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FOCS
2008
IEEE
15 years 4 months ago
Degree Bounded Network Design with Metric Costs
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
Yuk Hei Chan, Wai Shing Fung, Lap Chi Lau, Chun Ko...
IFIP
2004
Springer
15 years 3 months ago
Imperfectness of Data for STS-Based Physical Mapping
In the STS-based mapping, we are requested to obtain the correct order of probes in a DNA sequence from a given set of fragments or equivalently a hybridization matrix A. It is wel...
Hiro Ito, Kazuo Iwama, Takeyuki Tamura
FOCS
2006
IEEE
15 years 3 months ago
Minimum Bounded Degree Spanning Trees
We consider the minimum cost spanning tree problem under the restriction that all degrees must be at most a given value k. We show that we can efficiently find a spanning tree o...
Michel X. Goemans
LCN
2008
IEEE
15 years 4 months ago
Reducing network cost of many-to-many communication in unidirectional WDM rings with network coding
—In this paper we address the problem of traffic grooming in WDM rings with all-to-all and its generalization to many-to-many service by using network coding. We consider minimi...
Long Long, Ahmed E. Kamal
PDCAT
2005
Springer
15 years 3 months ago
Approximating Spanning Trees with Inner Nodes Cost
We consider the practical NP-complete problem of finding a minimum weight spanning tree with both edge weights and inner nodes weights. We present two polynomial time algorithms ...
Rudolf Fleischer, Qi Ge, Jian Li, Shijun Tian, Hai...