Results 1 to 10 of about 1,486,225 (170)

Chemical reaction optimization for the set covering problem [PDF]

open access: green, 2014
The set covering problem (SCP) is one of the representative combinatorial optimization problems, having many practical applications. This paper investigates the development of an algorithm to solve SCP by employing chemical reaction optimization (CRO), a
Lam, AYS, Li, VOK, Yu, JJQ
core   +3 more sources

An indirect genetic algorithm for set covering problems [PDF]

open access: greenJournal of the Operational Research Society, 2002
This paper presents a new type of genetic algorithm for the set covering problem. It differs from previous evolutionary approaches first because it is an indirect algorithm, i.e. the actual solutions are found by an external decoder function. The genetic algorithm itself provides this decoder with permutations of the solution variables and other ...
Uwe Aickelin
openaire   +8 more sources

The online set cover problem [PDF]

open access: yesProceedings of the thirty-fifth annual ACM symposium on Theory of computing, 2003
Let X=[1,2,•••,n] be a ground set of n elements, and let S be a family of subsets of X, |S|=m, with a positive cost cS associated with each S ∈ S.Consider the following online version of the set cover problem, described as a game between an algorithm and an adversary. An adversary gives elements to the algorithm from X one-by-one. Once a new element is
Noga Alon, Baruch Awerbuch, Yossi Azar
openaire   +3 more sources

The Angular Set Covering Problem

open access: yesIEEE Access, 2023
We present an innovative extension of the Set Covering Problem, transitioning from a traditional radial covering to an angular covering structure. The decisions are based on locating the facilities and identifying the directional servers installed in each, covering a set of points in a geographic area.
Fredy Barriga-Gallegos   +2 more
openaire   +2 more sources

Approximation Algorithms for Union and Intersection Covering Problems [PDF]

open access: yes, 2011
In a classical covering problem, we are given a set of requests that we need to satisfy (fully or partially), by buying a subset of items at minimum cost. For example, in the k-MST problem we want to find the cheapest tree spanning at least k nodes of an
Cygan, Marek   +5 more
core   +5 more sources

On Asymmetric Coverings and Covering Numbers [PDF]

open access: yes, 2002
An asymmetric covering D(n,R) is a collection of special subsets S of an n-set such that every subset T of the n-set is contained in at least one special S with |S| - |T|
Applegate, David   +2 more
core   +5 more sources

Unsplittable coverings in the plane [PDF]

open access: yes, 2015
A system of sets forms an {\em $m$-fold covering} of a set $X$ if every point of $X$ belongs to at least $m$ of its members. A $1$-fold covering is called a {\em covering}.
A Asinowski   +28 more
core   +4 more sources

The minimum-entropy set cover problem

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Halperin, Eran, Karp, Richard M.
openaire   +2 more sources

On Polynomial Kernels for Integer Linear Programs: Covering, Packing and Feasibility [PDF]

open access: yes, 2013
We study the existence of polynomial kernels for the problem of deciding feasibility of integer linear programs (ILPs), and for finding good solutions for covering and packing ILPs. Our main results are as follows: First, we show that the ILP Feasibility
Kratsch, Stefan
core   +1 more source

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