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This paper investigates the impact of sampling and pretraining using datasets with different image characteristics on the performance of self-supervised learning (SSL) models for object classification. To do this, we sample two apartment…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Raynor Kirkson E. Chavez , Kyle Gabriel M. Reynoso

In recent years Convolutional neural networks (CNN) have made significant progress in computer vision. These advancements have been applied to other areas, such as remote sensing and have shown satisfactory results. However, the lack of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-01 Ali Ghanbarzade , Hossein Soleimani

We investigate a strategy for improving the efficiency of contrastive learning of visual representations by leveraging a small amount of supervised information during pre-training. We propose a semi-supervised loss, SuNCEt, based on…

Machine Learning · Computer Science 2020-12-03 Mahmoud Assran , Nicolas Ballas , Lluis Castrejon , Michael Rabbat

Existing studies on self-supervised speech representation learning have focused on developing new training methods and applying pre-trained models for different applications. However, the quality of these models is often measured by the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-18 Alexander H. Liu , Sung-Lin Yeh , James Glass

We present a method for learning multiple scene representations given a small labeled set, by exploiting the relationships between such representations in the form of a multi-task hypergraph. We also show how we can use the hypergraph to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Alina Marcu , Mihai Pirvu , Dragos Costea , Emanuela Haller , Emil Slusanschi , Ahmed Nabil Belbachir , Rahul Sukthankar , Marius Leordeanu

Semi-supervised learning techniques are gaining popularity due to their capability of building models that are effective, even when scarce amounts of labeled data are available. In this paper, we present a framework and specific tasks for…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Antonio Montanaro , Diego Valsesia , Giulia Fracastoro , Enrico Magli

Self-supervised learning methods are gaining increasing traction in computer vision due to their recent success in reducing the gap with supervised learning. In natural language processing (NLP) self-supervised learning and transformers are…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Sara Atito , Muhammad Awais , Josef Kittler

In this paper, we are interested in understanding self-supervised pretraining through studying the capability that self-supervised representation pretraining methods learn part-aware representations. The study is mainly motivated by that…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Jie Zhu , Jiyang Qi , Mingyu Ding , Xiaokang Chen , Ping Luo , Xinggang Wang , Wenyu Liu , Leye Wang , Jingdong Wang

Intelligent agent naturally learns from motion. Various self-supervised algorithms have leveraged motion cues to learn effective visual representations. The hurdle here is that motion is both ambiguous and complex, rendering previous works…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Xiaohang Zhan , Xingang Pan , Ziwei Liu , Dahua Lin , Chen Change Loy

We consider the problem of unsupervised domain adaptation for image classification. To learn target-domain-aware features from the unlabeled data, we create a self-supervised pretext task by augmenting the unlabeled data with a certain type…

Computer Vision and Pattern Recognition · Computer Science 2020-10-16 L. Xiao , J. Xu , D. Zhao , Z. Wang , L. Wang , Y. Nie , B. Dai

As the field of deep learning steadily transitions from the realm of academic research to practical application, the significance of self-supervised pretraining methods has become increasingly prominent. These methods, particularly in the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Toni Albert , Bjoern Eskofier , Dario Zanca

To successfully tackle challenging manipulation tasks, autonomous agents must learn a diverse set of skills and how to combine them. Recently, self-supervised agents that set their own abstract goals by exploiting the discovered structure…

Machine Learning · Computer Science 2022-02-01 Andrii Zadaianchuk , Georg Martius , Fanny Yang

We present a new self-supervised pre-training of Vision Transformers for dense prediction tasks. It is based on a contrastive loss across views that compares pixel-level representations to global image representations. This strategy…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Jaonary Rabarisoa , Valentin Belissen , Florian Chabot , Quoc-Cuong Pham

Recent advances in deep learning have achieved promising performance for medical image analysis, while in most cases ground-truth annotations from human experts are necessary to train the deep model. In practice, such annotations are…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Jianbo Jiao , Richard Droste , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble

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

Self-supervised visual representation learning has seen huge progress recently, but no large scale evaluation has compared the many models now available. We evaluate the transfer performance of 13 top self-supervised models on 40 downstream…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Linus Ericsson , Henry Gouk , Timothy M. Hospedales

Self-supervised learning can significantly improve the performance of downstream tasks, however, the dimensions of learned representations normally lack explicit physical meanings. In this work, we propose a novel self-supervised approach…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-19 Yifan Sun , Xihong Wu

This thesis addresses the challenge of understanding Neural Networks through the lens of their most fundamental component: the weights, which encapsulate the learned information and determine the model behavior. At the core of this thesis…

Machine Learning · Computer Science 2024-10-08 Konstantin Schürholt

We explore the power of spatial context as a self-supervisory signal for learning visual representations. In particular, we propose spatial context networks that learn to predict a representation of one image patch from another image patch,…

Computer Vision and Pattern Recognition · Computer Science 2019-01-31 Zuxuan Wu , Larry S. Davis , Leonid Sigal

Self-supervised learning is an empirically successful approach to unsupervised learning based on creating artificial supervised learning problems. A popular self-supervised approach to representation learning is contrastive learning, which…

Machine Learning · Computer Science 2021-04-16 Christopher Tosh , Akshay Krishnamurthy , Daniel Hsu