Results 21 to 30 of about 2,372,931 (298)

ALGORITMO DE COBERTURA DE VÉRTICES

open access: yesRevista Ingeniería, Matemáticas y Ciencias de la Información, 2023
Problem to solve P=NP, using the coverage problem of a graph that is NP and convert it to P. In the mathematicaldiscipline of graph theory, a vertex cover, simply a graph cover, is a set of vertices such that each edge of the graph isincident to at least
Javier López Wong
doaj   +1 more source

Verified Approximation Algorithms [PDF]

open access: yesLogical Methods in Computer Science, 2022
We present the first formal verification of approximation algorithms for NP-complete optimization problems: vertex cover, independent set, set cover, center selection, load balancing, and bin packing.
Robin Eßmann   +3 more
doaj   +1 more source

An improved algorithm for the vertex cover $P_3$ problem on graphs of bounded treewidth [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
Given a graph $G=(V,E)$ and a positive integer $t\geq2$, the task in the vertex cover $P_t$ ($VCP_t$) problem is to find a minimum subset of vertices $F\subseteq V$ such that every path of order $t$ in $G$ contains at least one vertex from $F$.
Zongwen Bai, Jianhua Tu, Yongtang Shi
doaj   +1 more source

The Price of Connectivity for Vertex Cover [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Graph ...
Eglantine Camby   +3 more
doaj   +1 more source

Truly non-trivial graphoidal graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
A graphoidal cover of a graph G is a collection [Formula: see text] of non-trivial paths in G, which are not necessarily open, such that every vertex of G is an internal vertex of at most one path in [Formula: see text] and every edge of G is in exactly ...
Rajesh Singh, Purnima Gupta, S. Arumugam
doaj   +1 more source

Dimension Incremental Feature Selection Approach for Vertex Cover of Hypergraph Using Rough Sets

open access: yesIEEE Access, 2018
The minimum vertex cover problem is a well-known optimization problem; it has been used in a wide variety of applications. This paper focuses on rough set-based approach for the minimum vertex cover problem of the dynamic and static hypergraphs.
Qian Zhou, Xiaolin Qin, Xiaojun Xie
doaj   +1 more source

The Quantum Alternating Operator Ansatz on Maximum k-Vertex Cover [PDF]

open access: yesInternational Conference on Quantum Computing and Engineering, 2019
The Quantum Alternating Operator Ansatz is a generalization of the Quantum Approximate Optimization Algorithm (QAOA) designed for finding approximate solutions to combinatorial optimization problems with hard constraints.
Jeremy Cook   +2 more
semanticscholar   +1 more source

Domination in graphoidally covered graphs: Least-kernel graphoidal graphs-II

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
Given a graph , not necessarily finite, a graphoidal cover of means a collection of non-trivial paths in called -edges, which are not necessarily open (not necessarily finite), such that every vertex of is an internal vertex of at most one path in and ...
Purnima Gupta, Rajesh Singh
doaj   +2 more sources

Improved Massively Parallel Computation Algorithms for MIS, Matching, and Vertex Cover [PDF]

open access: yesACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing, 2018
We present O(loglog n) -round algorithms in the Massively Parallel Computation (MPC) model, with Õ (n) memory per machine, that compute a maximal independent set, a 1+ε approximation of maximum matching, and a 2+εapproximation of minimum vertex cover ...
M. Ghaffari   +3 more
semanticscholar   +1 more source

Network theoretic analysis of JAK/STAT pathway and extrapolation to drugs and viruses including COVID-19

open access: yesScientific Reports, 2021
Whenever some phenomenon can be represented as a graph or a network it seems pertinent to explore how much the mathematical properties of that network impact the phenomenon. In this study we explore the same philosophy in the context of immunology.
Arindam Banerjee   +2 more
doaj   +1 more source

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