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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

In federated learning (FL), accommodating clients' varied computational capacities poses a challenge, often limiting the participation of those with constrained resources in global model training. To address this issue, the concept of model…

分布式、并行与集群计算 · 计算机科学 2024-12-10 Feijie Wu , Xingchen Wang , Yaqing Wang , Tianci Liu , Lu Su , Jing Gao

The class-conditional image generation based on diffusion models is renowned for generating high-quality and diverse images. However, most prior efforts focus on generating images for general categories, e.g., 1000 classes in ImageNet-1k. A…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Ziying Pan , Kun Wang , Gang Li , Feihong He , Yongxuan Lai

Psychiatric questionnaires are highly context sensitive and often only weakly predict subsequent symptom severity, which makes the prognostic relationship difficult to learn. Although flexible nonlinear models can improve predictive…

机器学习 · 计算机科学 2026-03-02 Eric V. Strobl

Good weight initialization serves as an effective measure to reduce the training cost of a deep neural network (DNN) model. The choice of how to initialize parameters is challenging and may require manual tuning, which can be time-consuming…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Yifan Gong , Zheng Zhan , Yanyu Li , Yerlan Idelbayev , Andrey Zharkov , Kfir Aberman , Sergey Tulyakov , Yanzhi Wang , Jian Ren

Large Vision-Language Foundation Models (VLFM), such as CLIP, ALIGN and Florence, are trained on large-scale datasets of image-caption pairs and achieve superior transferability and robustness on downstream tasks, but they are difficult to…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Ximeng Sun , Pengchuan Zhang , Peizhao Zhang , Hardik Shah , Kate Saenko , Xide Xia

Initializing with pre-trained models when learning on downstream tasks is becoming standard practice in machine learning. Several recent works explore the benefits of pre-trained initialization in a federated learning (FL) setting, where…

机器学习 · 计算机科学 2025-02-13 Divyansh Jhunjhunwala , Pranay Sharma , Zheng Xu , Gauri Joshi

Deep image restoration models aim to learn a mapping from degraded image space to natural image space. However, they face several critical challenges: removing degradation, generating realistic details, and ensuring pixel-level consistency.…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Xinqi Lin , Fanghua Yu , Jinfan Hu , Zhiyuan You , Wu Shi , Jimmy S. Ren , Jinjin Gu , Chao Dong

Research has shown that convolutional neural networks contain significant redundancy, and high classification accuracy can be obtained even when weights and activations are reduced from floating point to binary values. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2016-12-22 Yaman Umuroglu , Nicholas J. Fraser , Giulio Gambardella , Michaela Blott , Philip Leong , Magnus Jahre , Kees Vissers

This work presents a formalism to improve the predictive accuracy of physical models by learning generalizable augmentations from sparse data. Building on recent advances in data-driven turbulence modeling, the present approach, referred to…

流体动力学 · 物理学 2021-07-28 Vishal Srivastava , Karthik Duraisamy

Deep neural networks trained on nonstationary data must balance stability (i.e., retaining prior knowledge) and plasticity (i.e., adapting to new tasks). Standard reinitialization methods, which reinitialize weights toward their original…

机器学习 · 计算机科学 2026-04-02 Isaac Han , Sangyeon Park , Seungwon Oh , Donghu Kim , Hojoon Lee , Kyung-Joong Kim

Recently, Stitchable Neural Networks (SN-Net) is proposed to stitch some pre-trained networks for quickly building numerous networks with different complexity and performance trade-offs. In this way, the burdens of designing or training the…

机器学习 · 计算机科学 2023-12-13 Boyu Shi , Shiyu Xia , Xu Yang , Haokun Chen , Zhiqiang Kou , Xin Geng

Most recent extreme rescaling methods struggle to preserve semantically consistent structures and produce realistic details, due to the severely ill-posed nature of low- to high-resolution mapping under scaling factors of $16\times$ or…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Hao Wei , Yanhui Zhou , Chenyang Ge , Saeed Anwar , Ajmal Mian

Federated Learning (FL) is a distributed training paradigm that enables clients scattered across the world to cooperatively learn a global model without divulging confidential data. However, FL faces a significant challenge in the form of…

机器学习 · 计算机科学 2023-11-16 Xidong Wu , Wan-Yi Lin , Devin Willmott , Filipe Condessa , Yufei Huang , Zhenzhen Li , Madan Ravi Ganesh

This paper revisits the standard pretrain-then-finetune paradigm used in computer vision for visual recognition tasks. Typically, state-of-the-art foundation models are pretrained using large scale (weakly) supervised datasets with billions…

High-dimensional recordings of dynamical processes are often characterized by a much smaller set of effective variables, evolving on low-dimensional manifolds. Identifying these latent dynamics requires solving two intertwined problems:…

机器学习 · 计算机科学 2026-01-21 Manuel Hinz , Maximilian Mauel , Patrick Seifner , David Berghaus , Kostadin Cvejoski , Ramses J. Sanchez

In this paper, we introduce a novel approach to neural learning: the Feature-Imitating-Network (FIN). A FIN is a neural network with weights that are initialized to reliably approximate one or more closed-form statistical features, such as…

机器学习 · 计算机科学 2021-10-26 Sari Saba-Sadiya , Tuka Alhanai , Mohammad M Ghassemi

Though diffusion-based video generation has witnessed rapid progress, the inference results of existing models still exhibit unsatisfactory temporal consistency and unnatural dynamics. In this paper, we delve deep into the noise…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Tianxing Wu , Chenyang Si , Yuming Jiang , Ziqi Huang , Ziwei Liu

Diffusion models produce high quality images but inference is costly due to many denoising steps and heavy matrix operations. We present DiffPro, a post-training, hardware-faithful framework that works with the exact integer kernels used in…

机器学习 · 计算机科学 2025-11-17 Farhana Amin , Sabiha Afroz , Kanchon Gharami , Mona Moghadampanah , Dimitrios S. Nikolopoulos

An oft-cited challenge of federated learning is the presence of heterogeneity. \emph{Data heterogeneity} refers to the fact that data from different clients may follow very different distributions. \emph{System heterogeneity} refers to…

机器学习 · 计算机科学 2023-03-28 John Nguyen , Jianyu Wang , Kshitiz Malik , Maziar Sanjabi , Michael Rabbat