Results 11 to 20 of about 39,682 (219)

Solving Graph Homomorphism and Subgraph Isomorphism Problems Faster Through Clique Neighbourhood Constraints [PDF]

open access: bronzeProceedings of the Thirtieth International Joint Conference on Artificial Intelligence, 2021
Graph homomorphism problems involve finding adjacency-preserving mappings between two given graphs. Although theoretically hard, these problems can often be solved in practice using constraint programming algorithms. We show how techniques from the state-of-the-art in subgraph isomorphism solving can be applied to broader graph homomorphism problems ...
Sonja Kraiczy, Ciaran McCreesh
openalex   +3 more sources

HyGraph: a subgraph isomorphism algorithm for efficiently querying big graph databases

open access: yesJournal of Big Data, 2022
The big graph database provides strong modeling capabilities and efficient querying for complex applications. Subgraph isomorphism which finds exact matches of a query graph in the database efficiently, is a challenging problem.
Merve Asiler, Adnan Yazıcı, Roy George
doaj   +2 more sources

Solving subgraph isomorphism problems with constraint programming [PDF]

open access: closedConstraints, 2009
The subgraph isomorphism problem consists in deciding if there exists a copy of a pattern graph in a target graph. We introduce in this paper a global constraint and an associated filtering algorithm to solve this problem within the context of constraint programming.
Stéphane Zampelli   +2 more
openalex   +7 more sources

On parallel complexity of the subgraph homeomorphism and the subgraph isomorphism problem for classes of planar graphs

open access: bronzeTheoretical Computer Science, 1989
AbstractWe consider the problems of subgraph homeomorphism with fixed pattern, disjoint connecting paths with bounded number of terminal pairs, recognition, and subgraph isomorphism for some classes of planar graphs. Following the results of Robertson and Seymour on forbidden minor characterization, we show that the first three of the above problems ...
Andrzej Lingas, Andrzej Proskurowski
openalex   +3 more sources

The subgraph isomorphism problem for outerplanar graphs

open access: closedTheoretical Computer Science, 1982
AbstractThis paper deals with the subgraph isomorphism problem for outerplanar graphs (SUBOUTISOM). In general, since trees and forests are outerplanar, SUBOUTISOM is NP-complete. We show that SUBOUTISOM remains NP-complete even when the strongest connectivity requirements are imposed on both graphs.
Maciej M. SysŁ o
openalex   +3 more sources

GRAPH-SUBGRAPH ISOMORPHISM PROBLEM SOLVING FOR DESIGNING SPECIAL COMPUTERS

open access: diamondRadio Electronics, Computer Science, Control, 2012
An advanced algorithm for solving graphs isomorphism problem is proposed and experimental results of its efficiency are presented. Object of investigation is set of control flow graphs of solutions achieved, that were received after circumvent of the semantic network by Warren abstract machine.
Matviy Ilyashenko, A.A. Goldobin
openalex   +4 more sources

The Subgraph Isomorphism Problem on a Class of Hyperedge Replacement Languages [PDF]

open access: yesInternational Conference on Graph Transformation, 2014
A graph class is called A-free if every graph in the class has no graph in the set A as an induced subgraph. Such characterisations by forbidden induced subgraphs are (among other purposes) very useful for determining whether A-free is a subclass of B-free, by determining whether every graph in B has some graph in A as an induced subgraph.
de Ridder, Hendrik Nicolaas   +1 more
openaire   +4 more sources

Mapping Induced Subgraph Isomorphism Problems to Ising Models and Its Evaluations by an Ising Machine

open access: goldIEICE Transactions on Information and Systems, 2021
Natsuhito Yoshimura   +6 more
openalex   +4 more sources

Current Algorithms for Detecting Subgraphs of Bounded Treewidth Are Probably Optimal [PDF]

open access: yes, 2021
The Subgraph Isomorphism problem is of considerable importance in computer science. We examine the problem when the pattern graph H is of bounded treewidth, as occurs in a variety of applications.
Bringmann, Karl, Slusallek, Jasper
core   +4 more sources

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