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DM
2010
143views more  DM 2010»
15 years 2 months ago
Acyclic improper colourings of graphs with bounded maximum degree
For graphs of bounded maximum degree, we consider acyclic t-improper colourings, that is, colourings in which each bipartite subgraph consisting of the edges between two colour cl...
Louigi Addario-Berry, Louis Esperet, Ross J. Kang,...
CORR
2006
Springer
153views Education» more  CORR 2006»
15 years 1 months ago
A distributed approximation algorithm for the minimum degree minimum weight spanning trees
Fischer proposes in [4] a sequential algorithm to compute a minimum weight spanning tree of maximum degree at most b + logb n in time O n4+1/ln b for any constant b > 1, where ...
Christian Lavault, Mario Valencia-Pabon
GLOBECOM
2008
IEEE
15 years 8 months ago
Degrees of Freedom for the 4 User SIMO Interference Channel
— The 4 user single input multiple output (SIMO) Gaussian interference channel where each transmitter has a single antenna and each receiver has two antennas is studied. We show ...
Tiangao Gou, Syed Ali Jafar
SEMCO
2008
IEEE
15 years 8 months ago
Mediatability: Estimating the Degree of Human Involvement in XML Schema Mediation
Mediation and integration of data are significant challenges because the number of services on the Web, and heterogeneities in their data representation, continue to increase rap...
Karthik Gomadam, Ajith Ranabahu, Lakshmish Ramaswa...
COCOON
2005
Springer
15 years 7 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