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Self-supervised Contrastive Learning (CL) has been recently shown to be very effective in preventing deep networks from overfitting noisy labels. Despite its empirical success, the theoretical understanding of the effect of contrastive…

机器学习 · 计算机科学 2022-07-06 Yihao Xue , Kyle Whitecross , Baharan Mirzasoleiman

Optimal transport (OT) defines a powerful framework to compare probability distributions in a geometrically faithful way. However, the practical impact of OT is still limited because of its computational burden. We propose a new class of…

最优化与控制 · 数学 2016-05-30 Genevay Aude , Marco Cuturi , Gabriel Peyré , Francis Bach

The primary objective of methods in continual learning is to learn tasks in a sequential manner over time (sometimes from a stream of data), while mitigating the detrimental phenomenon of catastrophic forgetting. This paper proposes a…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Nisha L. Raichur , Lucas Heublein , Tobias Feigl , Alexander Rügamer , Christopher Mutschler , Felix Ott

Contrastive learning is a recent promising approach in unsupervised representation learning where a feature representation of data is learned by solving a pseudo classification problem from unlabelled data. However, it is not…

机器学习 · 计算机科学 2022-08-10 Hiroaki Sasaki , Takashi Takenouchi

Contrastive approaches to representation learning have recently shown great promise. In contrast to generative approaches, these contrastive models learn a deterministic encoder with no notion of uncertainty or confidence. In this paper, we…

机器学习 · 计算机科学 2020-10-06 Mike Wu , Noah Goodman

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

Contrastive losses have long been a key ingredient of deep metric learning and are now becoming more popular due to the success of self-supervised learning. Recent research has shown the benefit of decomposing such losses into two…

机器学习 · 计算机科学 2021-12-23 Arnaud Sors , Rafael Sampaio de Rezende , Sarah Ibrahimi , Jean-Marc Andreoli

Learning good representations involves capturing the diverse ways in which data samples relate. Contrastive loss - an objective matching related samples - underlies methods from self-supervised to multimodal learning. Contrastive losses,…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Vlad Sobal , Mark Ibrahim , Randall Balestriero , Vivien Cabannes , Diane Bouchacourt , Pietro Astolfi , Kyunghyun Cho , Yann LeCun

Recently, semantic communication has been widely applied in wireless image transmission systems as it can prioritize the preservation of meaningful semantic information in images over the accuracy of transmitted symbols, leading to improved…

信息论 · 计算机科学 2023-04-20 Shunpu Tang , Qianqian Yang , Lisheng Fan , Xianfu Lei , Yansha Deng , Arumugam Nallanathan

Optimal transport (OT) is a widely used technique for distribution alignment, with applications throughout the machine learning, graphics, and vision communities. Without any additional structural assumptions on trans-port, however, OT can…

机器学习 · 计算机科学 2021-07-20 Chi-Heng Lin , Mehdi Azabou , Eva L. Dyer

Traditional test-time training (TTT) methods, while addressing domain shifts, often assume a consistent class set, limiting their applicability in real-world scenarios characterized by infinite variety. Open-World Test-Time Training (OWTTT)…

机器学习 · 计算机科学 2024-09-17 Houcheng Su , Mengzhu Wang , Jiao Li , Bingli Wang , Daixian Liu , Zeheng Wang

Multi-label classification, which involves assigning multiple labels to a single input, has emerged as a key area in both research and industry due to its wide-ranging applications. Designing effective loss functions is crucial for…

机器学习 · 计算机科学 2025-01-06 Alexandre Audibert , Aurélien Gauffre , Massih-Reza Amini

Contrastive representation learning has emerged as an outstanding approach for anomaly detection. In this work, we explore the $\ell_2$-norm of contrastive features and its applications in out-of-distribution detection. We propose a simple…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Tai Le-Gia , Jaehyun Ahn

Contrastive Learning (CL) has been successfully applied to classification and other downstream tasks related to concrete concepts, such as objects contained in the ImageNet dataset. No attempts seem to have been made so far in applying this…

机器学习 · 计算机科学 2025-05-30 Daniel N. Nissani

Advances in the field of vision-language contrastive learning have made it possible for many downstream applications to be carried out efficiently and accurately by simply taking the dot product between image and text representations. One…

机器学习 · 计算机科学 2023-10-20 Yifei Zhou , Juntao Ren , Fengyu Li , Ramin Zabih , Ser-Nam Lim

Instance-level Image Retrieval (IIR), or simply Instance Retrieval, deals with the problem of finding all the images within an dataset that contain a query instance (e.g. an object). This paper makes the first attempt that tackles this…

计算机视觉与模式识别 · 计算机科学 2022-09-29 Tao Wu , Tie Luo , Donald Wunsch

Communication is a powerful tool for coordination in multi-agent RL. But inducing an effective, common language is a difficult challenge, particularly in the decentralized setting. In this work, we introduce an alternative perspective where…

人工智能 · 计算机科学 2024-02-05 Yat Long Lo , Biswa Sengupta , Jakob Foerster , Michael Noukhovitch

The effectiveness of contrastive learning technology in natural language processing tasks is yet to be explored and analyzed. How to construct positive and negative samples correctly and reasonably is the core challenge of contrastive…

计算与语言 · 计算机科学 2023-07-17 Nankai Lin , Guanqiu Qin , Jigang Wang , Aimin Yang , Dong Zhou

Learning an effective representation in multi-label text classification (MLTC) is a significant challenge in NLP. This challenge arises from the inherent complexity of the task, which is shaped by two key factors: the intricate connections…

机器学习 · 计算机科学 2024-04-16 Alexandre Audibert , Aurélien Gauffre , Massih-Reza Amini

Noise ubiquitously exists in signals due to numerous factors including physical, electronic, and environmental effects. Traditional methods of symbolic regression, such as genetic programming or deep learning models, aim to find the most…

机器学习 · 计算机科学 2024-06-24 Jingyi Liu , Yanjie Li , Lina Yu , Min Wu , Weijun Li , Wenqiang Li , Meilan Hao , Yusong Deng , Shu Wei