Results 21 to 30 of about 190,829 (309)
Partitions of Graphs into Cographs
AbstractCographs form the minimal family of graphs containing K1 that is closed with respect to complementation and disjoint union. We discuss vertex partitions of graphs into the smallest number of cographs. We introduce a new parameter, calling the minimum order of such a partition the c-chromatic number of the graph. We begin by axiomatizing several
Jaroslav Nesetril, John Gimbel
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Partitions in Matrices and Graphs
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D. R. Hughes, N. M. Singhi
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Adaptive Partitioning for Large-Scale Dynamic Graphs [PDF]
—In the last years, large-scale graph processing has gained increasing attention, with most recent systems placing particular emphasis on latency. One possible technique to improve runtime performance in a distributed graph processing system is to reduce
Cuadrado, F +4 more
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GAP: Genetic Algorithm Based Large-Scale Graph Partition in Heterogeneous Cluster
Graph is an important model to describe various networks, and its scale becomes larger and larger with the development of communication and information technology.
Menghan Li +3 more
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Generalized partitions of graphs
The authors introduce a general graph partitioning problem: Let \(C\) be a class of graphs and \(H\) a fixed graph with vertex class \(V(H)=\{1,2,\dots,n\}\). An (resp. ONTO) \((H,C)\)-partition of a graph \(G\) is a partition \(V_1,V_2,\dots,V_n\) of \(V(G)\) such that, for each \(i\), the subgraph of \(G\) induced by \(V_i\) belongs to \(C\) and, if \
Gary MacGillivray, Min-Li Yu
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A graph \(G\) admits a tree-partition of width \(k\) if its vertex set can be partitioned into sets of size at most \(k\) so that the graph obtained by identifying the vertices in each set of the partition, and then deleting loops and parallel edges, is a forest. If no such \(k\) exist, the width is set to be infinite.
Bogdan Oporowski, Guoli Ding
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Revisiting the Isoperimetric Graph Partitioning Problem
Isoperimetric graph partitioning, which is also known as the Cheeger cut, is NP-hard in its original form. In the literature, multiple modifications to this problem have been proposed to obtain approximation algorithms for clustering applications. In the
Sravan Danda +3 more
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A Novel Partitioning Method for Accelerating the Block Cimmino Algorithm [PDF]
We propose a novel block-row partitioning method in order to improve the convergence rate of the block Cimmino algorithm for solving general sparse linear systems of equations.
Aykanat, Cevdet +2 more
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Partitioning the edges of a graph
AbstractFor any integer m (≥2), it is known that there are simple graphs of maximum valence m whose edges cannot be coloured with m colours in such a way that adjacent edges shall have different colours. We find those values of m and k for which it is true that every simple graph whose maximum valence does not exceed mk can be coloured with m colours ...
Anthony J. W. Hilton, Rhys Price Jones
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RBSEP: a reassignment and buffer based streaming edge partitioning approach
In recent years, the rapid growth of the Internet has led to creation of massively large graphs. Since databases have become very large nowadays, they cannot be processed by a simple machine at an acceptable time anymore; therefore, traditional graph ...
Monireh Taimouri, Hamid Saadatfar
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