APPROX
2007
Springer
13 years 8 months ago
2007
Springer
APPROX
2007
Springer
13 years 8 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
13 years 8 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
13 years 8 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
13 years 11 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
13 years 11 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
13 years 11 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
13 years 11 months ago
2007
Springer
APPROX
2007
Springer
13 years 11 months ago
2007
Springer
APPROX
2007
Springer
13 years 11 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...