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STOC
2007
ACM
109views Algorithms» more  STOC 2007»
14 years 9 months ago
Stability of the max-weight routing and scheduling protocol in dynamic networks and at critical loads
We study the stability of the Max-Weight protocol for combined routing and scheduling in communication networks. Previous work has shown that this protocol is stable for adversari...
Matthew Andrews, Kyomin Jung, Alexander L. Stolyar
FOCS
2009
IEEE
14 years 3 months ago
Approximation Algorithms for Multicommodity-Type Problems with Guarantees Independent of the Graph Size
— Linial, London and Rabinovich [16] and Aumann and Rabani [3] proved that the min-cut max-flow ratio for general maximum concurrent flow problems (when there are k commodities...
Ankur Moitra
STOC
2006
ACM
174views Algorithms» more  STOC 2006»
14 years 9 months ago
Edge-disjoint paths in Planar graphs with constant congestion
We study the maximum edge-disjoint paths problem in undirected planar graphs: given a graph G and node pairs s1t1, s2t2, . . ., sktk, the goal is to maximize the number of pairs t...
Chandra Chekuri, Sanjeev Khanna, F. Bruce Shepherd
OR
2004
Springer
14 years 2 months ago
Freight Flow Consolidation in Presence of Time Windows
This contribution addresses the consideration of time windows in the optimization of multi-commodity network flows. For each node, one interval is specified in which the visitati...
Jörn Schönberger, Herbert Kopfer
SIAMJO
2000
74views more  SIAMJO 2000»
13 years 8 months ago
A Specialized Interior-Point Algorithm for Multicommodity Network Flows
Abstract. Despite the efficiency shown by interior-point methods in large-scale linear programming, they usually perform poorly when applied to multicommodity flow problems. The ne...
Jordi Castro