Results 31 to 40 of about 615,797 (257)

Energy landscape structure of small graph isomorphism under variational optimization [PDF]

open access: yesAIP Advances
We investigate a quadratic unconstrained binary optimization formulation of the graph isomorphism problem using the quantum approximate optimization algorithm and the variational quantum eigensolver.
Turbasu Chatterjee   +2 more
doaj   +1 more source

Ideal Graph of a Graph [PDF]

open access: yes, 2011
In this paper, we introduce ideal graph of a graph and study some of its properties. We characterize connectedness, isomorphism of graphs and coloring property of a graph using ideal graph.
Manoharan, R., Vasuki, R.
core   +1 more source

NPA Hierarchy for Quantum Isomorphism and Homomorphism Indistinguishability [PDF]

open access: yesQuantum
Mančinska and Roberson [FOCS'20] showed that two graphs are quantum isomorphic if and only if they admit the same number of homomorphisms from any planar graph. Atserias et al.
Prem Nigam Kar   +3 more
doaj   +1 more source

An Optimization of Closed Frequent Subgraph Mining Algorithm

open access: yesCybernetics and Information Technologies, 2017
Graph mining isamajor area of interest within the field of data mining in recent years. Akey aspect of graph mining is frequent subgraph mining. Central to the entire discipline of frequent subgraph mining is the concept of subgraph isomorphism.
Demetrovics J.   +3 more
doaj   +1 more source

A Study of Complex Dombi Fuzzy Graph With Application in Decision Making Problems

open access: yesIEEE Access, 2022
A complex fuzzy set (CFS) is a generalization of a fuzzy set (FS) in which a limit of degrees occurs on the complex plane with unit disc. The averaging operators are a key part of turning all the data into one value.
Ehsan Mehboob Ahmed Butt   +4 more
doaj   +1 more source

Approximate Graph Isomorphism [PDF]

open access: yes, 2012
We study optimization versions of Graph Isomorphism. Given two graphs G1,G2, we are interested in finding a bijection π from V(G1) to V(G2) that maximizes the number of matches (edges mapped to edges or non-edges mapped to non-edges).
Vikraman Arvind   +3 more
openaire   +3 more sources

Symmetry Reduced Model Checking for B [PDF]

open access: yes, 2007
Symmetry reduction is a technique that can help alleviate the problem of state space explosion in model checking. The idea is to verify only a subset of states from each class (orbit) of symmetric states.
Edd Turner   +7 more
core   +2 more sources

Order Reconfiguration under Width Constraints

open access: yesJournal of Graph Algorithms and Applications, 2023
In this work, we consider the following order reconfiguration problem: Given a graph $G$ together with linear orders $\omega$ and $\omega'$ of the vertices of $G$, can one transform $\omega$ into $\omega'$ by a sequence of swaps of adjacent elements in ...
Emmanuel Arrighi   +3 more
doaj   +1 more source

Total Minimal Dominating Signed Graph [PDF]

open access: yes, 2010
Cartwright and Harary considered graphs in which vertices represent persons and the edges represent symmetric dyadic relations amongst persons each of which designated as being positive or negative according to whether the nature of the relationship is ...
Reddy, Siva Kota, Vijay, S.
core   +1 more source

Searching Isomorphic Graphs

open access: yesTransactions on Networks and Communications, 2017
To determine that two given undirected graphs are isomorphic, we construct for them auxiliary graphs, using the breadth-first search. This makes capability to position vertices in each digraph with respect to each other. If the given graphs are isomorphic, in each of them we can find such positionally equivalent auxiliary digraphs that have the same ...
openaire   +3 more sources

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