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相关论文: Deterministic Distributed Vertex Coloring: Simpler…

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We present an $O(\log^3\log n)$-round distributed algorithm for the $(\Delta+1)$-coloring problem, where each node broadcasts only one $O(\log n)$-bit message per round to its neighbors. Previously, the best such broadcast-based algorithm…

分布式、并行与集群计算 · 计算机科学 2023-04-20 Maxime Flin , Mohsen Ghaffari , Magnús M. Halldórsson , Fabian Kuhn , Alexandre Nolin

We present new randomized algorithms that improve the complexity of the classic $(\Delta+1)$-coloring problem, and its generalization $(\Delta+1)$-list-coloring, in three well-studied models of distributed, parallel, and centralized…

数据结构与算法 · 计算机科学 2018-11-06 Yi-Jun Chang , Manuela Fischer , Mohsen Ghaffari , Jara Uitto , Yufan Zheng

The distributed (Delta + 1)-coloring problem is one of most fundamental and well-studied problems of Distributed Algorithms. Starting with the work of Cole and Vishkin in 86, there was a long line of gradually improving algorithms…

分布式、并行与集群计算 · 计算机科学 2008-12-26 Leonid Barenboim , Michael Elkin

We consider graph coloring and related problems in the distributed message-passing model. {Locally-iterative algorithms} are especially important in this setting. These are algorithms in which each vertex decides about its next color only…

分布式、并行与集群计算 · 计算机科学 2021-08-20 Leonid Barenboim , Michael Elkin , Uri Goldenberg

As the main contribution of this work we present deterministic edge coloring algorithms in the CONGEST model. In particular, we present an algorithm that edge colors any $n$-node graph with maximum degree $\Delta$ with with…

数据结构与算法 · 计算机科学 2026-03-04 Joakim Blikstad , Yannic Maus , Tijn de Vos

We design fast dynamic algorithms for proper vertex and edge colorings in a graph undergoing edge insertions and deletions. In the static setting, there are simple linear time algorithms for $(\Delta+1)$- vertex coloring and…

数据结构与算法 · 计算机科学 2017-11-15 Sayan Bhattacharya , Deeparnab Chakrabarty , Monika Henzinger , Danupon Nanongkai

We present a deterministic distributed algorithm, in the LOCAL model, that computes a $(1+o(1))\Delta$-edge-coloring in polylogarithmic-time, so long as the maximum degree $\Delta=\tilde{\Omega}(\log n)$. For smaller $\Delta$, we give a…

数据结构与算法 · 计算机科学 2017-11-16 Mohsen Ghaffari , Fabian Kuhn , Yannic Maus , Jara Uitto

Vizing showed that it suffices to color the edges of a simple graph using $\Delta + 1$ colors, where $\Delta$ is the maximum degree of the graph. However, up to this date, no efficient distributed edge-coloring algorithms are known for…

数据结构与算法 · 计算机科学 2019-04-11 Hsin-Hao Su , Hoa T. Vu

Network decomposition is a central tool in distributed graph algorithms. We present two improvements on the state of the art for network decomposition, which thus lead to improvements in the (deterministic and randomized) complexity of…

数据结构与算法 · 计算机科学 2020-07-17 Mohsen Ghaffari , Christoph Grunau , Václav Rozhoň

We study the edge-coloring problem in simple $n$-vertex $m$-edge graphs with maximum degree $\Delta$. This is one of the most classical and fundamental graph-algorithmic problems. Vizing's celebrated theorem provides…

数据结构与算法 · 计算机科学 2024-07-10 Michael Elkin , Ariel Khuzman

Recent breakthroughs in graph streaming have led to the design of single-pass semi-streaming algorithms for various graph coloring problems such as $(\Delta+1)$-coloring, degeneracy-coloring, coloring triangle-free graphs, and others. These…

数据结构与算法 · 计算机科学 2021-10-01 Sepehr Assadi , Andrew Chen , Glenn Sun

We present a deterministic $O(\log \log \log n)$-round low-space Massively Parallel Computation (MPC) algorithm for the classical problem of $(\Delta+1)$-coloring on $n$-vertex graphs. In this model, every machine has a sublinear local…

数据结构与算法 · 计算机科学 2021-12-14 Artur Czumaj , Peter Davies , Merav Parter

Graph coloring is one of the central problems in distributed graph algorithms. Much of the research on this topic has focused on coloring with $\Delta+1$ colors, where $\Delta$ denotes the maximum degree. Using $\Delta+1$ colors may be…

数据结构与算法 · 计算机科学 2017-08-24 Mohsen Ghaffari , Christiana Lymouri

We present a randomized distributed algorithm that computes a $\Delta$-coloring in any non-complete graph with maximum degree $\Delta \geq 4$ in $O(\log \Delta) + 2^{O(\sqrt{\log\log n})}$ rounds, as well as a randomized algorithm that…

数据结构与算法 · 计算机科学 2020-08-04 Mohsen Ghaffari , Juho Hirvonen , Fabian Kuhn , Yannic Maus

Brooks' theorem states that all connected graphs but odd cycles and cliques can be colored with $\Delta$ colors, where $\Delta$ is the maximum degree of the graph. Such colorings have been shown to admit non-trivial distributed algorithms…

分布式、并行与集群计算 · 计算机科学 2025-03-07 Yann Bourreau , Sebastian Brandt , Alexandre Nolin

Consider the following simple coloring algorithm for a graph on $n$ vertices. Each vertex chooses a color from $\{1, \dotsc, \Delta(G) + 1\}$ uniformly at random. While there exists a conflicted vertex choose one such vertex uniformly at…

数据结构与算法 · 计算机科学 2021-05-04 Daniel Bertschinger , Johannes Lengler , Anders Martinsson , Robert Meier , Angelika Steger , Miloš Trujić , Emo Welzl

We present a simple randomized algorithm that can efficiently maintain a $(\Delta+1)$ coloring as the graph undergoes edge insertion and deletion updates, where $\Delta$ denotes an upper bound on the maximum degree. A key advantage is the…

数据结构与算法 · 计算机科学 2025-12-11 Mohsen Ghaffari , Jaehyun Koo

The distributed coloring problem is at the core of the area of distributed graph algorithms and it is a problem that has seen tremendous progress over the last few years. Much of the remarkable recent progress on deterministic distributed…

分布式、并行与集群计算 · 计算机科学 2023-10-06 Marc Fuchs , Fabian Kuhn

There is a huge difference in techniques and runtimes of distributed algorithms for problems that can be solved by a sequential greedy algorithm and those that cannot. A prime example of this contrast appears in the edge coloring problem:…

数据结构与算法 · 计算机科学 2025-05-27 Manuel Jakob , Yannic Maus , Florian Schager

Any graph with maximum degree $\Delta$ admits a proper vertex coloring with $\Delta + 1$ colors that can be found via a simple sequential greedy algorithm in linear time and space. But can one find such a coloring via a sublinear algorithm?…

数据结构与算法 · 计算机科学 2019-01-08 Sepehr Assadi , Yu Chen , Sanjeev Khanna