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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,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Vlad Sobal , Mark Ibrahim , Randall Balestriero , Vivien Cabannes , Diane Bouchacourt , Pietro Astolfi , Kyunghyun Cho , Yann LeCun

Place recognition is an essential and challenging task in loop closing and global localization for robotics and autonomous driving applications. Benefiting from the recent advances in deep learning techniques, the performance of LiDAR place…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Jiafeng Cui , Xieyuanli Chen

Despite their consistent performance improvements, cross-modal retrieval models (e.g., CLIP) show degraded performances with retrieving keys composed of fused image-text modality (e.g., Wikipedia pages with both images and text). To address…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Jungsoo Lee , Janghoon Cho , Hyojin Park , Munawar Hayat , Kyuwoong Hwang , Fatih Porikli , Sungha Choi

Cross-modal contrastive learning has led the recent advances in multimodal retrieval with its simplicity and effectiveness. In this work, however, we reveal that cross-modal contrastive learning suffers from incorrect normalization of the…

Information Retrieval · Computer Science 2022-12-23 Yookoon Park , Mahmoud Azab , Bo Xiong , Seungwhan Moon , Florian Metze , Gourab Kundu , Kirmani Ahmed

Learning effective visual representations without human supervision is a long-standing problem in computer vision. Recent advances in self-supervised learning algorithms have utilized contrastive learning, with methods such as SimCLR, which…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Jansel Herrera-Gerena , Ramakrishnan Sundareswaran , John Just , Matthew Darr , Ali Jannesari

In the field of multimodal fact checking, the accuracy of retrieving evidence from different modalities has a significant impact on the downstream claim verification process. Existing general multimodal retrieval methods are often…

Information Retrieval · Computer Science 2026-05-28 Zhongtian Hua , Yi Luo , Meijia Yu , Yingjie Han

Learning semantic-rich representations from raw unlabeled time series data is critical for downstream tasks such as classification and forecasting. Contrastive learning has recently shown its promising representation learning capability in…

Machine Learning · Computer Science 2023-03-31 Qianwen Meng , Hangwei Qian , Yong Liu , Lizhen Cui , Yonghui Xu , Zhiqi Shen

This paper explores useful modifications of the recent development in contrastive learning via novel probabilistic modeling. We derive a particular form of contrastive loss named Joint Contrastive Learning (JCL). JCL implicitly involves the…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Qi Cai , Yu Wang , Yingwei Pan , Ting Yao , Tao Mei

Contrastive self-supervised learning (SSL) learns an embedding space that maps similar data pairs closer and dissimilar data pairs farther apart. Despite its success, one issue has been overlooked: the fairness aspect of representations…

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…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Haoqing Wang , Xun Guo , Zhi-Hong Deng , Yan Lu

Multi-view learning (MVL) has gained great success in integrating information from multiple perspectives of a dataset to improve downstream task performance. To make MVL methods more practical in an open-ended environment, this paper…

Machine Learning · Computer Science 2023-10-16 Depeng Li , Tianqi Wang , Junwei Chen , Kenji Kawaguchi , Cheng Lian , Zhigang Zeng

Medical images and reports offer invaluable insights into patient health. The heterogeneity and complexity of these data hinder effective analysis. To bridge this gap, we investigate contrastive learning models for cross-domain retrieval,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Demetrio Deanda , Yuktha Priya Masupalli , Jeong Yang , Young Lee , Zechun Cao , Gongbo Liang

Recent contrastive learning methods have shown to be effective in various tasks, learning generalizable representations invariant to data augmentation thereby leading to state of the art performances. Regarding the multifaceted nature of…

Machine Learning · Computer Science 2022-05-27 MinGyu Choi , Wonseok Shin , Yijingxiu Lu , Sun Kim

Hierarchical classification is a crucial task in many applications, where objects are organized into multiple levels of categories. However, conventional classification approaches often neglect inherent inter-class relationships at…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Julius Ott , Nastassia Vysotskaya , Huawei Sun , Lorenzo Servadei , Robert Wille

Self-supervised learning (SSL) has recently achieved great success in mining the user-item interactions for collaborative filtering. As a major paradigm, contrastive learning (CL) based SSL helps address data sparsity in Web platforms by…

Information Retrieval · Computer Science 2024-02-20 Dan Zhang , Yangliao Geng , Wenwen Gong , Zhongang Qi , Zhiyu Chen , Xing Tang , Ying Shan , Yuxiao Dong , Jie Tang

In business analysis, providing effective recommendations is essential for enhancing company profits. The utilization of graph-based structures, such as bipartite graphs, has gained popularity for their ability to analyze complex data…

Information Retrieval · Computer Science 2025-01-14 Jiayang Wu , Wensheng Gan , Huashen Lu , Philip S. Yu

Contrastive learning (CL) has become a powerful approach for learning representations from unlabeled images. However, existing CL methods focus predominantly on visual appearance features while neglecting topological characteristics (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Guangyu Meng , Pengfei Gu , Peixian Liang , John P. Lalor , Erin Wolf Chambers , Danny Z. Chen

In this work, we aim to consider the application of contrastive learning in the scenario of the recommendation system adequately, making it more suitable for recommendation task. We propose a learning paradigm called supervised contrastive…

Information Retrieval · Computer Science 2022-04-20 Chun Yang

Contrastive learning (CL) has recently been applied to adversarial learning tasks. Such practice considers adversarial samples as additional positive views of an instance, and by maximizing their agreements with each other, yields better…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Qiying Yu , Jieming Lou , Xianyuan Zhan , Qizhang Li , Wangmeng Zuo , Yang Liu , Jingjing Liu

Personalized recommender systems play a crucial role in capturing users' evolving preferences over time to provide accurate and effective recommendations on various online platforms. However, many recommendation models rely on a single type…

Information Retrieval · Computer Science 2023-10-23 Wei Wei , Lianghao Xia , Chao Huang
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