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Semantic communications have shown its great potential to improve the transmission reliability, especially in the low signal-to-noise regime. However, resource allocation for semantic communications still remains unexplored, which is a…

Signal Processing · Electrical Eng. & Systems 2023-05-12 Lei Yan , Zhijin Qin , Rui Zhang , Yongzhao Li , Geoffrey Ye Li

Over-the-air computation (AirComp) is a promising technology that is capable of achieving fast data aggregation in Internet of Things (IoT) networks. The mean-squared error (MSE) performance of AirComp is bottlenecked by the unfavorable…

Information Theory · Computer Science 2020-09-17 Wenzhi Fang , Min Fu , Kunlun Wang , Yuanming Shi , Yong Zhou

Integrated Communications and Sensing (ICS) has recently emerged as an enabling technology for ubiquitous sensing and IoT applications. For ICS application to Autonomous Vehicles (AVs), optimizing the waveform structure is one of the most…

Networking and Internet Architecture · Computer Science 2022-11-01 Nam H. Chu , Diep N. Nguyen , Dinh Thai Hoang , Quoc-Viet Pham , Khoa T. Phan , Won-Joo Hwang , Eryk Dutkiewicz

Adaptive importance sampling for stochastic optimization is a promising approach that offers improved convergence through variance reduction. In this work, we propose a new framework for variance reduction that enables the use of mixtures…

Machine Learning · Computer Science 2019-04-01 Zalán Borsos , Sebastian Curi , Kfir Y. Levy , Andreas Krause

Machine learning methods provide a general framework for automatically finding and representing the essential characteristics of simulation data. This task is particularly crucial in enhanced sampling simulations. There we seek a few…

Chemical Physics · Physics 2021-07-07 Jakub Rydzewski , Omar Valsson

The vanilla self-attention mechanism inherently relies on pre-defined and steadfast computational dimensions. Such inflexibility restricts it from possessing context-oriented generalization that can bring more contextual cues and global…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Rui Yang , Hailong Ma , Jie Wu , Yansong Tang , Xuefeng Xiao , Min Zheng , Xiu Li

Ultra-high-resolution streaming and emerging immersive services are driving rapidly increasing wireless video traffic. However, perceptually pleasing video transmission over bandwidth-limited and latency-constrained wireless links remains…

Image and Video Processing · Electrical Eng. & Systems 2026-05-20 Yinhuan Huang , Zhijin Qin

The integration of intelligent reflecting surface (IRS) into over-the-air computation (AirComp) is an effective solution for reducing the computational mean squared error (MSE) via its high passive beamforming gain. Prior works on IRS aided…

Information Theory · Computer Science 2024-05-10 Guangji Chen , Jun Li , Qingqing Wu , Meng Hua , Kaitao Meng , Zhonghao Lyu

Semantic communication enhances transmission efficiency by conveying semantic information rather than raw input symbol sequences. Task-oriented semantic communication is a variant that tries to retains only task-specific information, thus…

Cryptography and Security · Computer Science 2025-10-06 Xuesong Wang , Mo Li , Xingyan Shi , Zhaoqian Liu , Shenghao Yang

Split learning (SL) transfers most of the training workload to the server, which alleviates computational burden on client devices. However, the transmission of intermediate feature representations, referred to as smashed data, incurs…

Machine Learning · Computer Science 2026-03-19 Jialei Tan , Zheng Lin , Xiangming Cai , Ruoxi Zhu , Zihan Fang , Pingping Chen , Wei Ni

This paper proposes a multi-task learning network with phoneme-aware and channel-wise attentive learning strategies for text-dependent Speaker Verification (SV). In the proposed structure, the frame-level multi-task learning along with the…

Sound · Computer Science 2021-06-28 Yan Liu , Zheng Li , Lin Li , Qingyang Hong

Most current Deep Learning-based Semantic Communication (DeepSC) systems are designed and trained exclusively for particular single-channel conditions, which restricts their adaptability and overall bandwidth utilization. To address this,…

Networking and Internet Architecture · Computer Science 2024-10-03 Yuna Yan , Lixin Li , Xin Zhang , Wensheng Lin , Wenchi Cheng , Zhu Han

Semantic communication (SemCom) is an emerging paradigm that leverages semantic-level understanding to improve communication efficiency, particularly in resource-constrained scenarios. However, existing SemCom systems often overlook diverse…

Networking and Internet Architecture · Computer Science 2025-06-25 Xinyi Lin , Peizheng Li , Adnan Aijaz

In this paper, the problem of semantic-based efficient image transmission is studied over the Internet of Vehicles (IoV). In the considered model, a vehicle shares massive amount of visual data perceived by its visual sensors to assist…

Networking and Internet Architecture · Computer Science 2022-10-12 Qiang Pan , Haonan Tong , Jie Lv , Tao Luo , Zhilong Zhang , Changchuan Yin , Jianfeng Li

With the success of autoregressive learning in large language models, it has become a dominant approach for text-to-image generation, offering high efficiency and visual quality. However, invisible watermarking for visual autoregressive…

Multimedia · Computer Science 2025-03-17 Ziyi Wang , Songbai Tan , Gang Xu , Xuerui Qiu , Hongbin Xu , Xin Meng , Ming Li , Fei Richard Yu

Learning-based lossy image compression usually involves the joint optimization of rate-distortion performance. Most existing methods adopt spatially invariant bit length allocation and incorporate discrete entropy approximation to constrain…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Mu Li , Wangmeng Zuo , Shuhang Gu , Jane You , David Zhang

Identifying robust and accurate correspondences across images is a fundamental problem in computer vision that enables various downstream tasks. Recent semi-dense matching methods emphasize the effectiveness of fusing relevant cross-view…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Hongkai Chen , Zixin Luo , Yurun Tian , Xuyang Bai , Ziyu Wang , Lei Zhou , Mingmin Zhen , Tian Fang , David McKinnon , Yanghai Tsin , Long Quan

Broadband frequency-selective fading channels usually have the inherent sparse nature. By exploiting the sparsity, adaptive sparse channel estimation (ASCE) methods, e.g., reweighted L1-norm least mean square (RL1-LMS), could bring a…

Information Theory · Computer Science 2015-03-04 Tingping Zhang , Jingpei Dan , Guan Gui

Incorporating multi-scale features in fully convolutional neural networks (FCNs) has been a key element to achieving state-of-the-art performance on semantic image segmentation. One common way to extract multi-scale features is to feed…

Computer Vision and Pattern Recognition · Computer Science 2016-06-03 Liang-Chieh Chen , Yi Yang , Jiang Wang , Wei Xu , Alan L. Yuille

Recently, semantic communications have drawn great attention as the groundbreaking concept surpasses the limited capacity of Shannon's theory. Specifically, semantic communications probably become crucial in realizing visual tasks that…

Networking and Internet Architecture · Computer Science 2025-10-23 Jeonghun Park , Sung Whan Yoon