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ESA
2004
Springer
129views Algorithms» more  ESA 2004»
15 years 6 months ago
Contraction and Treewidth Lower Bounds
Edge contraction is shown to be a useful mechanism to improve lower bound heuristics for treewidth. A successful lower bound for treewidth is the degeneracy: the maximum over all ...
Hans L. Bodlaender, Arie M. C. A. Koster, Thomas W...
EPS
1998
Springer
15 years 5 months ago
Evolutionary Algorithms for Vertex Cover
This paper reports work investigating various evolutionary approaches to vertex cover (VC), a well-known NP-Hard optimization problem. Central to each of the algorithms is a novel ...
Isaac K. Evans
APPROX
2004
Springer
149views Algorithms» more  APPROX 2004»
15 years 6 months ago
Edge Coloring with Delays
Consider the following communication problem, that leads to a new notion of edge coloring. The communication network is represented by a bipartite multigraph, where the nodes on o...
Noga Alon, Vera Asodi
MST
2007
154views more  MST 2007»
15 years 12 days ago
Crown Structures for Vertex Cover Kernelization
Crown structures in a graph are defined and shown to be useful in kernelization algorithms for the classic vertex cover problem. Two vertex cover kernelization methods are discus...
Faisal N. Abu-Khzam, Michael R. Fellows, Michael A...
GPC
2007
Springer
15 years 7 months ago
Optimizing Server Placement for QoS Requirements in Hierarchical Grid Environments
This paper focuses on two problems related to QoS-aware I/O server placement in hierarchical Grid environments. Given a hierarchical network with requests from clients, the network...
Chien-Min Wang, Chun-Chen Hsu, Pangfeng Liu, Hsi-M...