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In the classic wiretap model, Alice wishes to reliably communicate to Bob without being overheard by Eve who is eavesdropping over a degraded channel. Systems for achieving that physical layer security often rely on an error correction code…

Information Theory · Computer Science 2023-04-18 Muriel Médard , Ken R. Duffy

Efficient localization and high-quality rendering in large-scale scenes remain a significant challenge due to the computational cost involved. While Scene Coordinate Regression (SCR) methods perform well in small-scale localization, they…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Mingkai Liu , Dikai Fan , Haohua Que , Haojia Gao , Xiao Liu , Shuxue Peng , Meixia Lin , Shengyu Gu , Ruicong Ye , Wanli Qiu , Handong Yao , Ruopeng Zhang , Xianliang Huang

Packet losses are common events in today's networks. They usually result in longer delivery times for application data since retransmissions are the de facto technique to recover from such losses. Retransmissions is a good strategy for many…

Information Theory · Computer Science 2022-08-17 François Michel , Alejandro Cohen , Derya Malak , Quentin De Coninck , Muriel Médard , Olivier Bonaventure

Scalable coding, which can adapt to channel bandwidth variation, performs well in today's complex network environment. However, most existing scalable compression methods face two challenges: reduced compression performance and insufficient…

Image and Video Processing · Electrical Eng. & Systems 2024-12-03 Yongqi Zhai , Yi Ma , Luyang Tang , Wei Jiang , Ronggang Wang

The existing communication framework mainly aims at accurate reconstruction of source signals to ensure reliable transmission. However, this signal-level fidelity-oriented design often incurs high communication overhead and system…

Networking and Internet Architecture · Computer Science 2026-02-10 Junjie Wu , Tianrui Li , Yi Zhang , Ziyuan Yang

This paper focuses on the task of quality enhancement for compressed videos. Although deep network-based video restorers achieve impressive progress, most of the existing methods lack a structured design to optimally leverage the priors…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Hanchi Sun , Xiaohong Liu , Xinyang Jiang , Yifei Shen , Dongsheng Li , Xiongkuo Min , Guangtao Zhai

Existing reasoning data curation pipelines score whole samples, treating every intermediate step as equally valuable. In reality, steps within a trace contribute very unevenly, and selecting reasoning data well requires assessing them…

Artificial Intelligence · Computer Science 2026-05-14 Junjie Li , Ziao Wang , NingXuan Ma , Jianghong Ma , Xiaofeng Zhang

Conventional techniques for compression and encryption are frequently laborious and resource-intensive, rendering them inappropriate for real-time applications. A plethora of research has been presented in the current literature to address…

Cryptography and Security · Computer Science 2026-05-19 Shiladitya Bhattacharjee , Subha Bhattacharya , Arnab Chatterjee , Sulabh Bansal , Saurabh Shukla

Whether a video can be compressed at an extreme compression rate as low as 0.01%? To this end, we achieve the compression rate as 0.02% at some cases by introducing Generative Video Compression (GVC), a new framework that redefines the…

Image and Video Processing · Electrical Eng. & Systems 2026-02-03 Xiangyu Chen , Jixiang Luo , Jingyu Xu , Fangqiu Yi , Chi Zhang , Xuelong Li

Video generation has recently made striking visual progress, but maintaining coherent object motion and interactions remains difficult. We trace two practical bottlenecks: (i) human-provided motion hints (e.g., small 2D maps) often collapse…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Zhifei Chen , Tianshuo Xu , Leyi Wu , Luozhou Wang , Dongyu Yan , Zihan You , Wenting Luo , Guo Zhang , Yingcong Chen

Video compression is a critical component of Internet video delivery. Recent work has shown that deep learning techniques can rival or outperform human-designed algorithms, but these methods are significantly less compute and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Mehrdad Khani , Vibhaalakshmi Sivaraman , Mohammad Alizadeh

Although graph-based learning has attracted a lot of attention, graph representation learning is still a challenging task whose resolution may impact key application fields such as chemistry or biology. To this end, we introduce GRALE, a…

Machine Learning · Computer Science 2025-10-21 Paul Krzakala , Gabriel Melo , Charlotte Laclau , Florence d'Alché-Buc , Rémi Flamary

Nowadays, real-time video communication over the internet through video conferencing applications has become an invaluable tool in everyone's professional and personal life. This trend underlines the need for video coding algorithms that…

Multimedia · Computer Science 2015-10-05 Stamos Katsigiannis , Georgios Papaioannou , Dimitris Maroulis

Manifold amount of video data gets generated every minute as we read this document, ranging from surveillance to broadcasting purposes. There are two roadblocks that restrain us from using this data as such, first being the storage which…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Sathyaprakash Narayanan , Yeshwanth Bethi , Chetan Singh Thakur

Web accessible content stored in obscure, unpopular or obsolete formats represents a significant problem for digital preservation. The file formats that encode web content represent the implicit and explicit choices of web site maintainers…

Digital Libraries · Computer Science 2011-11-09 Daniel S. Swaney , Frank McCown , Michael L. Nelson

Despite the widespread adoption of vision sensors in edge applications, such as surveillance, the transmission of video data consumes substantial spectrum resources. Semantic communication (SC) offers a solution by extracting and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Yubo Peng , Luping Xiang , Kun Yang , Kezhi Wang , Merouane Debbah

The rapid growth of graph data creates significant scalability challenges as most graph algorithms scale quadratically with size. To mitigate these issues, Graph Condensation (GC) methods have been proposed to learn a small graph from a…

Machine Learning · Computer Science 2025-08-06 Shengbo Gong , Mohammad Hashemi , Juntong Ni , Carl Yang , Wei Jin

Volumetric videoconferencing enables immersive six Degrees of Freedom interactions by jointly transmitting visual appearance and 3D geometry. However, delivering volumetric video over today's networks remains challenging due to high…

Networking and Internet Architecture · Computer Science 2026-05-01 Ankur Aditya , Diptyaroop Maji , Lingdong Wang , Bhavya Ramakrishna , Ramesh Sitaraman , Prashant Shenoy

Geostationary Earth Orbit (GEO) satellite communication demonstrates significant advantages in emergency short burst data services. However, unstable satellite networks, particularly those with frequent packet loss, present a severe…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Hongwei Sha , Muchen Dong , Quanyou Luo , Ming Lu , Hao Chen , Zhan Ma

Prevailing methods for training Large Language Models (LLMs) as text encoders rely on contrastive losses that treat the model as a black box function, discarding its generative and reasoning capabilities in favor of static embeddings. We…

Computation and Language · Computer Science 2025-10-07 Jiashuo Sun , Shixuan Liu , Zhaochen Su , Xianrui Zhong , Pengcheng Jiang , Bowen Jin , Peiran Li , Weijia Shi , Jiawei Han