Sciweavers

14165 search results - page 200 / 2833
» The generalized two-server problem
Sort
View
STOC
2006
ACM
113views Algorithms» more  STOC 2006»
15 years 10 months ago
Logarithmic hardness of the directed congestion minimization problem
We show that for any constant ε > 0, there is no Ω(log1−ε M)approximation algorithm for the directed congestion minimization problem on networks of size M unless NP ⊆ Z...
Matthew Andrews, Lisa Zhang
EVOW
2005
Springer
15 years 10 months ago
Property Analysis of Symmetric Travelling Salesman Problem Instances Acquired Through Evolution
We show how an evolutionary algorithm can successfully be used to evolve a set of difficult to solve symmetric travelling salesman problem instances for two variants of the Lin-Ker...
Jano I. van Hemert
ESA
2001
Springer
145views Algorithms» more  ESA 2001»
15 years 9 months ago
Grouping Techniques for Scheduling Problems: Simpler and Faster
In this paper we describe a general grouping technique to devise faster and simpler approximation schemes for several scheduling problems. We illustrate the technique on two diff...
Aleksei V. Fishkin, Klaus Jansen, Monaldo Mastroli...
GECCO
2010
Springer
168views Optimization» more  GECCO 2010»
15 years 8 months ago
Elementary landscapes of frequency assignment problems
We analyze various forms of the Frequency Assignment Problem using the theory of elementary landscapes. We show that three variants of the Frequency Assignment Problem are either ...
L. Darrell Whitley, J. Francisco Chicano, Enrique ...
COCOON
2004
Springer
15 years 8 months ago
k-Center Problems with Minimum Coverage
In this work, we study an extension of the k-center facility location problem, where centers are required to service a minimum of clients. This problem is motivated by requirement...
Andrew Lim, Brian Rodrigues, Fan Wang, Zhou Xu