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We consider the problem of constructing distributed overlay networks, where nodes in a reconfigurable system can create or sever connections with nodes whose identifiers they know. Initially, each node knows only its own and its neighbors'…

分布式、并行与集群计算 · 计算机科学 2025-10-14 Yi-Jun Chang , Yanyu Chen , Gopinath Mishra

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

We study distributed optimization algorithms for minimizing the average of convex functions. The applications include empirical risk minimization problems in statistical machine learning where the datasets are large and have to be stored on…

最优化与控制 · 数学 2016-01-07 Jason D. Lee , Qihang Lin , Tengyu Ma , Tianbao Yang

This paper discusses distributed approaches for the solution of random convex programs (RCP). RCPs are convex optimization problems with a (usually large) number N of randomly extracted constraints; they arise in several applicative areas,…

最优化与控制 · 数学 2012-07-27 Luca Carlone , Vaibhav Srivastava , Francesco Bullo , Giuseppe Calafiore

We give a simple, greedy $O(n^{\omega+0.5})=O(n^{2.872})$-time algorithm to list-decode planted cliques in a semirandom model introduced in [CSV17] (following [FK01]) that succeeds whenever the size of the planted clique is $k\geq…

数据结构与算法 · 计算机科学 2024-10-10 Jarosław Błasiok , Rares-Darius Buhai , Pravesh K. Kothari , David Steurer

We describe an asynchronous algorithm to solve secure multiparty computation (MPC) over n players, when strictly less than a 1/8 fraction of the players are controlled by a static adversary. For any function f over a field that can be…

数据结构与算法 · 计算机科学 2013-10-15 Varsha Dani , Valerie King , Mahnush Movahedi , Jared Saia

We present a randomized distributed algorithm that in radio networks with collision detection broadcasts a single message in $O(D + \log^6 n)$ rounds, with high probability. This time complexity is most interesting because of its optimal…

数据结构与算法 · 计算机科学 2014-04-04 Mohsen Ghaffari , Bernhard Haeupler , Majid Khabbazian

Imagine a large graph that is being processed by a cluster of computers, e.g., described by the $k$-machine model or the Massively Parallel Computation Model. The graph, however, is not static; instead it is receiving a constant stream of…

分布式、并行与集群计算 · 计算机科学 2020-02-18 Seth Gilbert , Lawrence Li

Due to the communication bottleneck in distributed and federated learning applications, algorithms using communication compression have attracted significant attention and are widely used in practice. Moreover, the huge number, high…

机器学习 · 计算机科学 2023-09-26 Haoyu Zhao , Konstantin Burlachenko , Zhize Li , Peter Richtárik

We study the maximum cardinality matching problem in a standard distributed setting, where the nodes $V$ of a given $n$-node network graph $G=(V,E)$ communicate over the edges $E$ in synchronous rounds. More specifically, we consider the…

分布式、并行与集群计算 · 计算机科学 2020-02-19 Mohamad Ahmadi , Fabian Kuhn

We consider the problem of computing a maximal matching with a distributed algorithm in the presence of batch-dynamic changes to the graph topology. We assume that a graph of $n$ nodes is vertex-partitioned among $k$ players that…

分布式、并行与集群计算 · 计算机科学 2024-01-30 Minming Li , Peter Robinson , Xianbin Zhu

Humans are very good at optimizing solutions for specific problems. Biological processes, on the other hand, have evolved to handle multiple constrained distributed environments and so they are robust and adaptable. Inspired by observations…

分布式、并行与集群计算 · 计算机科学 2015-03-19 Yehuda Afek , Noga Alon , Ziv Bar-Joseph

In this paper, the problem of designing network codes that are both communicationally and computationally efficient over packet line networks with worst-case schedules is considered. In this context, random linear network codes (dense…

信息论 · 计算机科学 2015-03-19 Anoosheh Heidarzadeh , Amir H. Banihashemi

We present new distributed quantum algorithms for fundamental distributed computing problems, namely, leader election, broadcast, Minimum Spanning Tree (MST), and Breadth-First Search (BFS) tree, in arbitrary networks. These algorithms are…

量子物理 · 物理学 2026-03-03 Fabien Dufoulon , Frédéric Magniez , Gopal Pandurangan

Miller et al. \cite{MPVX15} devised a distributed\footnote{They actually showed a PRAM algorithm. The distributed algorithm with these properties is implicit in \cite{MPVX15}.} algorithm in the CONGEST model, that given a parameter $k =…

数据结构与算法 · 计算机科学 2017-02-07 Michael Elkin , Ofer Neiman

Maximal clique enumeration (MCE) is a fundamental problem in graph theory and is used in many applications, such as social network analysis, bioinformatics, intelligent agent systems, cyber security, etc. Most existing MCE algorithms focus…

数据库 · 计算机科学 2020-12-01 Xiaofan Li , Rui Zhou , Lu Chen , Chengfei Liu , Qiang He , Yun Yang

We consider the massively parallel computation (MPC) model, which is a theoretical abstraction of large-scale parallel processing models such as MapReduce. In this model, assuming the widely believed 1-vs-2-cycles conjecture, solving many…

数据结构与算法 · 计算机科学 2023-10-31 Yi-Jun Chang , Da Wei Zheng

We study local symmetry breaking problems in the CONGEST model, focusing on ruling set problems, which generalize the fundamental Maximal Independent Set (MIS) problem. A $\beta$-ruling set is an independent set such that every node in the…

分布式、并行与集群计算 · 计算机科学 2017-05-25 Shreyas Pai , Gopal Pandurangan , Sriram V. Pemmaraju , Talal Riaz , Peter Robinson

In their seminal work on the Stable Marriage Problem, Gale and Shapley describe an algorithm which finds a stable matching in $O(n^2)$ communication rounds. Their algorithm has a natural interpretation as a distributed algorithm where each…

计算机科学与博弈论 · 计算机科学 2015-04-03 Rafail Ostrovsky , Will Rosenbaum

We consider leader election in clique networks, where $n$ nodes are connected by point-to-point communication links. For the synchronous clique under simultaneous wake-up, i.e., where all nodes start executing the algorithm in round $1$, we…

分布式、并行与集群计算 · 计算机科学 2023-09-27 Shay Kutten , Peter Robinson , Ming Ming Tan , Xianbin Zhu