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Deep learning-based solutions for semantic segmentation suffer from significant performance degradation when tested on data with different characteristics than what was used during the training. Adapting the models using annotated data from…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Xingchen Zhao , Niluthpol Chowdhury Mithun , Abhinav Rajvanshi , Han-Pang Chiu , Supun Samarasekera

Pseudo-labeling (PL) and Data Augmentation-based Consistency Training (DACT) are two approaches widely used in Semi-Supervised Learning (SSL) methods. These methods exhibit great power in many machine learning tasks by utilizing unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2021-09-15 Huixiang Luo , Hao Cheng , Fanxu Meng , Yuting Gao , Ke Li , Mengdan Zhang , Xing Sun

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

The success of automated medical image analysis depends on large-scale and expert-annotated training sets. Unsupervised domain adaptation (UDA) has been raised as a promising approach to alleviate the burden of labeled data collection.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Jianan Fan , Dongnan Liu , Hang Chang , Heng Huang , Mei Chen , Weidong Cai

Natural Language Understanding (NLU) is a vital component of dialogue systems, and its ability to detect Out-of-Domain (OOD) inputs is critical in practical applications, since the acceptance of the OOD input that is unsupported by the…

Computation and Language · Computer Science 2022-05-25 Yinhe Zheng , Guanyi Chen , Minlie Huang

Unsupervised domain adaption (UDA) has emerged as a popular solution to tackle the divergence between the labeled source and unlabeled target domains. Recently, some research efforts have been made to leverage large vision-language models,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Jinjing Zhu , Yucheng Chen , Lin Wang

Out-of-distribution (OOD) data poses serious challenges in deployed machine learning models as even subtle changes could incur significant performance drops. Being able to estimate a model's performance on test data is important in practice…

Machine Learning · Computer Science 2023-02-13 Yuzhe Lu , Zhenlin Wang , Runtian Zhai , Soheil Kolouri , Joseph Campbell , Katia Sycara

Combining multiple object detection datasets offers a path to improved generalisation but is hindered by inconsistencies in class semantics and bounding box annotations. Some methods to address this assume shared label taxonomies and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Mikhail Kennerley , Angelica Aviles-Rivero , Carola-Bibiane Schönlieb , Robby T. Tan

Deep models often fail to generalize well in test domains when the data distribution differs from that in the training domain. Among numerous approaches to address this Out-of-Distribution (OOD) generalization problem, there has been a…

Machine Learning · Computer Science 2022-10-14 Qixun Wang , Yifei Wang , Hong Zhu , Yisen Wang

Recent advances in label assignment in object detection mainly seek to independently define positive/negative training samples for each ground-truth (gt) object. In this paper, we innovatively revisit the label assignment from a global…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Zheng Ge , Songtao Liu , Zeming Li , Osamu Yoshie , Jian Sun

Recently, remarkable progress has been made in learning transferable representation across domains. Previous works in domain adaptation are majorly based on two techniques: domain-adversarial learning and self-training. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Minghao Chen , Shuai Zhao , Haifeng Liu , Deng Cai

Unsupervised sim-to-real domain adaptation (UDA) for semantic segmentation aims to improve the real-world test performance of a model trained on simulated data. It can save the cost of manually labeling data in real-world applications such…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Rui Gong , Qin Wang , Dengxin Dai , Luc Van Gool

Despite the progress made in domain adaptation, solving Unsupervised Domain Adaptation (UDA) problems with a general method under complex conditions caused by label shifts between domains remains a formidable task. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Jinjing Zhu , Feiyang Ye , Qiao Xiao , Pengxin Guo , Yu Zhang , Qiang Yang

Out-of-distribution (OOD) detection is essential in autonomous driving, to determine when learning-based components encounter unexpected inputs. Traditional detectors typically use encoder models with fixed settings, thus lacking effective…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Zhenjiang Mao , Dong-You Jhong , Ao Wang , Ivan Ruchkin

Mini-batch optimal transport (m-OT) has been widely used recently to deal with the memory issue of OT in large-scale applications. Despite their practicality, m-OT suffers from misspecified mappings, namely, mappings that are optimal on the…

Machine Learning · Statistics 2022-06-08 Khai Nguyen , Dang Nguyen , The-Anh Vu-Le , Tung Pham , Nhat Ho

We introduce the problem of domain adaptation under Open Set Label Shift (OSLS) where the label distribution can change arbitrarily and a new class may arrive during deployment, but the class-conditional distributions p(x|y) are…

Machine Learning · Computer Science 2022-10-18 Saurabh Garg , Sivaraman Balakrishnan , Zachary C. Lipton

Distribution shift between train (source) and test (target) datasets is a common problem encountered in machine learning applications. One approach to resolve this issue is to use the Unsupervised Domain Adaptation (UDA) technique that…

This work addresses the mismatch problem between the distribution of training data (source) and testing data (target), in the challenging context of dysarthric speech recognition. We focus on Speaker Adaptation (SA) in command speech…

Computation and Language · Computer Science 2023-09-13 Rosanna Turrisi , Leonardo Badino

Unsupervised open-set domain adaptation (UODA) is a realistic problem where unlabeled target data contain unknown classes. Prior methods rely on the coexistence of both source and target domain data to perform domain alignment, which…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Zeyu Feng , Chang Xu , Dacheng Tao

In this work we address multi-target domain adaptation (MTDA) in semantic segmentation, which consists in adapting a single model from an annotated source dataset to multiple unannotated target datasets that differ in their underlying data…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Yangsong Zhang , Subhankar Roy , Hongtao Lu , Elisa Ricci , Stéphane Lathuilière