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APPROX
2010
Springer
220views Algorithms» more  APPROX 2010»
14 years 11 months ago
Constant Approximation Algorithms for Embedding Graph Metrics into Trees and Outerplanar Graphs
We present a simple factor 6 algorithm for approximating the optimal multiplicative distortion of embedding (unweighted) graph metrics into tree metrics (thus improving and simplif...
Victor Chepoi, Feodor F. Dragan, Ilan Newman, Yuri...
65
Voted
COCOON
2005
Springer
15 years 3 months ago
Bounded Degree Closest k-Tree Power Is NP-Complete
Abstract. An undirected graph G = (V, E) is the k-power of an undirected tree T = (V, E ) if (u, v) ∈ E iff u and v are connected by a path of length at most k in T. The tree T ...
Michael Dom, Jiong Guo, Rolf Niedermeier
73
Voted
LCN
2007
IEEE
15 years 4 months ago
A Scalable Hybrid Approach to Switching in Metro Ethernet Networks
—The most common technology in Local Area Networks is the Ethernet protocol. The continuing evolution of Ethernet has propelled it into the scope of Metropolitan Area Networks. E...
Minh Huynh, Prasant Mohapatra
JAPLL
2006
114views more  JAPLL 2006»
14 years 9 months ago
The monadic second-order logic of graphs XV: On a conjecture by D. Seese
A conjecture by D. Seese states that if a set of graphs has a decidable monadic second-order theory, then it is the image of a set of trees under a transformation defined by monad...
Bruno Courcelle
GD
2006
Springer
15 years 1 months ago
Partitions of Graphs into Trees
In this paper, we study the k-tree partition problem which is a partition of the set of edges of a graph into k edge-disjoint trees. This problem occurs at several places with appl...
Therese C. Biedl, Franz-Josef Brandenburg