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CIAC
2010
Springer
282views Algorithms» more  CIAC 2010»
15 years 10 months ago
Improved Approximations for TSP with Simple Precedence Constraints
In this paper, we consider variants of the traveling salesman problem with precedence constraints. We characterize hard input instances for Christofides' algorithm and Hoogeve...
Hans-Joachim Boeckenhauer, Ralf Klasing, Tobias Mo...
AUTOMATICA
2010
129views more  AUTOMATICA 2010»
15 years 6 months ago
Stability analysis for multi-agent systems using the incidence matrix: Quantized communication and formation control
The spectral properties of the incidence matrix of the communication graph are exploited to provide solutions to two multiagent control problems. In particular, we consider the pr...
Dimos V. Dimarogonas, Karl Henrik Johansson
FOCS
2000
IEEE
15 years 11 months ago
A polylogarithmic approximation of the minimum bisection
A bisection of a graph with n vertices is a partition of its vertices into two sets, each of size n/2. The bisection cost is the number of edges connecting the two sets. The proble...
Uriel Feige, Robert Krauthgamer
SIGCSE
2000
ACM
139views Education» more  SIGCSE 2000»
15 years 11 months ago
Design and analysis of algorithms reconsidered
The paper elucidates two views (models) of algorithmic problem solving. The first one is static; it is based on the identification of several principal dimensions of algorithmic p...
Anany Levitin
WSC
2008
15 years 9 months ago
The mathematics of continuous-variable simulation optimization
Continuous-variable simulation optimization problems are those optimization problems where the objective function is computed through stochastic simulation and the decision variab...
Sujin Kim, Shane G. Henderson