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» The Complexity of the Approximation of the Bandwidth Problem
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SOFSEM
2009
Springer
16 years 18 days ago
The Shortcut Problem - Complexity and Approximation
During the last years, speed-up techniques for DIJKSTRA’s algorithm have been developed that make the computation of shortest paths a matter of microseconds even on huge road net...
Reinhard Bauer, Gianlorenzo D'Angelo, Daniel Delli...
123
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WG
2007
Springer
15 years 9 months ago
Complexity and Approximation Results for the Connected Vertex Cover Problem
We study a variation of the vertex cover problem where it is required that the graph induced by the vertex cover is connected. We prove that this problem is polynomial in chordal g...
Bruno Escoffier, Laurent Gourvès, Jé...
148
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TAMC
2007
Springer
15 years 9 months ago
Approximability and Parameterized Complexity of Consecutive Ones Submatrix Problems
Abstract. We develop a refinement of a forbidden submatrix characterization of 0/1-matrices fulfilling the Consecutive Ones Property (C1P). This novel characterization finds app...
Michael Dom, Jiong Guo, Rolf Niedermeier
109
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4OR
2008
56views more  4OR 2008»
15 years 3 months ago
Exact and approximate resolution of integral multiflow and multicut problems: algorithms and complexity
This is a summary of the author's PhD thesis supervised by Marie-Christine Costa and Fr
Cédric Bentz