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Novelty detection is a critical task in various engineering fields. Numerous approaches to novelty detection rely on supervised or semi-supervised learning, which requires labelled datasets for training. However, acquiring labelled data,…

Machine Learning · Computer Science 2024-09-12 Ariel Priarone , Umberto Albertin , Carlo Cena , Mauro Martini , Marcello Chiaberge

Self-supervision provides effective representations for downstream tasks without requiring labels. However, existing approaches lag behind fully supervised training and are often not thought beneficial beyond obviating or reducing the need…

Machine Learning · Computer Science 2019-10-30 Dan Hendrycks , Mantas Mazeika , Saurav Kadavath , Dawn Song

In this paper, we study a discriminatively trained deep convolutional network for the task of visual tracking. Our tracker utilizes both motion and appearance features that are extracted from a pre-trained dual stream deep convolution…

Computer Vision and Pattern Recognition · Computer Science 2015-12-15 Meera Hahn , Si Chen , Afshin Dehghan

The lack of labeled data is a key challenge for learning useful representation from time series data. However, an unsupervised representation framework that is capable of producing high quality representations could be of great value. It is…

Machine Learning · Statistics 2022-03-18 Kristoffer Wickstrøm , Michael Kampffmeyer , Karl Øyvind Mikalsen , Robert Jenssen

Unsupervised representation learning approaches aim to learn discriminative feature representations from unlabeled data, without the requirement of annotating every sample. Enabling unsupervised representation learning is extremely crucial…

Machine Learning · Computer Science 2023-08-04 Qianwen Meng , Hangwei Qian , Yong Liu , Yonghui Xu , Zhiqi Shen , Lizhen Cui

A growing specter in the rise of machine learning is whether the decisions made by machine learning models are fair. While research is already underway to formalize a machine-learning concept of fairness and to design frameworks for…

Machine Learning · Computer Science 2020-09-28 Tao Zhang , Tianqing Zhu , Jing Li , Mengde Han , Wanlei Zhou , Philip S. Yu

We consider the problem of complementary fashion prediction. Existing approaches focus on learning an embedding space where fashion items from different categories that are visually compatible are closer to each other. However, creating…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Ambareesh Revanur , Vijay Kumar , Deepthi Sharma

Deep Neural Networks trained in a fully supervised fashion are the dominant technology in perception-based autonomous driving systems. While collecting large amounts of unlabeled data is already a major undertaking, only a subset of it can…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Elmar Haussmann , Michele Fenzi , Kashyap Chitta , Jan Ivanecky , Hanson Xu , Donna Roy , Akshita Mittel , Nicolas Koumchatzky , Clement Farabet , Jose M. Alvarez

A key challenge in scaling up robot learning to many skills and environments is removing the need for human supervision, so that robots can collect their own data and improve their own performance without being limited by the cost of…

Machine Learning · Computer Science 2017-03-14 Chelsea Finn , Sergey Levine

Exemplar learning of visual similarities in an unsupervised manner is a problem of paramount importance to Computer Vision. In this context, however, the recent breakthrough in deep learning could not yet unfold its full potential. With…

Computer Vision and Pattern Recognition · Computer Science 2018-02-26 Artsiom Sanakoyeu , Miguel A. Bautista , Björn Ommer

While much work has been devoted to understanding the implicit (and explicit) regularization of deep nonlinear networks in the supervised setting, this paper focuses on unsupervised learning, i.e., autoencoders are trained with the…

Machine Learning · Computer Science 2021-10-25 Harald Steck , Dario Garcia Garcia

Convolutional networks have marked their place over the last few years as the best performing model for various visual tasks. They are, however, most suited for supervised learning from large amounts of labeled data. Previous attempts have…

Machine Learning · Statistics 2016-11-23 Elad Hoffer , Itay Hubara , Nir Ailon

Unsupervised visual object tracking is a challenging task that requires following arbitrary targets in videos without training on ground-truth annotations. Despite considerable progress, existing state-of-the-art unsupervised trackers often…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Zhengbo Zhang , Zhigang Tu , Junsong Yuan , De Wen Soh , Bo Du

Progress in self-supervised learning has brought strong general image representation learning methods. Yet so far, it has mostly focused on image-level learning. In turn, tasks such as unsupervised image segmentation have not benefited from…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Adrian Ziegler , Yuki M. Asano

Autonomous driving holds great promise in addressing traffic safety concerns by leveraging artificial intelligence and sensor technology. Multi-Object Tracking plays a critical role in ensuring safer and more efficient navigation through…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Lei Cheng , Arindam Sengupta , Siyang Cao

Recent interest in self-supervised dense tracking has yielded rapid progress, but performance still remains far from supervised methods. We propose a dense tracking model trained on videos without any annotations that surpasses previous…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Zihang Lai , Erika Lu , Weidi Xie

The supervised learning paradigm is limited by the cost - and sometimes the impracticality - of data collection and labeling in multiple domains. Self-supervised learning, a paradigm which exploits the structure of unlabeled data to create…

Most of the achievements in artificial intelligence so far were accomplished by supervised learning which requires numerous annotated training data and thus costs innumerable manpower for labeling. Unsupervised learning is one of the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Mingxiang Chen , Zhanguo Chang , Haonan Lu , Bitao Yang , Zhuang Li , Liufang Guo , Zhecheng Wang

Self-supervised pretraining has been observed to be effective at improving feature representations for transfer learning, leveraging large amounts of unlabelled data. This review summarizes recent research into its usage in X-ray, computed…

Machine Learning · Computer Science 2023-09-07 Blake VanBerlo , Jesse Hoey , Alexander Wong

The perception of transparent objects is one of the well-known challenges in computer vision. Conventional depth sensors have difficulty in sensing the depth of transparent objects due to refraction and reflection of light. Previous…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Xianghui Fan , Zhaoyu Chen , Mengyang Pan , Anping Deng , Hang Yang