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Adaptive block partitioning is responsible for large gains in current image and video compression systems. This method is able to compress large stationary image areas with only a few symbols, while maintaining a high level of quality in…

图像与视频处理 · 电气工程与系统科学 2023-07-13 Fabian Brand , Alexander Kopte , Kristian Fischer , André Kaup

In this paper, we present a novel approach to reconstruct a unique image of an observed scene with widely distributed radar sensors. The problem is posed as a constrained optimization problem in which the global image which represents the…

信号处理 · 电气工程与系统科学 2023-06-28 Ahmed Murtada , Ruizhi Hu , Bhavani Shankar Mysore Rama Rao , Udo Schroeder

Advanced algorithms for large-scale electronic structure calculations are mostly based on processing multi-dimensional sparse data. Examples are sparse matrix-matrix multiplications in linear-scaling Kohn-Sham calculations or the efficient…

分布式、并行与集群计算 · 计算机科学 2019-10-31 Ilia Sivkov , Patrick Seewald , Alfio Lazzaro , Juerg Hutter

Machine-generated data is rapidly growing and poses challenges for data-intensive systems, especially as the growth of data outpaces the growth of storage space. To cope with the storage issue, compression plays a critical role in storage…

数据库 · 计算机科学 2023-11-27 Jiujing Zhang , Zhitao Shen , Shiyu Yang , Lingkai Meng , Chuan Xiao , Wei Jia , Yue Li , Qinhui Sun , Wenjie Zhang , Xuemin Lin

We propose an efficient algorithm for the generalized sparse coding (SC) inference problem. The proposed framework applies to both the single dictionary setting, where each data point is represented as a sparse combination of the columns of…

机器学习 · 计算机科学 2019-06-10 Benjamin Cowen , Apoorva Nandini Saridena , Anna Choromanska

Stochastic variance reduced methods have gained a lot of interest recently for empirical risk minimization due to its appealing run time complexity. When the data size is large and disjointly stored on different machines, it becomes…

机器学习 · 计算机科学 2020-08-26 Shicong Cen , Huishuai Zhang , Yuejie Chi , Wei Chen , Tie-Yan Liu

In dual decomposition, the dual to an optimization problem with a specific structure is solved in distributed fashion using (sub)gradient and recently also fast gradient methods. The traditional dual decomposition suffers from two main…

最优化与控制 · 数学 2014-04-08 Pontus Giselsson

While quantum algorithms for solving large scale systems of linear equations offer potentially exponential speedups, their application has largely been confined to sparse matrices. This work extends the scope of these algorithms to a broad…

量子物理 · 物理学 2026-02-27 Kun Tang , Jun Lai

Image- and data-parallel rendering across multiple nodes on high-performance computing systems is widely used in visualization to provide higher frame rates, support large data sets, and render data in situ. Specifically for in situ…

图形学 · 计算机科学 2023-05-15 Will Usher , Ingo Wald , Jefferson Amstutz , Johannes Günther , Carson Brownlee , Valerio Pascucci

In recent years, considerable attention has been devoted to the regularization models due to the presence of high-dimensional data in scientific research. Sparse support vector machine (SVM) are useful tools in high-dimensional data…

统计计算 · 统计学 2023-12-27 Jiawei Wen

The back-end module of Distributed Collaborative Simultaneous Localization and Mapping (DCSLAM) requires solving a nonlinear Pose Graph Optimization (PGO) under a distributed setting, also known as SE(d)-synchronization. Most existing…

机器人学 · 计算机科学 2024-03-21 Cunhao Li , Peng Yi , Guanghui Guo , Yiguang Hong

Advanced diffusion models (DMs) perform impressively in image super-resolution (SR), but the high memory and computational costs hinder their deployment. Binarization, an ultra-compression algorithm, offers the potential for effectively…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Zheng Chen , Haotong Qin , Yong Guo , Xiongfei Su , Xin Yuan , Linghe Kong , Yulun Zhang

Speculative decoding is a powerful technique for reducing the latency of Large Language Models (LLMs), offering a fault-tolerant framework that enables the use of highly compressed draft models. In this work, we introduce Self-Distilled…

计算与语言 · 计算机科学 2025-06-03 Mike Lasby , Nish Sinnadurai , Valavan Manohararajah , Sean Lie , Yani Ioannou , Vithursan Thangarasa

Recently, the decentralized baseband processing (DBP) paradigm and relevant detection methods have been proposed to enable extremely large-scale massive multiple-input multiple-output technology. Under the DBP architecture, base station…

信号处理 · 电气工程与系统科学 2023-05-23 Xiaotong Zhao , Mian Li , Bo Wang , Enbin Song , Tsung-Hui Chang , Qingjiang Shi

In video coding, it is expected that the encoder could adaptively select the encoding parameters (e.g., quantization parameter) to optimize the bit allocation to different sources under the given constraint. However, in hybrid video coding,…

多媒体 · 计算机科学 2015-11-17 Chao Wang , Xuanqin Mou , Lei Zhang

This article proposes diffusion LMS strategies for distributed estimation over adaptive networks that are able to exploit sparsity in the underlying system model. The approach relies on convex regularization, common in compressive sensing,…

机器学习 · 计算机科学 2015-06-05 Paolo Di Lorenzo , Ali H. Sayed

The line is a prevalent element in man-made environments, inherently encoding spatial structural information, thus making it a more robust choice for feature representation in practical applications. Despite its apparent advantages,…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Yongcong Zhang , Bangyan Liao , Yifei Xue , Chen Lu , Peidong Liu , Yizhen Lao

The persistence diagram, which describes the topological features of a dataset, is a key descriptor in Topological Data Analysis. The "Discrete Morse Sandwich" (DMS) method has been reported to be the most efficient algorithm for computing…

分布式、并行与集群计算 · 计算机科学 2025-10-27 Eve Le Guillou , Pierre Fortin , Julien Tierny

Machine learning with big data often involves large optimization models. For distributed optimization over a cluster of machines, frequent communication and synchronization of all model parameters (optimization variables) can be very…

最优化与控制 · 数学 2017-10-17 Lin Xiao , Adams Wei Yu , Qihang Lin , Weizhu Chen

Large language models (LLMs) have demonstrated outstanding performance in various tasks, such as text summarization, text question-answering, and etc. While their performance is impressive, the computational footprint due to their vast…

机器学习 · 计算机科学 2024-04-22 Peng Xu , Wenqi Shao , Mengzhao Chen , Shitao Tang , Kaipeng Zhang , Peng Gao , Fengwei An , Yu Qiao , Ping Luo