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Post-training Sparsity (PTS) is a recently emerged avenue that chases efficient network sparsity with limited data in need. Existing PTS methods, however, undergo significant performance degradation compared with traditional methods that…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Jingjing Xie , Yuxin Zhang , Mingbao Lin , Zhihang Lin , Liujuan Cao , Rongrong Ji

Compressed sensing in MRI enables high subsampling factors while maintaining diagnostic image quality. This technique enables shortened scan durations and/or improved image resolution. Further, compressed sensing can increase the diagnostic…

图像与视频处理 · 电气工程与系统科学 2019-03-20 Joseph Y. Cheng , Feiyu Chen , Christopher Sandino , Morteza Mardani , John M. Pauly , Shreyas S. Vasanawala

In this paper, we demonstrate some applications of compressive sensing over networks. We make a connection between compressive sensing and traditional information theoretic techniques in source coding and channel coding. Our results provide…

信息论 · 计算机科学 2010-12-07 Soheil Feizi , Muriel Medard , Michelle Effros

Learning from set-structured data is a fundamental problem that has recently attracted increasing attention, where a series of summary networks are introduced to deal with the set input. In fact, many meta-learning problems can be treated…

机器学习 · 计算机科学 2023-03-08 Dandan Guo , Long Tian , Minghe Zhang , Mingyuan Zhou , Hongyuan Zha

Diffusion models have transformed the landscape of image generation and now show remarkable potential for image compression. Most of the recent diffusion-based compression methods require training and are tailored for a specific bit-rate.…

计算机视觉与模式识别 · 计算机科学 2025-02-06 Noam Elata , Tomer Michaeli , Michael Elad

The goal of compressive sensing is efficient reconstruction of data from few measurements, sometimes leading to a categorical decision. If only classification is required, reconstruction can be circumvented and the measurements needed are…

计算机视觉与模式识别 · 计算机科学 2013-10-17 B. W. Brunton , S. L. Brunton , J. L. Proctor , J. N. Kutz

There has been growing interest in parameter-efficient methods to apply pre-trained language models to downstream tasks. Building on the Prompt Tuning approach of Lester et al. (2021), which learns task-specific soft prompts to condition a…

计算与语言 · 计算机科学 2022-03-18 Tu Vu , Brian Lester , Noah Constant , Rami Al-Rfou , Daniel Cer

Inverse source localization from Helmholtz boundary data collected over a narrow aperture is highly ill-posed and severely undersampled, undermining classical solvers (e.g., the Direct Sampling Method). We present a modular framework that…

数值分析 · 数学 2025-10-31 Guanyu Pan , Jianing Zhou , Xiaotong Liu , Yunqing Huang , Nianyu Yi

Compressed Sensing algorithms often make use of the hard thresholding operator to pass from dense vectors to their best s-sparse approximations. However, the output of the hard thresholding operator does not depend on any information from a…

数值分析 · 数学 2020-10-15 Jonathan Ashbrock

Learning complex physical dynamics purely from data is challenging due to the intrinsic properties of systems to be satisfied. Incorporating physics-informed priors, such as in Hamiltonian Neural Networks (HNNs), achieves high-precision…

机器学习 · 计算机科学 2024-10-10 Zijie Huang , Wanjia Zhao , Jingdong Gao , Ziniu Hu , Xiao Luo , Yadi Cao , Yuanzhou Chen , Yizhou Sun , Wei Wang

Conformal prediction is a distribution-free framework for uncertainty quantification that replaces point predictions with sets, offering marginal coverage guarantees (i.e., ensuring that the prediction sets contain the true label with a…

Transfer learning involves adapting a pre-trained model to novel downstream tasks. However, we observe that current transfer learning methods often fail to focus on task-relevant features. In this work, we explore refocusing model attention…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Baifeng Shi , Siyu Gai , Trevor Darrell , Xin Wang

We introduce a simple post-training method that makes transformer attention sparse without sacrificing performance. Applying a flexible sparsity regularisation under a constrained-loss objective, we show on models up to 7B parameters that…

机器学习 · 计算机科学 2026-05-26 Florent Draye , Anson Lei , Hsiao-Ru Pan , Ingmar Posner , Bernhard Schölkopf

Compression has been a critical lens to understand the success of Transformers. In the past, we have typically taken the target distribution as a criterion to evaluate a model's compression performance. Nevertheless,it often remains…

机器学习 · 计算机科学 2025-04-29 Ruifeng Ren , Yong Liu

Modern visual generative models acquire rich visual knowledge through large-scale training, yet existing visual representations (such as pixels, latents, or tokens) remain external to the model and cannot directly exploit this knowledge for…

机器学习 · 计算机科学 2026-05-25 Zongyu Guo , Jiajun He , Zhaoyang Jia , Xiaoyi Zhang , Jiahao Li , Xiao Li , Bin Li , José Miguel Hernández-Lobato , Yan Lu

Exploiting intrinsic structures in sparse signals underpins the recent progress in compressive sensing (CS). The key for exploiting such structures is to achieve two desirable properties: generality (\ie, the ability to fit a wide range of…

信号处理 · 电气工程与系统科学 2018-12-26 Suwichaya Suwanwimolkul , Lei Zhang , Dong Gong , Zhen Zhang , Chao Chen , Damith C. Ranasinghe , Qinfeng Shi

In this paper, the use of the Generalized Beta Mixture (GBM) and Horseshoe distributions as priors in the Bayesian Compressive Sensing framework is proposed. The distributions are considered in a two-layer hierarchical model, making the…

信息论 · 计算机科学 2014-11-11 Zahra Sabetsarvestani , Hamidreza Amindavar

We present a novel method for reconstructing the thermal conductivity coefficient in 1D and 2D heat equations using moving sensors that dynamically traverse the domain to record sparse and noisy temperature measurements. We significantly…

数值分析 · 数学 2024-10-31 Guangting Yu , Shiwei Lan , Kookjin Lee , Alex Mahalov

Transformers have proven superior performance for a wide variety of tasks since they were introduced. In recent years, they have drawn attention from the vision community in tasks such as image classification and object detection. Despite…

计算机视觉与模式识别 · 计算机科学 2022-10-03 Yihong Xu , Yutong Ban , Guillaume Delorme , Chuang Gan , Daniela Rus , Xavier Alameda-Pineda

In recent years, compressed sensing (CS) based image coding has become a hot topic in image processing field. However, since the bit depth required for encoding each CS sample is too large, the compression performance of this paradigm is…

多媒体 · 计算机科学 2021-02-03 Bo Zhang , Di Xiao , Lan Wang , Sen Bai , Lei Yang