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Window-based transformers have demonstrated outstanding performance in super-resolution tasks due to their adaptive modeling capabilities through local self-attention (SA). However, they exhibit higher computational complexity and inference…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Zhenyu Hu , Wanjie Sun

Deep generative models have emerged as promising tools for detecting arbitrary anomalies in data, dispensing with the necessity for manual labelling. Recently, autoregressive transformers have achieved state-of-the-art performance for…

Distributed learning paradigms, such as federated and decentralized learning, allow for the coordination of models across a collection of agents, and without the need to exchange raw data. Instead, agents compute model updates locally based…

机器学习 · 计算机科学 2022-04-04 Stefan Vlaski , Christian Schroth , Michael Muma , Abdelhak M. Zoubir

Diffusion models have shown promising results in speech enhancement, using a task-adapted diffusion process for the conditional generation of clean speech given a noisy mixture. However, at test time, the neural network used for score…

音频与语音处理 · 电气工程与系统科学 2024-01-17 Bunlong Lay , Jean-Marie Lemercier , Julius Richter , Timo Gerkmann

Diffusion-based text-to-image (T2I) models have made remarkable progress in generating photorealistic and semantically rich images. However, when the target concepts lie in low-density regions of the training distribution, these models…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Kwanyoung Lee , SeungJu Cha , Yebin Ahn , Hyunwoo Oh , Sungho Koh , Dong-Jin Kim

Diffusion models have gained attention for their ability to represent complex distributions and incorporate uncertainty, making them ideal for robust predictions in the presence of noisy or incomplete data. In this study, we develop and…

机器学习 · 计算机科学 2024-11-05 Yilin Zhuang , Sibo Cheng , Karthik Duraisamy

In this paper, we study communication efficient distributed algorithms for distributionally robust federated learning via periodic averaging with adaptive sampling. In contrast to standard empirical risk minimization, due to the minimax…

机器学习 · 计算机科学 2021-02-26 Yuyang Deng , Mohammad Mahdi Kamani , Mehrdad Mahdavi

In computer vision, traditional ensemble learning methods exhibit either a low training efficiency or the limited performance to enhance the reliability of deep neural networks. In this paper, we propose a lightweight, loss-function-free,…

计算机视觉与模式识别 · 计算机科学 2024-08-09 Jiaqi Wu , Junbiao Pang , Qingming Huang

Data augmentation (DA) can significantly strengthen the electroencephalogram (EEG)-based seizure prediction methods. However, existing DA approaches are just the linear transformations of original data and cannot explore the feature space…

信号处理 · 电气工程与系统科学 2024-12-10 Kai Shu , Le Wu , Yuchang Zhao , Aiping Liu , Ruobing Qian , Xun Chen

Ensemble learning leverages multiple models (i.e., weak learners) on a common machine learning task to enhance prediction performance. Basic ensembling approaches average the weak learners outputs, while more sophisticated ones stack a…

机器学习 · 计算机科学 2024-09-20 Mathieu Vu , Emilie Chouzenoux , Ismail Ben Ayed , Jean-Christophe Pesquet

Text-to-image diffusion models have shown great success in generating high-quality text-guided images. Yet, these models may still fail to semantically align generated images with the provided text prompts, leading to problems like…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Yasi Zhang , Peiyu Yu , Ying Nian Wu

Geological parameterization entails the representation of a geomodel using a small set of latent variables and a mapping from these variables to grid-block properties such as porosity and permeability. Parameterization is useful for data…

计算机视觉与模式识别 · 计算机科学 2026-03-16 Guido Di Federico , Louis J. Durlofsky

Beyond high-fidelity image synthesis, diffusion models have recently exhibited promising results in dense visual perception tasks. However, most existing work treats diffusion models as a standalone component for perception tasks, employing…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Shuhong Zheng , Zhipeng Bao , Ruoyu Zhao , Martial Hebert , Yu-Xiong Wang

Federated Learning (FL) has emerged as a promising approach for privacy-preserving model training across decentralized devices. However, it faces challenges such as statistical heterogeneity and susceptibility to adversarial attacks, which…

机器学习 · 计算机科学 2024-12-13 Jialuo He , Wei Chen , Xiaojin Zhang

While diffusion-based generative models have made significant strides in visual content creation, conventional approaches face computational challenges, especially for high-resolution images, as they denoise the entire image from noisy…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Haohang Xu , Longyu Chen , Yichen Zhang , Shuangrui Ding , Zhipeng Zhang

The scarcity of annotated surgical data poses a significant challenge for developing deep learning systems in computer-assisted interventions. While diffusion models can synthesize realistic images, they often suffer from data memorization,…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Danush Kumar Venkatesh , Stefanie Speidel

Generating high-quality labeled image datasets is crucial for training accurate and robust machine learning models in the field of computer vision. However, the process of manually labeling real images is often time-consuming and costly. To…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Michael Shenoda , Edward Kim

Federated learning (FL) is a promising distributed paradigm, eliminating the need for data sharing but facing challenges from data heterogeneity. Personalized parameter generation through a hypernetwork proves effective, yet existing…

计算机视觉与模式识别 · 计算机科学 2023-11-22 Ziyuan Yang , Zerui Shao , Huijie Huangfu , Hui Yu , Andrew Beng Jin Teoh , Xiaoxiao Li , Hongming Shan , Yi Zhang

Super-resolution algorithms often struggle with images from surveillance environments due to adverse conditions such as unknown degradation, variations in pose, irregular illumination, and occlusions. However, acquiring multiple images,…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Marcelo dos Santos , Rayson Laroca , Rafael O. Ribeiro , João C. Neves , David Menotti

Deep convolutional neural network (CNN) based models are vulnerable to the adversarial attacks. One of the possible reasons is that the embedding space of CNN based model is sparse, resulting in a large space for the generation of…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Haozhe Liu , Haoqin Ji , Yuexiang Li , Nanjun He , Haoqian Wu , Feng Liu , Linlin Shen , Yefeng Zheng
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