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Self-supervised contrastive learning frameworks have progressed rapidly over the last few years. In this paper, we propose a novel loss function for contrastive learning. We model our pre-training task as a binary classification problem to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Siladittya Manna , Umapada Pal , Saumik Bhattacharya

With the recent advancements in edge artificial intelligence (AI), future sixth-generation (6G) networks need to support new AI tasks such as classification and clustering apart from data recovery. Motivated by the success of deep learning,…

Networking and Internet Architecture · Computer Science 2023-04-06 Zhonghao Lyu , Guangxu Zhu , Jie Xu , Bo Ai , Shuguang Cui

Semantic communications can reduce the resource consumption by transmitting task-related semantic information extracted from source messages. However, when the source messages are utilized for various tasks, e.g., wireless sensing data for…

Signal Processing · Electrical Eng. & Systems 2023-03-28 Hongyang Du , Jiacheng Wang , Dusit Niyato , Jiawen Kang , Zehui Xiong , Junshan Zhang , Xuemin , Shen

Generally, current image manipulation detection models are simply built on manipulation traces. However, we argue that those models achieve sub-optimal detection performance as it tends to: 1) distinguish the manipulation traces from a lot…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Wenyan Pan , Zhili Zhou , Guangcan Liu , Teng Huang , Hongyang Yan , Q. M. Jonathan Wu

In graph self-supervised learning, masked autoencoders (MAE) and contrastive learning (CL) are two prominent paradigms. MAE focuses on reconstructing masked elements, while CL maximizes similarity between augmented graph views. Recent…

Machine Learning · Computer Science 2025-06-10 Di Lin , Wanjing Ren , Xuanbin Li , Rui Zhang

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…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Jiabo Huang , Shaogang Gong

Session-based recommendation, which aims to predict the next item of users' interest as per an existing sequence interaction of items, has attracted growing applications of Contrastive Learning (CL) with improved user and item…

Information Retrieval · Computer Science 2023-12-21 Zhengxiang Shi , Xi Wang , Aldo Lipani

In this work, a self-attention based conditional generative adversarial network (SA-cGAN) framework for the sixth generation (6G) semantic communication system is proposed, explicitly designed to balance the trade-off between distortion…

Signal Processing · Electrical Eng. & Systems 2026-04-01 Faizan Shafi , Rahul Jashvantbhai Pandya , Christo Kurisummoottil Thomas , Sridhar Iyer

Collaborative learning enables distributed clients to learn a shared model for prediction while keeping the training data local on each client. However, existing collaborative learning methods require fully-labeled data for training, which…

Machine Learning · Computer Science 2022-04-26 Yawen Wu , Zhepeng Wang , Dewen Zeng , Meng Li , Yiyu Shi , Jingtong Hu

Semantic communication focuses on conveying the task-relevant meaning rather than exact bitwise recovery. For image transmission with a generative receiver, relying only on text descriptions can be insufficient to preserve instance-specific…

Information Theory · Computer Science 2026-01-27 Xuesong Wang , Xinyan Xie , Mo Li , Zhaoqian Liu

Recently, both Contrastive Learning (CL) and Mask Image Modeling (MIM) demonstrate that self-supervision is powerful to learn good representations. However, naively combining them is far from success. In this paper, we start by making the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Ziyu Jiang , Yinpeng Chen , Mengchen Liu , Dongdong Chen , Xiyang Dai , Lu Yuan , Zicheng Liu , Zhangyang Wang

Due to high data demands of current methods, attention to zero-shot cross-lingual spoken language understanding (SLU) has grown, as such approaches greatly reduce human annotation effort. However, existing models solely rely on shared…

Computation and Language · Computer Science 2022-04-19 Libo Qin , Qiguang Chen , Tianbao Xie , Qixin Li , Jian-Guang Lou , Wanxiang Che , Min-Yen Kan

We address the problem of semantic correspondence, that is, establishing a dense flow field between images depicting different instances of the same object or scene category. We propose to use images annotated with binary foreground masks…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Junghyup Lee , Dohyung Kim , Wonkyung Lee , Jean Ponce , Bumsub Ham

Humans have a unique ability to learn new representations from just a handful of examples with little to no supervision. Deep learning models, however, require an abundance of data and supervision to perform at a satisfactory level.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Ojas Kishorkumar Shirekar , Anuj Singh , Hadi Jamali-Rad

Semantic overlap among land-cover categories, highly imbalanced label distributions, and complex inter-class co-occurrence patterns constitute significant challenges for multi-label remote-sensing image retrieval. In this article,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Amna Amir , Erchan Aptoula

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…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Tao Wu , Tie Luo , Donald Wunsch

Efficient image transmission is essential for seamless communication and collaboration within the visually-driven digital landscape. To achieve low latency and high-quality image reconstruction over a bandwidth-constrained noisy wireless…

Image and Video Processing · Electrical Eng. & Systems 2025-03-03 Nan Li , Yansha Deng

Despite its empirical success, the theoretical foundations of self-supervised contrastive learning (CL) are not yet fully established. In this work, we address this gap by showing that standard CL objectives implicitly approximate a…

Machine Learning · Computer Science 2025-11-12 Achleshwar Luthra , Tianbao Yang , Tomer Galanti

Achieving reliable communication has long been a fundamental challenge in networked systems. Semantic Error Correction (SEC) leverages the semantic understanding capabilities of language models (LMs) to perform application-layer error…

Information Theory · Computer Science 2026-03-30 Yirun Wang , Yuyang Du , Soung Chang Liew , Yuchen Pan , Feifan Zhang , Lihao Zhang

Contrastive learning (CL)-based self-supervised learning models learn visual representations in a pairwise manner. Although the prevailing CL model has achieved great progress, in this paper, we uncover an ever-overlooked phenomenon: When…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Wenwen Qiang , Jiangmeng Li , Changwen Zheng , Bing Su , Hui Xiong