Results 31 to 40 of about 925,039 (306)

Dominating Vertex Covers: The Vertex-Edge Domination Problem

open access: yesDiscussiones Mathematicae Graph Theory, 2021
The vertex-edge domination number of a graph, γve(G), is defined to be the cardinality of a smallest set D such that there exists a vertex cover C of G such that each vertex in C is dominated by a vertex in D.
Klostermeyer William F.   +2 more
doaj   +1 more source

SCMC: An Efficient Scheme for Minimizing Energy in WSNs Using a Set Cover Approach

open access: yesFuture Internet, 2017
Energy-efficient clustering and routing are well known optimization problems in the study of Wireless Sensor Network (WSN) lifetime extension. In this paper, we propose an intelligent hybrid optimization algorithm based on a Set Cover approach to create ...
Ahmed Redha Mahlous
doaj   +1 more source

Weighted geometric set cover problems revisited

open access: yesJournal of Computational Geometry, 2012
We study several set cover problems in low dimensional geometric settings. Specifically, we describe a PTAS for the problem of computing a minimum cover of given points by a set of weighted fat objects.
Sariel Har-Peled, Mira Lee
doaj   +1 more source

Hi–C interaction graph analysis reveals the impact of histone modifications in chromatin shape

open access: yesApplied Network Science, 2021
Chromosome conformation capture experiments such as Hi–C map the three-dimensional spatial organization of genomes in a genome-wide scale. Even though Hi–C interactions are not biased towards any of the histone modifications, previous analysis has ...
Emre Sefer
doaj   +1 more source

Parameterized streaming : maximal matching and vertex cover [PDF]

open access: yes, 2014
As graphs continue to grow in size, we seek ways to effectively process such data at scale. The model of streaming graph processing, in which a compact summary is maintained as each edge insertion/deletion is observed, is an attractive one.
Chitnis, Rajesh; id_orcid   +11 more
core   +1 more source

UNCERTAINTY ASSESSMENT OF GLOBELAND30 LAND COVER DATA SET OVER CENTRAL ASIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
GlobeLand30, the world’s first 30m-resolution global land cover data set, has recently been issued for research on global change at a fine resolution. Given the accuracy of GlobeLand30 data may show significant variation in different parts of the world ...
B. Sun   +4 more
doaj   +1 more source

Local and global lifted cover inequalities for the 0-1 multidimensional knapsack problem [PDF]

open access: yes, 2007
The 0-1 Multidimensional Knapsack Problem (0-1 MKP) is a well- known (and strongly N P -hard) combinatorial optimization problem with many applications.
Kaparis, Konstantinos   +2 more
core   +1 more source

Domination, Eternal Domination, and Clique Covering

open access: yesDiscussiones Mathematicae Graph Theory, 2015
Eternal and m-eternal domination are concerned with using mobile guards to protect a graph against infinite sequences of attacks at vertices. Eternal domination allows one guard to move per attack, whereas more than one guard may move per attack in the m-
Klostermeyer William F., Mynhardt C.M.
doaj   +1 more source

Covering Arrays via Set Covers

open access: yesElectronic Notes in Discrete Mathematics, 2018
Abstract In this paper, we provide yet another construction on how to map problems pertaining covering arrays to specialized set cover problems. With this mapping it is possible to compute optimal covering arrays via minimal solutions of the generated set cover problem.
Ludwig Kampel   +2 more
openaire   +1 more source

Remarks on Dynamic Monopolies with Given Average Thresholds

open access: yesDiscussiones Mathematicae Graph Theory, 2015
Dynamic monopolies in graphs have been studied as a model for spreading processes within networks. Together with their dual notion, the generalized degenerate sets, they form the immediate generalization of the classical notions of vertex covers and ...
Centeno Carmen C., Rautenbach Dieter
doaj   +1 more source

Home - About - Disclaimer - Privacy