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We investigate contrastive learning in the federated setting through the lens of SimCLR and multi-view mutual information maximization. In doing so, we uncover a connection between contrastive representation learning and user verification;…

机器学习 · 计算机科学 2024-05-06 Christos Louizos , Matthias Reisser , Denis Korzhenkov

We propose Context-Adaptive Multi-Prompt Embedding, a novel approach to enrich semantic representations in vision-language contrastive learning. Unlike standard CLIP-style models that rely on a single text embedding, our method introduces…

机器学习 · 计算机科学 2025-08-07 Dahun Kim , Anelia Angelova

Variable names are critical for conveying intended program behavior. Machine learning-based program analysis methods use variable name representations for a wide range of tasks, such as suggesting new variable names and bug detection.…

软件工程 · 计算机科学 2021-12-07 Qibin Chen , Jeremy Lacomis , Edward J. Schwartz , Graham Neubig , Bogdan Vasilescu , Claire Le Goues

Value Decomposition (VD) aims to deduce the contributions of agents for decentralized policies in the presence of only global rewards, and has recently emerged as a powerful credit assignment paradigm for tackling cooperative Multi-Agent…

机器学习 · 计算机科学 2023-03-15 Shunyu Liu , Yihe Zhou , Jie Song , Tongya Zheng , Kaixuan Chen , Tongtian Zhu , Zunlei Feng , Mingli Song

The image-text retrieval task aims to retrieve relevant information from a given image or text. The main challenge is to unify multimodal representation and distinguish fine-grained differences across modalities, thereby finding similar…

多媒体 · 计算机科学 2024-05-20 Ziyu Gong , Chengcheng Mai , Yihua Huang

Medical image segmentation is a fundamental yet challenging task due to the arduous process of acquiring large volumes of high-quality labeled data from experts. Contrastive learning offers a promising but still problematic solution to this…

计算机视觉与模式识别 · 计算机科学 2025-02-14 Shuang Zeng , Lei Zhu , Xinliang Zhang , Micky C Nnamdi , Wenqi Shi , J Ben Tamo , Qian Chen , Hangzhou He , Lujia Jin , Zifeng Tian , Qiushi Ren , Zhaoheng Xie , Yanye Lu

The ability to learn from context with novel concepts, and deliver appropriate responses are essential in human conversations. Despite current Multimodal Large Language Models (MLLMs) and Large Language Models (LLMs) being trained on…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Yan Tai , Weichen Fan , Zhao Zhang , Feng Zhu , Rui Zhao , Ziwei Liu

Contrastive Language-Image Pre-training (CLIP) has drawn increasing attention recently for its transferable visual representation learning. However, due to the semantic gap within datasets, CLIP's pre-trained image-text alignment becomes…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Longtian Qiu , Renrui Zhang , Ziyu Guo , Ziyao Zeng , Zilu Guo , Yafeng Li , Guangnan Zhang

Contrastive learning has achieved remarkable success in representation learning via self-supervision in unsupervised settings. However, effectively adapting contrastive learning to supervised learning tasks remains as a challenge in…

计算与语言 · 计算机科学 2022-01-24 Qianben Chen , Richong Zhang , Yaowei Zheng , Yongyi Mao

Text-based person retrieval aims to identify specific individuals within an image database using textual descriptions. Due to the high cost of annotation and privacy protection, researchers resort to synthesized data for the paradigm of…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Hang Yu , Jiahao Wen , Zhedong Zheng

Unsupervised learning is a challenging task due to the lack of labels. Multiple Object Tracking (MOT), which inevitably suffers from mutual object interference, occlusion, etc., is even more difficult without label supervision. In this…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Sha Meng , Dian Shao , Jiacheng Guo , Shan Gao

Recently, pretext-task based methods are proposed one after another in self-supervised video feature learning. Meanwhile, contrastive learning methods also yield good performance. Usually, new methods can beat previous ones as claimed that…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Li Tao , Xueting Wang , Toshihiko Yamasaki

Automatic detection of multimodal fake news has gained a widespread attention recently. Many existing approaches seek to fuse unimodal features to produce multimodal news representations. However, the potential of powerful cross-modal…

机器学习 · 计算机科学 2023-08-14 Longzheng Wang , Chuang Zhang , Hongbo Xu , Yongxiu Xu , Xiaohan Xu , Siqi Wang

Web-scale visual entity recognition, the task of associating images with their corresponding entities within vast knowledge bases like Wikipedia, presents significant challenges due to the lack of clean, large-scale training data. In this…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Mathilde Caron , Alireza Fathi , Cordelia Schmid , Ahmet Iscen

Previous approaches to the task of implicit discourse relation recognition (IDRR) generally view it as a classification task. Even with pre-trained language models, like BERT and RoBERTa, IDRR still relies on complicated neural networks…

计算与语言 · 计算机科学 2024-09-24 Yiheng Wu , Junhui Li , Muhua Zhu

While multimodal data integrating diverse imaging and clinical tabular records is crucial for accurate medical diagnosis, the arbitrary absence of specific modalities is prevalent in clinical practice, severely degrading the performance of…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Tianling Liu , Lequan Yu , Tong Han , Liang Wan

We propose Domain-Conditioned Meta-Contrastive Learning, a framework for improving the cross-domain generalization of vision-language models. While contrastive models such as CLIP achieve strong performance through large-scale training,…

最优化与控制 · 数学 2026-03-31 Merham Fouladvand , Peuroly Batra

Technological advances facilitate the ability to acquire multimodal data, posing a challenge for recognition systems while also providing an opportunity to use the heterogeneous nature of the information to increase the generalization…

机器学习 · 计算机科学 2024-08-06 Paweł Zyblewski , Leandro L. Minku

The success of deep learning heavily depends on the availability of large labeled training sets. However, it is hard to get large labeled datasets in medical image domain because of the strict privacy concern and costly labeling efforts.…

计算机视觉与模式识别 · 计算机科学 2021-09-30 Dewen Zeng , Yawen Wu , Xinrong Hu , Xiaowei Xu , Haiyun Yuan , Meiping Huang , Jian Zhuang , Jingtong Hu , Yiyu Shi

Whilst contrastive learning has recently brought notable benefits to deep clustering of unlabelled images by learning sample-specific discriminative visual features, its potential for explicitly inferring class decision boundaries is less…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Jiabo Huang , Shaogang Gong