Sciweavers

55 search results - page 4 / 11
» A Specialized Interior-Point Algorithm for Multicommodity Ne...
Sort
View
FOCS
2002
IEEE
14 years 12 days ago
A Constant-Factor Approximation Algorithm for the Multicommodity
We present the first constant-factor approximation algorithm for network design with multiple commodities and economies of scale. We consider the rent-or-buy problem, a type of m...
Amit Kumar, Anupam Gupta, Tim Roughgarden
MIDDLEWARE
2007
Springer
14 years 1 months ago
A multi-commodity flow approach to maximising utility in linked market-based grids
In this paper we consider the problem of maximising utility in linked market-driven distributed and Grid systems. In such systems, users submit jobs through brokers who can virtua...
James Broberg, Rajkumar Buyya
ICCSA
2005
Springer
14 years 29 days ago
Evolutionary Algorithm for Congestion Problem in Connection-Oriented Networks
The major objective of this paper is to deploy an effective evolutionary algorithm (EA) for the congestion problem in connection-oriented networks. The network flow is modeled as n...
Michal Przewozniczek, Krzysztof Walkowiak
ESA
2004
Springer
145views Algorithms» more  ESA 2004»
14 years 25 days ago
Flows on Few Paths: Algorithms and Lower Bounds
Abstract. Classical network flow theory allows decomposition of flow into several chunks of arbitrary sizes traveling through the network on different paths. In the first part ...
Maren Martens, Martin Skutella
JACM
2007
121views more  JACM 2007»
13 years 7 months ago
(Almost) Tight bounds and existence theorems for single-commodity confluent flows
A flow of a commodity is said to be confluent if at any node all the flow of the commodity leaves along a single edge. In this paper we study single-commodity confluent flow pro...
Jiangzhuo Chen, Robert D. Kleinberg, Lászl&...