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Self-supervised learning, especially contrastive learning, has made an outstanding contribution to the development of many deep learning research fields. Recently, researchers in the acoustic signal processing field noticed its success and…

声音 · 计算机科学 2022-04-05 Dong Yao , Zhou Zhao , Shengyu Zhang , Jieming Zhu , Yudong Zhu , Rui Zhang , Xiuqiang He

We introduce Contrastive FUSE, a fast and unified framework for scalable node representation learning in graphs with partially available pairwise node labels and no available node features. Unlike existing methods, we directly optimize a…

机器学习 · 计算机科学 2026-05-20 Sujan Chakraborty , Saptarshi Bej

Pre-training on time series poses a unique challenge due to the potential mismatch between pre-training and target domains, such as shifts in temporal dynamics, fast-evolving trends, and long-range and short-cyclic effects, which can lead…

机器学习 · 计算机科学 2022-10-18 Xiang Zhang , Ziyuan Zhao , Theodoros Tsiligkaridis , Marinka Zitnik

Contrastive learning has shown promising potential for learning robust representations by utilizing unlabeled data. However, constructing effective positive-negative pairs for contrastive learning on facial behavior datasets remains…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Xiang Zhang , Taoyue Wang , Xiaotian Li , Huiyuan Yang , Lijun Yin

Time series forecasting (TSF) holds significant importance in modern society, spanning numerous domains. Previous representation learning-based TSF algorithms typically embrace a contrastive learning paradigm featuring segregated…

机器学习 · 计算机科学 2023-12-12 Jiaxin Gao , Yuxiao Hu , Qinglong Cao , Siqi Dai , Yuntian Chen

Cooperative inference across independently deployed machine learning models is increasingly desirable in distributed environments, as there is a growing need to leverage multiple models while keeping their data and model parameters private.…

机器学习 · 计算机科学 2026-05-08 Yui Hashimoto , Takayuki Nishio , Yuichi Kitagawa , Takahito Tanimura

Detecting anomalies is one fundamental aspect of a safety-critical software system, however, it remains a long-standing problem. Numerous branches of works have been proposed to alleviate the complication and have demonstrated their…

机器学习 · 计算机科学 2023-01-31 Hyunsoo Cho , Jinseok Seol , Sang-goo Lee

Contrastive learning (CL) has emerged as a promising approach for representation learning in time series data by embedding similar pairs closely while distancing dissimilar ones. However, existing CL methods often introduce false negative…

机器学习 · 计算机科学 2024-10-15 Yu Wu , Ting Dang , Dimitris Spathis , Hong Jia , Cecilia Mascolo

The integration of Fourier transform and deep learning opens new avenues for time series forecasting. We reconsider the Fourier transform from a basis functions perspective. Specifically, the real and imaginary parts of the frequency…

机器学习 · 计算机科学 2025-08-05 Runze Yang , Longbing Cao , Xin You , Kun Fang , Jianxun Li , Jie Yang

Contrastive learning is emerging as a powerful technique for extracting knowledge from unlabeled data. This technique requires a balanced mixture of two ingredients: positive (similar) and negative (dissimilar) samples. This is typically…

计算与语言 · 计算机科学 2022-03-17 Rui Cao , Yihao Wang , Yuxin Liang , Ling Gao , Jie Zheng , Jie Ren , Zheng Wang

Recent contrastive methods show significant improvement in self-supervised learning in several domains. In particular, contrastive methods are most effective where data augmentation can be easily constructed e.g. in computer vision.…

机器学习 · 计算机科学 2021-12-09 Konstantinos Kallidromitis , Denis Gudovskiy , Kazuki Kozuka , Iku Ohama , Luca Rigazio

In this work, we investigate the time series representation learning problem using self-supervised techniques. Contrastive learning is well-known in this area as it is a powerful method for extracting information from the series and…

机器学习 · 计算机科学 2024-10-08 Duy A. Nguyen , Trang H. Tran , Huy Hieu Pham , Phi Le Nguyen , Lam M. Nguyen

Masked AutoEncoder (MAE) has revolutionized the field of self-supervised learning with its simple yet effective masking and reconstruction strategies. However, despite achieving state-of-the-art performance across various downstream vision…

计算机视觉与模式识别 · 计算机科学 2023-12-11 Xiaoyu Yue , Lei Bai , Meng Wei , Jiangmiao Pang , Xihui Liu , Luping Zhou , Wanli Ouyang

Embedding methods have achieved success in face recognition by comparing facial features in a latent semantic space. However, in a fully unconstrained face setting, the facial features learned by the embedding model could be ambiguous or…

计算机视觉与模式识别 · 计算机科学 2019-08-08 Yichun Shi , Anil K. Jain

The success of self-supervised contrastive learning hinges on identifying positive data pairs, such that when they are pushed together in embedding space, the space encodes useful information for subsequent downstream tasks. Constructing…

机器学习 · 计算机科学 2024-10-29 Maxwell A. Xu , Alexander Moreno , Hui Wei , Benjamin M. Marlin , James M. Rehg

Despite recent advancements in Self-Supervised Learning (SSL) for time series analysis, a noticeable gap persists between the anticipated achievements and actual performance. While these methods have demonstrated formidable generalization…

机器学习 · 计算机科学 2024-07-25 Adrian Atienza , Jakob Bardram , Sadasivan Puthusserypady

Sequential recommendation (SR) aims to model user preferences by capturing behavior patterns from their item historical interaction data. Most existing methods model user preference in the time domain, omitting the fact that users'…

信息检索 · 计算机科学 2023-05-09 Xinyu Du , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Guanfeng Liu , Yanchi Liu , Victor S. Sheng , Xiaofang Zhou

Current applications of self-supervised learning to wireless channel representation often borrow paradigms developed for text and image processing, without fully addressing the unique characteristics and constraints of wireless…

机器学习 · 计算机科学 2025-10-23 Berkay Guler , Giovanni Geraci , Hamid Jafarkhani

Self-supervised frameworks for representation learning have recently stirred up interest among the remote sensing community, given their potential to mitigate the high labeling costs associated with curating large satellite image datasets.…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Hugo Chan-To-Hing , Bharadwaj Veeravalli

Radio Frequency (RF) device fingerprinting has been recognized as a potential technology for enabling automated wireless device identification and classification. However, it faces a key challenge due to the domain shift that could arise…

机器学习 · 计算机科学 2024-03-08 Jun Chen , Weng-Keen Wong , Bechir Hamdaoui