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Multi-view (or -modality) representation learning aims to understand the relationships between different view representations. Existing methods disentangle multi-view representations into consistent and view-specific representations by…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Guanzhou Ke , Yang Yu , Guoqing Chao , Xiaoli Wang , Chenyang Xu , Shengfeng He

Detection of periodic patterns of interest within noisy time series data plays a critical role in various tasks, spanning from health monitoring to behavior analysis. Existing learning techniques often rely on labels or clean versions of…

Machine Learning · Computer Science 2025-06-24 Berken Utku Demirel , Christian Holz

In this paper, we present an approach for learning a visual representation from the raw spatiotemporal signals in videos. Our representation is learned without supervision from semantic labels. We formulate our method as an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Ishan Misra , C. Lawrence Zitnick , Martial Hebert

To highlight the challenges of achieving representation disentanglement for text domain in an unsupervised setting, in this paper we select a representative set of successfully applied models from the image domain. We evaluate these models…

Computation and Language · Computer Science 2021-06-08 Lan Zhang , Victor Prokhorov , Ehsan Shareghi

Deep clustering against self-supervised learning is a very important and promising direction for unsupervised visual representation learning since it requires little domain knowledge to design pretext tasks. However, the key component,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-21 Weijie Chen , Shiliang Pu , Di Xie , Shicai Yang , Yilu Guo , Luojun Lin

Learning time-series representations when only unlabeled data or few labeled samples are available can be a challenging task. Recently, contrastive self-supervised learning has shown great improvement in extracting useful representations…

Machine Learning · Computer Science 2023-09-06 Emadeldeen Eldele , Mohamed Ragab , Zhenghua Chen , Min Wu , Chee-Keong Kwoh , Xiaoli Li , Cuntai Guan

Self-supervised learning (SSL) has recently emerged as a powerful approach to learning representations from large-scale unlabeled data, showing promising results in time series analysis. The self-supervised representation learning can be…

Machine Learning · Computer Science 2024-03-18 Ziyu Liu , Azadeh Alavi , Minyi Li , Xiang Zhang

Recently there has been an increased interest in unsupervised learning of disentangled representations using the Variational Autoencoder (VAE) framework. Most of the existing work has focused largely on modifying the variational cost…

Machine Learning · Statistics 2019-09-12 Jan Stühmer , Richard E. Turner , Sebastian Nowozin

Contrastive learning has shown to be effective to learn representations from time series in a self-supervised way. However, contrasting similar time series instances or values from adjacent timestamps within a time series leads to ignore…

Machine Learning · Computer Science 2026-01-15 Seunghan Lee , Taeyoung Park , Kibok Lee

Exemplar learning is a powerful paradigm for discovering visual similarities in an unsupervised manner. In this context, however, the recent breakthrough in deep learning could not yet unfold its full potential. With only a single positive…

Computer Vision and Pattern Recognition · Computer Science 2016-09-01 Miguel A. Bautista , Artsiom Sanakoyeu , Ekaterina Sutter , Björn Ommer

After a model is deployed on edge devices, it is desirable for these devices to learn from unlabeled data to continuously improve accuracy. Contrastive learning has demonstrated its great potential in learning from unlabeled data. However,…

Machine Learning · Computer Science 2021-06-08 Yawen Wu , Zhepeng Wang , Dewen Zeng , Yiyu Shi , Jingtong Hu

Continual learning aims to learn new tasks incrementally using less computation and memory resources instead of retraining the model from scratch whenever new task arrives. However, existing approaches are designed in supervised fashion…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jiangpeng He , Fengqing Zhu

Unsupervised learning of visual similarities is of paramount importance to computer vision, particularly due to lacking training data for fine-grained similarities. Deep learning of similarities is often based on relationships between pairs…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Miguel A Bautista , Artsiom Sanakoyeu , Björn Ommer

Unsupervised lifelong learning refers to the ability to learn over time while memorizing previous patterns without supervision. Although great progress has been made in this direction, existing work often assumes strong prior knowledge…

Machine Learning · Computer Science 2023-04-12 Xiaofan Yu , Yunhui Guo , Sicun Gao , Tajana Rosing

Improving generalization is a major challenge in audio classification due to labeled data scarcity. Self-supervised learning (SSL) methods tackle this by leveraging unlabeled data to learn useful features for downstream classification…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-22 Melikasadat Emami , Dung Tran , Kazuhito Koishida

Self-supervised contrastive learning is an effective approach for addressing the challenge of limited labelled data. This study builds upon the previously established two-stage patch-level, multi-label classification method for…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Salma Haidar , José Oramas

The ability to learn disentangled representations that split underlying sources of variation in high dimensional, unstructured data is important for data efficient and robust use of neural networks. While various approaches aiming towards…

Machine Learning · Statistics 2019-05-15 Raphael Suter , Đorđe Miladinović , Bernhard Schölkopf , Stefan Bauer

Traditional approaches to RL have focused on learning decision policies directly from episodic decisions, while slowly and implicitly learning the semantics of compositional representations needed for generalization. While some approaches…

Computation and Language · Computer Science 2022-12-23 Chris Lengerich , Gabriel Synnaeve , Amy Zhang , Hugh Leather , Kurt Shuster , François Charton , Charysse Redwood

Semi-Supervised Semantic Segmentation (S4) aims to train a segmentation model with limited labeled images and a substantial volume of unlabeled images. To improve the robustness of representations, powerful methods introduce a pixel-wise…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Changqi Wang , Haoyu Xie , Yuhui Yuan , Chong Fu , Xiangyu Yue

Currently, learning better unsupervised sentence representations is the pursuit of many natural language processing communities. Lots of approaches based on pre-trained language models (PLMs) and contrastive learning have achieved promising…

Computation and Language · Computer Science 2023-05-11 Nuo Chen , Linjun Shou , Ming Gong , Jian Pei , Bowen Cao , Jianhui Chang , Daxin Jiang , Jia Li