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Weather data, comprising multiple variables, poses significant challenges due to its high dimensionality and multimodal nature. Creating low-dimensional embeddings requires compressing this data into a compact, shared latent space. This…

机器学习 · 计算机科学 2026-03-27 Nathan Bailey

Graph contrastive learning has shown great promise when labeled data is scarce, but large unlabeled datasets are available. However, it often does not take uncertainty estimation into account. We show that a variational Bayesian neural…

机器学习 · 计算机科学 2023-12-04 Alexander Möllers , Alexander Immer , Elvin Isufi , Vincent Fortuin

Unsupervised clustering aims at discovering the semantic categories of data according to some distance measured in the representation space. However, different categories often overlap with each other in the representation space at the…

Contrastive learning has moved the state of the art for many tasks in computer vision and information retrieval in recent years. This poster is the first work that applies supervised contrastive learning to the task of product matching in…

机器学习 · 计算机科学 2022-05-03 Ralph Peeters , Christian Bizer

Video retrieval is becoming increasingly important owing to the rapid emergence of videos on the Internet. The dominant paradigm for video retrieval learns video-text representations by pushing the distance between the similarity of…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Feng He , Qi Wang , Zhifan Feng , Wenbin Jiang , Yajuan Lv , Yong zhu , Xiao Tan

This paper systematically investigates the effectiveness of various augmentations for contrastive self-supervised learning of electrocardiogram (ECG) signals and identifies the best parameters. The baseline of our proposed self-supervised…

信号处理 · 电气工程与系统科学 2022-06-16 Sahar Soltanieh , Ali Etemad , Javad Hashemi

Contrastive learning between different views of the data achieves outstanding success in the field of self-supervised representation learning and the learned representations are useful in broad downstream tasks. Since all supervision…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Haoqing Wang , Xun Guo , Zhi-Hong Deng , Yan Lu

Recently, self-supervised contrastive learning has achieved great success on various tasks. However, its underlying working mechanism is yet unclear. In this paper, we first provide the tightest bounds based on the widely adopted assumption…

机器学习 · 计算机科学 2025-11-06 Qi Zhang , Yifei Wang , Yisen Wang

Learning a powerful representation from point clouds is a fundamental and challenging problem in the field of computer vision. Different from images where RGB pixels are stored in the regular grid, for point clouds, the underlying semantic…

计算机视觉与模式识别 · 计算机科学 2022-01-28 Feng Yang , Yichao Cao , Qifan Xue , Shuai Jin , Xuanpeng Li , Weigong Zhang

Learning representations that generalize well to unknown downstream tasks is a central challenge in representation learning. Existing approaches such as contrastive learning, self-supervised masking, and denoising auto-encoders address this…

机器学习 · 计算机科学 2025-09-10 Micha Livne

Learning representations that transfer well to diverse downstream tasks remains a central challenge in representation learning. Existing paradigms -- contrastive learning, self-supervised masking, and denoising auto-encoders -- balance this…

机器学习 · 计算机科学 2025-09-29 Micha Livne

Self-Supervised Contrastive Learning has proven effective in deriving high-quality representations from unlabeled data. However, a major challenge that hinders both unimodal and multimodal contrastive learning is feature suppression, a…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Jihai Zhang , Xiang Lan , Xiaoye Qu , Yu Cheng , Mengling Feng , Bryan Hooi

Unsupervised contrastive learning has shown significant performance improvements in recent years, often approaching or even rivaling supervised learning in various tasks. However, its learning mechanism is fundamentally different from…

机器学习 · 计算机科学 2026-03-05 Yi-Ge Zhang , Jingyi Cui , Qiran Li , Yisen Wang

What matters for contrastive learning? We argue that contrastive learning heavily relies on informative features, or "hard" (positive or negative) features. Early works include more informative features by applying complex data…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Jiangmeng Li , Wenwen Qiang , Changwen Zheng , Bing Su , Hui Xiong

Contrastive representation learning has been recently proved to be very efficient for self-supervised training. These methods have been successfully used to train encoders which perform comparably to supervised training on downstream…

机器学习 · 计算机科学 2020-12-03 Ibrahim Merad , Yiyang Yu , Emmanuel Bacry , Stéphane Gaïffas

Recommender systems guide users through vast amounts of information by suggesting items based on their predicted preferences. Collaborative filtering-based deep learning techniques have regained popularity due to their straightforward…

机器学习 · 计算机科学 2024-09-11 Makbule Gulcin Ozsoy

Contrastive learning has become pivotal in unsupervised representation learning, with frameworks like Momentum Contrast (MoCo) effectively utilizing large negative sample sets to extract discriminative features. However, traditional…

机器学习 · 计算机科学 2025-01-29 Duy Hoang , Huy Ngo , Khoi Pham , Tri Nguyen , Gia Bao , Huy Phan

Datasets for biosignals, such as electroencephalogram (EEG) and electrocardiogram (ECG), often have noisy labels and have limited number of subjects (<100). To handle these challenges, we propose a self-supervised approach based on…

机器学习 · 计算机科学 2020-07-10 Joseph Y. Cheng , Hanlin Goh , Kaan Dogrusoz , Oncel Tuzel , Erdrin Azemi

Learning knowledge representation is an increasingly important technology that supports a variety of machine learning related applications. However, the choice of hyperparameters is seldom justified and usually relies on exhaustive search.…

机器学习 · 计算机科学 2019-12-24 Matthew Wai Heng Chung , Hegler Tissot

Translation-based embedding models have gained significant attention in link prediction tasks for knowledge graphs. TransE is the primary model among translation-based embeddings and is well-known for its low complexity and high efficiency.…

计算与语言 · 计算机科学 2019-07-12 Mojtaba Nayyeri , Xiaotian Zhou , Sahar Vahdati , Hamed Shariat Yazdi , Jens Lehmann