Michielssen , Salar Fattahi

Changes in the data distribution at test time can have deleterious effects on the performance of predictive models $p(y|x)$. We consider situations where there are additional meta-data labels (such as group labels), denoted by $z$, that can…

Machine Learning · Statistics 2023-11-30 Qingyao Sun , Kevin Murphy , Sayna Ebrahimi , Alexander D'Amour

Supervised learning with large scale labeled datasets and deep layered models has made a paradigm shift in diverse areas in learning and recognition. However, this approach still suffers generalization issues under the presence of a domain…

Machine Learning · Statistics 2016-03-28 Ozan Sener , Hyun Oh Song , Ashutosh Saxena , Silvio Savarese

Developing predictive models that perform reliably across diverse patient populations and heterogeneous environments is a core aim of medical research. However, generalization is only possible if the learned model is robust to statistical…

In open-world scenarios, where both novel classes and domains may exist, an ideal segmentation model should detect anomaly classes for safety and generalize to new domains. However, existing methods often struggle to distinguish between…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Zhitong Gao , Bingnan Li , Mathieu Salzmann , Xuming He