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相关论文: Sketching for First Order Method: Efficient Algori…

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We study first-order optimization algorithms under the constraint that the descent direction is quantized using a pre-specified budget of $R$-bits per dimension, where $R \in (0 ,\infty)$. We propose computationally efficient optimization…

机器学习 · 计算机科学 2022-08-17 Rajarshi Saha , Mert Pilanci , Andrea J. Goldsmith

Federated Learning (FL) framework brings privacy benefits to distributed learning systems by allowing multiple clients to participate in a learning task under the coordination of a central server without exchanging their private data.…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Zhuohang Li , Jiaxin Zhang , Luyang Liu , Jian Liu

We present a simple and efficient method based on deep learning to automatically decompose sketched objects into semantically valid parts. We train a deep neural network to transfer existing segmentations and labelings from 3D models to…

图形学 · 计算机科学 2018-08-01 Lei Li , Hongbo Fu , Chiew-Lan Tai

Sketches are commonly used in computer systems and network monitoring tools to provide efficient query executions while maintaining a compact data representation. Switches and routers maintain sketches to track statistical characteristics…

分布式、并行与集群计算 · 计算机科学 2025-11-11 Diana Cohen , Roy Friedman , Rana Shahout

Sketching and streaming algorithms are in the forefront of current research directions for cut problems in graphs. In the streaming model, we show that $(1-\epsilon)$-approximation for Max-Cut must use $n^{1-O(\epsilon)}$ space; moreover,…

数据结构与算法 · 计算机科学 2026-02-23 Dmitry Kogan , Robert Krauthgamer

The communication bottleneck has been a critical problem in large-scale distributed deep learning. In this work, we study distributed SGD with random block-wise sparsification as the gradient compressor, which is ring-allreduce compatible…

机器学习 · 计算机科学 2022-06-14 An Xu , Heng Huang

Communication overhead is the key challenge for distributed training. Gradient compression is a widely used approach to reduce communication traffic. When combining with parallel communication mechanism method like pipeline, gradient…

机器学习 · 计算机科学 2021-09-08 Enda Yu , Dezun Dong , Yemao Xu , Shuo Ouyang , Xiangke Liao

Decentralized optimization methods enable on-device training of machine learning models without a central coordinator. In many scenarios communication between devices is energy demanding and time consuming and forms the bottleneck of the…

最优化与控制 · 数学 2020-11-04 Dmitry Kovalev , Anastasia Koloskova , Martin Jaggi , Peter Richtarik , Sebastian U. Stich

In the era of big data, the need to expand the amount of data through data sharing to improve model performance has become increasingly compelling. As a result, effective collaborative learning models need to be developed with respect to…

机器学习 · 计算机科学 2020-11-17 Huiwen Wu , Cen Chen , Li Wang

In sketched clustering, a dataset of $T$ samples is first sketched down to a vector of modest size, from which the centroids are subsequently extracted. Advantages include i) reduced storage complexity and ii) centroid extraction complexity…

信息论 · 计算机科学 2019-05-21 Evan Byrne , Antoine Chatalic , Remi Gribonval , Philip Schniter

Randomized-subspace methods reduce the cost of first-order optimization by using only low-dimensional projected-gradient information, a feature that is attractive in forward-mode automatic differentiation and communication-limited settings.…

最优化与控制 · 数学 2026-05-04 Gaku Omiya , Pierre-Louis Poirion , Akiko Takeda

Federated learning enables training machine learning models while preserving the privacy of participants. Surprisingly, there is no differentially private distributed method for smooth, non-convex optimization problems. The reason is that…

机器学习 · 计算机科学 2025-02-20 Egor Shulgin , Sarit Khirirat , Peter Richtárik

Coded computing is a distributed paradigm that uses coding theory to introduce \textit{redundancy} and overcome bottlenecks in large-scale systems. In the same vein, randomized numerical linear algebra employs probabilistic methods to…

分布式、并行与集群计算 · 计算机科学 2026-05-19 Neophytos Charalambides , Arya Mazumdar

This paper studies distributed stochastic nonconvex optimization problems with compressed communication and differential privacy, in which each agent aims to minimize the sum of all agents' cost functions by using local compressed…

最优化与控制 · 数学 2026-03-24 Antai Xie , Xiaoqiang Ren , Xinlei Yi , Tao Yang , Xiaofan Wang

We introduce a new sub-linear space sketch---the Weight-Median Sketch---for learning compressed linear classifiers over data streams while supporting the efficient recovery of large-magnitude weights in the model. This enables…

机器学习 · 计算机科学 2018-04-10 Kai Sheng Tai , Vatsal Sharan , Peter Bailis , Gregory Valiant

We consider machine learning applications that train a model by leveraging data distributed over a trusted network, where communication constraints can create a performance bottleneck. A number of recent approaches propose to overcome this…

机器学习 · 计算机科学 2021-09-10 Osama A. Hanna , Yahya H. Ezzeldin , Christina Fragouli , Suhas Diggavi

Large, distributed data streams are now ubiquitous. High-accuracy sketches with low memory overhead have become the de facto method for analyzing this data. For instance, if we wish to group data by some label and report the largest counts…

数据结构与算法 · 计算机科学 2024-02-14 Homin K. Lee , Charles Masson

Graph neural networks (GNNs) fuel diverse machine learning tasks involving graph-structured data, ranging from predicting protein structures to serving personalized recommendations. Real-world graph data must often be stored distributed…

机器学习 · 计算机科学 2024-02-13 Aashish Kolluri , Sarthak Choudhary , Bryan Hooi , Prateek Saxena

We adapt a well known streaming algorithm for approximating item frequencies to the matrix sketching setting. The algorithm receives the rows of a large matrix $A \in \R^{n \times m}$ one after the other in a streaming fashion. It maintains…

数据结构与算法 · 计算机科学 2012-07-12 Edo Liberty

We propose a novel network pruning approach by information preserving of pre-trained network weights (filters). Network pruning with the information preserving is formulated as a matrix sketch problem, which is efficiently solved by the…

计算机视觉与模式识别 · 计算机科学 2021-05-26 Mingbao Lin , Liujuan Cao , Shaojie Li , Qixiang Ye , Yonghong Tian , Jianzhuang Liu , Qi Tian , Rongrong Ji