APPROX
2007
Springer
14 years 2 months ago
2007
Springer
APPROX
2007
Springer
14 years 2 months ago
2007
Springer
We show that the multi-commodity max-flow/min-cut gap for series-parallel graphs can be as bad as 2, matching a recent upper bound [8] for this class, and resolving one side of a ...
APPROX
2007
Springer
14 years 2 months ago
2007
Springer
We prove a lower bound for swapping the order of Arthur and Merlin in two-round MerlinArthur games using black-box techniques. Namely, we show that any AM-game requires time (t2 )...
APPROX
2007
Springer
14 years 2 months ago
2007
Springer
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
Abstract. We consider the problem of approximating the average distance between pairs of points in a high-dimensional Euclidean space, and more generally in any metric space. We co...
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
Abstract. We study the problem embedding an n-point metric space into another n-point metric space while minimizing distortion. We show that there is no polynomial time algorithm t...
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
We investigate the problem of computing a minimum set of solutions that approximates within a specified accuracy the Pareto curve of a multiobjective optimization problem. We show...
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
APPROX
2007
Springer
14 years 5 months ago
2007
Springer
Abstract Consider a situation where a group of agents wishes to share the costs of their joint actions, and needs to determine how to distribute the costs amongst themselves in a f...