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Diffusion models (DMs) have become dominant in visual generation but suffer performance drop when tested on resolutions that differ from the training scale, whether lower or higher. In fact, the key challenge in generating variable-scale…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Guohui Zhang , Jiangtong Tan , Linjiang Huang , Zhonghang Yuan , Mingde Yao , Jie Huang , Feng Zhao

We consider the problem of learning from distributed data in the agnostic setting, i.e., in the presence of arbitrary forms of noise. Our main contribution is a general distributed boosting-based procedure for learning an arbitrary concept…

机器学习 · 计算机科学 2016-11-21 Shang-Tse Chen , Maria-Florina Balcan , Duen Horng Chau

Ambient diffusion is a recently proposed framework for training diffusion models using corrupted data. Both Ambient Diffusion and alternative SURE-based approaches for learning diffusion models from corrupted data resort to approximations…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Giannis Daras , Alexandros G. Dimakis , Constantinos Daskalakis

We present a dynamic model in which the weights are conditioned on an input sample x and are learned to match those that would be obtained by finetuning a base model on x and its label y. This mapping between an input sample and network…

机器学习 · 计算机科学 2023-06-12 Shahar Lutati , Lior Wolf

Label noise is a critical factor that degrades the generalization performance of deep neural networks, thus leading to severe issues in real-world problems. Existing studies have employed strategies based on either loss or uncertainty to…

机器学习 · 计算机科学 2020-08-17 Wonyoung Shin , Jung-Woo Ha , Shengzhe Li , Yongwoo Cho , Hoyean Song , Sunyoung Kwon

We study a discrete denoising diffusion framework that integrates a sample-efficient estimator of single-site conditionals with round-robin noising and denoising dynamics for generative modeling over discrete state spaces. Rather than…

机器学习 · 计算机科学 2026-03-02 Karthik Elamvazhuthi , Abhijith Jayakumar , Andrey Y. Lokhov

It has been shown that injecting noise into the neural network weights during the training process leads to a better generalization of the resulting model. Noise injection in the distributed setup is a straightforward technique and it…

机器学习 · 计算机科学 2018-10-01 Linara Adilova , Nathalie Paul , Peter Schlicht

Denoising diffusion models have found applications in image segmentation by generating segmented masks conditioned on images. Existing studies predominantly focus on adjusting model architecture or improving inference, such as test-time…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Yunguan Fu , Yiwen Li , Shaheer U Saeed , Matthew J Clarkson , Yipeng Hu

Diffusion models generate samples by iteratively denoising a Gaussian prior, traversing a sequence of noise levels that, in every published sampler, decreases monotonically. Six years of intensive work has refined nearly every aspect of…

机器学习 · 计算机科学 2026-05-13 Muhammad Haris Khan

Diffusion- and flow-based models usually allocate compute uniformly across space, updating all patches with the same timestep and number of function evaluations. While convenient, this ignores the heterogeneity of natural images: some…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Johannes Schusterbauer , Ming Gui , Yusong Li , Pingchuan Ma , Felix Krause , Björn Ommer

Cross-dose denoising for low-dose positron emission tomography (LDPET) has been proposed to address the limited generalization of models trained at a single noise level. However, neural networks trained on a specific dose level often fail…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Yichao Liu , Zongru Shao , Yueyang Teng , Junwen Guo

Randomized smoothing is a well-established method for achieving certified robustness against l2-adversarial perturbations. By incorporating a denoiser before the base classifier, pretrained classifiers can be seamlessly integrated into…

机器学习 · 计算机科学 2025-09-16 Ali Hedayatnia , Mostafa Tavassolipour , Babak Nadjar Araabi , Abdol-Hossein Vahabie

Robustness to environmental noise is important to creating automatic speech emotion recognition systems that are deployable in the real world. Prior work on noise robustness has assumed that systems would not make use of sample-by-sample…

声音 · 计算机科学 2020-10-23 Alex Wilf , Emily Mower Provost

Diffusion models have been shown to achieve natural-sounding enhancement of speech degraded by noise or reverberation. However, their simultaneous denoising and dereverberation capability has so far not been studied much, although this is…

音频与语音处理 · 电气工程与系统科学 2025-08-27 Adrian Meise , Tobias Cord-Landwehr , Reinhold Haeb-Umbach

In this paper, we introduce a denoising diffusion algorithm to discover microstructures with nonlinear fine-tuned properties. Denoising diffusion probabilistic models are generative models that use diffusion-based dynamics to gradually…

机器学习 · 计算机科学 2023-06-14 Nikolaos N. Vlassis , WaiChing Sun

Microscopy image analysis often requires the segmentation of objects, but training data for this task is typically scarce and hard to obtain. Here we propose DenoiSeg, a new method that can be trained end-to-end on only a few annotated…

计算机视觉与模式识别 · 计算机科学 2020-06-12 Tim-Oliver Buchholz , Mangal Prakash , Alexander Krull , Florian Jug

In non-stationary environments, learning machines usually confront the domain adaptation scenario where the data distribution does change over time. Previous domain adaptation works have achieved great success in theory and practice.…

机器学习 · 计算机科学 2020-05-06 Zhongyi Han , Xian-Jin Gui , Chaoran Cui , Yilong Yin

Neural networks often learn spurious correlations when exposed to biased training data, leading to poor performance on out-of-distribution data. A biased dataset can be divided, according to biased features, into bias-aligned samples (i.e.,…

机器学习 · 计算机科学 2023-08-17 Rui Hu , Yahan Tu , Jitao Sang

We study the inductive biases of diffusion models with a conditioning-variable, which have seen widespread application as both text-conditioned generative image models and observation-conditioned continuous control policies. We observe that…

机器学习 · 计算机科学 2025-12-23 Daniel Pfrommer , Zehao Dou , Christopher Scarvelis , Max Simchowitz , Ali Jadbabaie

Image denoising is a fundamental problem in computational photography, where achieving high perception with low distortion is highly demanding. Current methods either struggle with perceptual quality or suffer from significant distortion.…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Tong Li , Hansen Feng , Lizhi Wang , Zhiwei Xiong , Hua Huang