Combinatorial Algorithms for the Unsplittable Flow Problem
โ Scribed by Yossi Azar; Oded Regev
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 311 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0178-4617
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
In a recent paper Chekuri and Khanna improved the analysis of the greedy algorithm for the edge disjoint paths problem and proved the same bounds also for the related uniform capacity unsplittable flow problem. Here we show that their ideas can be used to get the same approximation ratio even for th
Generalized network flow problems generalize normal network flow problems by specifying a flow multiplier ยต v w for each arc v w . For every unit of flow entering the arc, ยต v w units of flow exit. We present a strongly polynomial algorithm for a single-source generalized shortest paths problem, usi
An inverse optimization problem is defined as follows: Let S denote the set of feasible solutions of an optimization problem P, let c be a specified cost vector, and x 0 สฆ S. We want to perturb the cost vector c to d so that x 0 is an optimal solution of P with respect to the cost vector d, and wสd