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» Improved bounds for the unsplittable flow problem
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WAOA
2005
Springer
177views Algorithms» more  WAOA 2005»
13 years 11 months ago
Approximation and Complexity of k-Splittable Flows
Given a graph with a source and a sink node, the NP–hard maximum k–splittable flow (MkSF) problem is to find a flow of maximum value with a flow decomposition using at most...
Ronald Koch, Martin Skutella, Ines Spenke
SODA
2001
ACM
93views Algorithms» more  SODA 2001»
13 years 7 months ago
Improved algorithms for 3-coloring, 3-edge-coloring, and constraint satisfaction
We consider worst case time bounds for NP-complete problems including 3-SAT, 3-coloring, 3-edge-coloring, and 3list-coloring. Our algorithms are based on a constraint satisfaction...
David Eppstein
FOCS
1997
IEEE
13 years 10 months ago
Beyond the Flow Decomposition Barrier
We introduce a new approach to the maximum flow problem. This approach is based on assigning arc lengths based on the residual flow value and the residual arc capacities. Our appro...
Andrew V. Goldberg, Satish Rao
CISS
2007
IEEE
14 years 2 days ago
Detecting Information Flows: Improving Chaff Tolerance by Joint Detection
— The problem of detecting encrypted information flows using timing information is considered. An information flow consists of both information-carrying packets and irrelevant ...
Ting He, Lang Tong
MP
2006
116views more  MP 2006»
13 years 5 months ago
Formulations and Valid Inequalities for the Heterogeneous Vehicle Routing Problem
We consider the vehicle routing problem where one can choose among vehicles with different costs and capacities to serve the trips. We develop six different formulations: the first...
Hande Yaman