Results 41 to 50 of about 34,025 (156)

New Approximability Results for the Robust k-Median Problem

open access: yes, 2013
We consider a robust variant of the classical $k$-median problem, introduced by Anthony et al. \cite{AnthonyGGN10}. In the \emph{Robust $k$-Median problem}, we are given an $n$-vertex metric space $(V,d)$ and $m$ client sets $\set{S_i \subseteq V}_{i=1 ...
C. Lund   +10 more
core   +1 more source

Direct block scheduling technology: Analysis of Avidity

open access: yesREM: International Engineering Journal
This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit.
Felipe Ribeiro Souza   +8 more
doaj   +1 more source

Runtime analysis of randomized search heuristics for dynamic graph coloring [PDF]

open access: yesProceedings of the Genetic and Evolutionary Computation Conference, 2019
We contribute to the theoretical understanding of randomized search heuristics for dynamic problems. We consider the classical graph coloring problem and investigate the dynamic setting where edges are added to the current graph. We then analyze the expected time for randomized search heuristics to recompute high quality solutions. This includes the (1+
Bossek, J.   +3 more
openaire   +2 more sources

An Extended Jump Functions Benchmark for the Analysis of Randomized Search Heuristics

open access: yesAlgorithmica, 2022
Extended version of a paper that appeared in the proceedings of GECCO 2021.
Henry Bambury   +2 more
openaire   +4 more sources

Black-Box Complexity: Breaking the $O(n \log n)$ Barrier of LeadingOnes

open access: yes, 2012
We show that the unrestricted black-box complexity of the $n$-dimensional XOR- and permutation-invariant LeadingOnes function class is $O(n \log (n) / \log \log n)$. This shows that the recent natural looking $O(n\log n)$ bound is not tight.
B. Doerr, S. Droste, S. Droste
core   +1 more source

how randomized search heuristics find maximum cliques in planar graphs [PDF]

open access: yesProceedings of the 8th annual conference on Genetic and evolutionary computation, 2006
Surprisingly, general search heuristics often solve combinatorial problems quite sufficiently, although they do not outperform specialized algorithms. Here, the behavior of simple randomized optimizers on the maximum clique problem on planar graphs is investigated rigorously. The focus is on the worst-, average-, and semi-average-case behaviors.
openaire   +3 more sources

Analyzing randomized search heuristics via stochastic domination

open access: yesTheoretical Computer Science, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Particle algorithms for optimization on binary spaces

open access: yes, 2011
We discuss a unified approach to stochastic optimization of pseudo-Boolean objective functions based on particle methods, including the cross-entropy method and simulated annealing as special cases.
Schäfer, Christian
core   +2 more sources

OneMax in Black-Box Models with Several Restrictions

open access: yes, 2015
Black-box complexity studies lower bounds for the efficiency of general-purpose black-box optimization algorithms such as evolutionary algorithms and other search heuristics.
Doerr, Carola, Lengler, Johannes
core   +4 more sources

Randomized Search Heuristics as an Alternative to Exact Optimization [PDF]

open access: yes, 2004
There are many alternatives to handle discrete optimization problems in applications. Problem-specific algorithms vs. heuristics, exact optimization vs. approximation vs. heuristic solutions, guaranteed run time vs. expected run time vs. experimental run time analysis. Here, a framework for a theory of randomized search heuristics is presented. After a
openaire   +3 more sources

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