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相关论文: Diffusion-aided Task-oriented Semantic Communicati…

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Semantic communication has gained significant attention recently due to its advantages in achieving higher transmission efficiency by focusing on semantic information instead of bit-level information. However, current AI-based semantic…

信号处理 · 电气工程与系统科学 2023-12-04 Shuyi Chen , Yingzhe Hui , Yifan Qin , Yueyi Yuan , Weixiao Meng , Xuewen Luo , Hsiao-Hwa Chen

Concept erasure in Text-To-Image (T2I) diffusion models is vital for safe content generation, but existing inference-time methods face significant limitations. Feature-correction approaches often cause uncontrolled over-correction, while…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Qinghui Gong

In this paper, a novel covert semantic communication framework is investigated. Within this framework, a server extracts and transmits the semantic information, i.e., the meaning of image data, to a user over several time slots. An attacker…

人工智能 · 计算机科学 2025-08-12 Wenjing Zhang , Ye Hu , Tao Luo , Zhilong Zhang , Mingzhe Chen

Recent advancements in text-guided diffusion models have unlocked powerful image manipulation capabilities, yet balancing reconstruction fidelity and editability for real images remains a significant challenge. In this work, we introduce…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Yangyang Xu , Wenqi Shao , Yong Du , Haiming Zhu , Yang Zhou , Ping Luo , Shengfeng He

Diffusion models demonstrate impressive image generation performance with text guidance. Inspired by the learning process of diffusion, existing images can be edited according to text by DDIM inversion. However, the vanilla DDIM inversion…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Qi Qian , Haiyang Xu , Ming Yan , Juhua Hu

Semantic communications are expected to improve the transmission efficiency in Internet of Things (IoT) networks. However, the distributed nature of networks and heterogeneity of devices challenge the secure utilization of semantic…

信号处理 · 电气工程与系统科学 2024-12-12 Weihao Zeng , Xinyu Xu , Qianyun Zhang , Jiting Shi , Zhenyu Guan , Shufeng Li , Zhijin Qin

Due to their flexibility and dynamic coverage capabilities, Unmanned Aerial Vehicles (UAVs) have emerged as vital platforms for emergency communication in disaster-stricken areas. However, the complex channel conditions in high-speed mobile…

信息检索 · 计算机科学 2025-04-11 Kexin Zhang , Xin Zhang , Lixin Li , Wensheng Lin , Wenchi Cheng , Qinghe Du

Recently, there has been an increased interest in the practical problem of learning multiple dense scene understanding tasks from partially annotated data, where each training sample is only labeled for a subset of the tasks. The missing of…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Hanrong Ye , Dan Xu

Diffusion models have achieved impressive success in generating photorealistic images, but challenges remain in ensuring precise semantic alignment with input prompts. Optimizing the initial noisy latent offers a more efficient alternative…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Boming Miao , Chunxiao Li , Xiaoxiao Wang , Andi Zhang , Rui Sun , Zizhe Wang , Yao Zhu

In recent years, semantic communication has been a popular research topic for its superiority in communication efficiency. As semantic communication relies on deep learning to extract meaning from raw messages, it is vulnerable to attacks…

信息论 · 计算机科学 2023-08-09 Yuhao Chen , Qianqian Yang , Zhiguo Shi , Jiming Chen

Text-to-image generation using diffusion models has gained increasing popularity due to their ability to produce high-quality, realistic images based on text prompts. However, efficiently serving these models is challenging due to their…

分布式、并行与集群计算 · 计算机科学 2025-05-13 Sohaib Ahmad , Qizheng Yang , Haoliang Wang , Ramesh K. Sitaraman , Hui Guan

Existing deep learning-enabled semantic communication systems often rely on shared background knowledge between the transmitter and receiver that includes empirical data and their associated semantic information. In practice, the semantic…

信息论 · 计算机科学 2022-10-19 Hongwei Zhang , Shuo Shao , Meixia Tao , Xiaoyan Bi , Khaled B. Letaief

Task-oriented communication focuses on extracting and transmitting only the information relevant to specific tasks, effectively minimizing communication overhead. Most existing methods prioritize reducing this overhead during inference,…

信息论 · 计算机科学 2025-02-26 Hongru Li , Hang Zhao , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Semantic communications, aiming at ensuring the successful delivery of the meaning of information, are expected to be one of the potential techniques for the next generation communications. However, the knowledge forming and synchronizing…

图像与视频处理 · 电气工程与系统科学 2024-01-17 Yuan Zheng , Fengyu Wang , Wenjun Xu , Miao Pan , Ping Zhang

Diffusion models have gained prominence in generating high-quality sequences of text. Nevertheless, current approaches predominantly represent discrete text within a continuous diffusion space, which incurs substantial computational…

机器学习 · 计算机科学 2023-10-17 Shansan Gong , Mukai Li , Jiangtao Feng , Zhiyong Wu , Lingpeng Kong

Semantic communication (SemCom) improves transmission efficiency by focusing on task-relevant information. However, transmitting semantic-rich data over insecure channels introduces privacy risks. This paper proposes a novel SemCom…

密码学与安全 · 计算机科学 2025-05-07 Weixuan Chen , Shunpu Tang , Qianqian Yang , Zhiguo Shi , Dusit Niyato

We propose self-diffusion, a novel framework for solving inverse problems without relying on pretrained generative models. Traditional diffusion-based approaches require training a model on a clean dataset to learn to reverse the forward…

机器学习 · 计算机科学 2025-12-09 Guanxiong Luo , Shoujin Huang , Yanlong Yang

Semantic communication (SemCom) systems aim to learn the mapping from low-dimensional semantics to high-dimensional ground-truth. While this is more akin to a "domain translation" problem, existing frameworks typically emphasize on…

机器学习 · 计算机科学 2025-09-29 Mehdi Letafati , Samad Ali , Matti Latva-aho

Text-to-image (T2I) diffusion models have the ability to build high-quality pictures from text prompts, but they pose safety concerns because they can generate offensive or disturbing imagery when provided with harmful inputs. Existing…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Chi Zhang , Changjia Zhu , Xiaowen Li , Yao Liu , Zhuo Lu

Semantic communication, as a promising technology, has emerged to break through the Shannon limit, which is envisioned as the key enabler and fundamental paradigm for future 6G networks and applications, e.g., smart healthcare. In this…

图像与视频处理 · 电气工程与系统科学 2022-09-27 Jiawen Kang , Hongyang Du , Zonghang Li , Zehui Xiong , Shiyao Ma , Dusit Niyato , Yuan Li