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Self-training and contrastive learning have emerged as leading techniques for incorporating unlabeled data, both under distribution shift (unsupervised domain adaptation) and when it is absent (semi-supervised learning). However, despite…

The ability to evolve is fundamental for any valuable autonomous agent whose knowledge cannot remain limited to that injected by the manufacturer. Consider for example a home assistant robot: it should be able to incrementally learn new…

计算机视觉与模式识别 · 计算机科学 2022-09-05 Francesco Cappio Borlino , Silvia Bucci , Tatiana Tommasi

Radio Frequency Fingerprint Identification (RFFI), which exploits non-ideal hardware-induced unique distortion resident in the transmit signals to identify an emitter, is emerging as a means to enhance the security of communication systems.…

信号处理 · 电气工程与系统科学 2024-04-15 Liu Yang , Qiang Li , Xiaoyang Ren , Yi Fang , Shafei Wang

Unsupervised domain adaptation, which involves transferring knowledge from a label-rich source domain to an unlabeled target domain, can be used to substantially reduce annotation costs in the field of object detection. In this study, we…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Kazuma Fujii , Hiroshi Kera , Kazuhiko Kawamoto

Radio frequency fingerprint identification (RFFI) is an emerging device authentication technique, which exploits the hardware characteristics of the RF front-end as device identifiers. RFFI is implemented in the wireless receiver and acts…

信号处理 · 电气工程与系统科学 2022-07-08 Guanxiong Shen , Junqing Zhang , Alan Marshall , Roger Woods , Joseph Cavallaro , Liquan Chen

Unsupervised domain adaptation uses source data from different distributions to solve the problem of classifying data from unlabeled target domains. However, conventional methods require access to source data, which often raise concerns…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Yuqi Chen , Xiangbin Zhu , Yonggang Li , Yingjian Li , Haojie Fang

Learning representations of images that are invariant to sensitive or unwanted attributes is important for many tasks including bias removal and cross domain retrieval. Here, our objective is to learn representations that are invariant to…

计算机视觉与模式识别 · 计算机科学 2022-03-23 Jonathan Kahana , Yedid Hoshen

Federated learning improves data privacy and efficiency in machine learning performed over networks of distributed devices, such as mobile phones, IoT and wearable devices, etc. Yet models trained with federated learning can still fail to…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Xingchao Peng , Zijun Huang , Yizhe Zhu , Kate Saenko

In general, an experimental environment for deep learning assumes that the training and the test dataset are sampled from the same distribution. However, in real-world situations, a difference in the distribution between two datasets,…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Daehee Kim , Seunghyun Park , Jinkyu Kim , Jaekoo Lee

Artificial intelligence (AI) is anticipated to play a pivotal role in 6G. However, a key challenge in developing AI-powered solutions is the extensive data collection and labeling efforts required to train supervised deep learning models.…

信号处理 · 电气工程与系统科学 2025-09-04 Ogechukwu Kanu , Ashkan Eshaghbeigi , Hatem Abou-Zeid

We introduce a novel approach to unsupervised and semi-supervised domain adaptation for semantic segmentation. Unlike many earlier methods that rely on adversarial learning for feature alignment, we leverage contrastive learning to bridge…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Weizhe Liu , David Ferstl , Samuel Schulter , Lukas Zebedin , Pascal Fua , Christian Leistner

Contrastive learning has emerged as a competitive pretraining method for object detection. Despite this progress, there has been minimal investigation into the robustness of contrastively pretrained detectors when faced with domain shifts.…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Kyle Buettner , Adriana Kovashka

Radio frequency fingerprint identification (RFFI) is an emerging method for authenticating Internet of Things (IoT) devices. RFFI exploits the intrinsic and unique hardware imperfections for classifying IoT devices. Deep learning-based RFFI…

密码学与安全 · 计算机科学 2025-12-16 Jie Ma , Junqing Zhang , Guanxiong Shen , Linning Peng , Alan Marshall

Semantic segmentation models struggle to generalize in the presence of domain shift. In this paper, we introduce contrastive learning for feature alignment in cross-domain adaptation. We assemble both in-domain contrastive pairs and…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Feihu Zhang , Vladlen Koltun , Philip Torr , René Ranftl , Stephan R. Richter

Contrastive learning is among the most popular and powerful approaches for self-supervised representation learning, where the goal is to map semantically similar samples close together while separating dissimilar ones in the latent space.…

机器学习 · 统计学 2025-12-03 Ali Alvandi , Mina Rezaei

Recently, cross domain transfer has been applied for unsupervised image restoration tasks. However, directly applying existing frameworks would lead to domain-shift problems in translated images due to lack of effective supervision.…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Wenchao Du , Hu Chen , Hongyu Yang

Object recognition from images means to automatically find object(s) of interest and to return their category and location information. Benefiting from research on deep learning, like convolutional neural networks~(CNNs) and generative…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Zhize Wu , Xiaofeng Wang , Tong Xu , Xuebin Yang , Le Zou , Lixiang Xu , Thomas Weise

We present a novel unsupervised domain adaptation method for semantic segmentation that generalizes a model trained with source images and corresponding ground-truth labels to a target domain. A key to domain adaptive semantic segmentation…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Geon Lee , Chanho Eom , Wonkyung Lee , Hyekang Park , Bumsub Ham

Deep convolutional neural networks have considerably improved state-of-the-art results for semantic segmentation. Nevertheless, even modern architectures lack the ability to generalize well to a test dataset that originates from a different…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Robert A. Marsden , Alexander Bartler , Mario Döbler , Bin Yang

Contrastive learning is a family of self-supervised methods where a model is trained to solve a classification task constructed from unlabeled data. It has recently emerged as one of the leading learning paradigms in the absence of labels…

机器学习 · 统计学 2021-03-05 Bingbin Liu , Pradeep Ravikumar , Andrej Risteski