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NETWORKS
2008
13 years 10 months ago
Lagrangian relaxation and enumeration for solving constrained shortest-path problems
Recently published research indicates that a vertex-labeling algorithm based on dynamic-programming concepts is the most efficient procedure available for solving constrained shor...
W. Matthew Carlyle, Johannes O. Royset, R. Kevin W...
NETWORKS
2008
13 years 10 months ago
A linear programming approach to increasing the weight of all minimum spanning trees
Given a graph where increasing the weight of an edge has a nondecreasing convex piecewise linear cost, we study the problem of finding a minimum cost increase of the weights so tha...
Mourad Baïou, Francisco Barahona
NETWORKS
2008
13 years 10 months ago
Grooming for two-period optical networks
Minimizing the number of add-drop multiplexers (ADMs) in a unidirectional SONET ring can be formulated as a graph decomposition problem. When traffic requirements are uniform and ...
Charles J. Colbourn, Gaetano Quattrocchi, Violet R...
NETWORKS
2008
13 years 10 months ago
F-Chord: Improved uniform routing on Chord
Gennaro Cordasco, Luisa Gargano, Alberto Negro, Vi...
NETWORKS
2008
13 years 10 months ago
Approximation bounds for Black Hole Search problems
Ralf Klasing, Euripides Markou, Tomasz Radzik, Fab...
NETWORKS
2008
13 years 10 months ago
Lower bounds for two-period grooming via linear programming duality
In a problem arising in grooming for two-period optical networks, it is required to decompose the complete graph on n vertices into subgraphs each containing at most C edges, so t...
Charles J. Colbourn, Gaetano Quattrocchi, Violet R...
NETWORKS
2008
13 years 10 months ago
Price competition with elastic traffic
In this paper, we present a combined study of price competition and traffic control in a congested network. We study a model in which service providers own the routes in a network...
Asuman E. Ozdaglar