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Diffusion Models (DMs) have demonstrated state-of-the-art performance in content generation without requiring adversarial training. These models are trained using a two-step process. First, a forward - diffusion - process gradually adds…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Anwaar Ulhaq , Naveed Akhtar

Diffusion models have demonstrated their powerful generative capability in many tasks, with great potential to serve as a paradigm for offline reinforcement learning. However, the quality of the diffusion model is limited by the…

Machine Learning · Computer Science 2023-05-15 Zhixuan Liang , Yao Mu , Mingyu Ding , Fei Ni , Masayoshi Tomizuka , Ping Luo

Massive multiple-input multiple-output (MIMO) offers significant advantages in spectral and energy efficiencies, positioning it as a cornerstone technology of fifth-generation (5G) wireless communication systems and a promising solution for…

Information Theory · Computer Science 2026-03-10 Zhenzhou Jin , Li You , Huibin Zhou , Yuanshuo Wang , Xiaofeng Liu , Xinrui Gong , Xiqi Gao , Derrick Wing Kwan Ng , Xiang-Gen Xia

In this paper we propose a distributed iterated hard thresholding algorithm termed DiFIGHT over a network that is built on the diffusion mechanism and also propose a modification of the proposed algorithm, termed MoDiFIGHT, that has low…

Information Theory · Computer Science 2020-08-17 Samrat Mukhopadhyay , Mrityunjoy Chakraborty

Many existing adversarial attacks generate $L_p$-norm perturbations on image RGB space. Despite some achievements in transferability and attack success rate, the crafted adversarial examples are easily perceived by human eyes. Towards…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Jianqi Chen , Hao Chen , Keyan Chen , Yilan Zhang , Zhengxia Zou , Zhenwei Shi

Source localization is a representative inverse inference task in information propagation, aiming to identify the source node or node set that triggers the propagation results based on the observed information. A primary challenge is…

Social and Information Networks · Computer Science 2026-05-06 Yansong Wang , Qisen Chai , Longlong Lin , Tao Jia

Domain Generalized Semantic Segmentation (DGSS) is a critical yet challenging task, as domain shifts in unseen environments can severely compromise model performance. While recent studies enhance feature alignment by projecting features…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 I-Hsiang Chen , Hua-En Chang , Wei-Ting Chen , Jenq-Neng Hwang , Sy-Yen Kuo

Diffusion-based purification defenses leverage diffusion models to remove crafted perturbations of adversarial examples and achieve state-of-the-art robustness. Recent studies show that even advanced attacks cannot break such defenses…

Cryptography and Security · Computer Science 2024-01-05 Mintong Kang , Dawn Song , Bo Li

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

Early detection through imaging and accurate diagnosis is crucial in mitigating the high mortality rate associated with breast cancer. However, locating tumors from low-resolution and high-noise medical images is extremely challenging.…

Image and Video Processing · Electrical Eng. & Systems 2024-10-24 Feiyan Feng , Tianyu Liu , Hong Wang , Jun Zhao , Wei Li , Yanshen Sun

Recent studies show that diffusion models (DMs) are vulnerable to backdoor attacks. Existing backdoor attacks impose unconcealed triggers (e.g., a gray box and eyeglasses) that contain evident patterns, rendering remarkable attack effects…

Cryptography and Security · Computer Science 2025-03-03 Yuning Han , Bingyin Zhao , Rui Chu , Feng Luo , Biplab Sikdar , Yingjie Lao

We present Prompt Diffusion, a framework for enabling in-context learning in diffusion-based generative models. Given a pair of task-specific example images, such as depth from/to image and scribble from/to image, and a text guidance, our…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Zhendong Wang , Yifan Jiang , Yadong Lu , Yelong Shen , Pengcheng He , Weizhu Chen , Zhangyang Wang , Mingyuan Zhou

Diffusion probabilistic models have been recently used in a variety of tasks, including speech enhancement and synthesis. As a generative approach, diffusion models have been shown to be especially suitable for imputation problems, where…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-05 Tal Peer , Simon Welker , Timo Gerkmann

Digital Terrain Models (DTMs) represent the bare-earth elevation and are important in numerous geospatial applications. Such data models cannot be directly measured by sensors and are typically generated from Digital Surface Models (DSMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Oussema Dhaouadi , Johannes Meier , Jacques Kaiser , Daniel Cremers

This paper focuses on wireless multiple-input multiple-output (MIMO)-orthogonal frequency division multiplex (OFDM) receivers. Traditional wireless receivers have relied on mathematical modeling and Bayesian inference, achieving remarkable…

Signal Processing · Electrical Eng. & Systems 2026-01-30 Yuzhi Yang , Omar Alhussein , Atefeh Arani , Zhaoyang Zhang , Mérouane Debbah

Large-scale, pre-trained Text-to-Image (T2I) diffusion models have gained significant popularity in image generation tasks and have shown unexpected potential in image Super-Resolution (SR). However, most existing T2I diffusion models are…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Brian B. Moser , Stanislav Frolov , Tobias C. Nauen , Federico Raue , Andreas Dengel

While diffusion models demonstrate strong generative capabilities in image restoration (IR) tasks, their complex architectures and iterative processes limit their practical application compared to mainstream reconstruction-based general…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Xin Lu , Xueyang Fu , Jie Xiao , Zihao Fan , Yurui Zhu , Zheng-Jun Zha

Object pose estimation from a single view remains a challenging problem. In particular, partial observability, occlusions, and object symmetries eventually result in pose ambiguity. To account for this multimodality, this work proposes…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Christian Möller , Niklas Funk , Jan Peters

Diffusion models are generative models with impressive text-to-image synthesis capabilities and have spurred a new wave of creative methods for classical machine learning tasks. However, the best way to harness the perceptual knowledge of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Neehar Kondapaneni , Markus Marks , Manuel Knott , Rogerio Guimaraes , Pietro Perona

Recent progress in personalized image generation using diffusion models has been significant. However, development in the area of open-domain and non-fine-tuning personalized image generation is proceeding rather slowly. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Jian Ma , Junhao Liang , Chen Chen , Haonan Lu
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