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» Exact Algorithms for the Vertex Separator Problem in Graphs
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ISCAS
2005
IEEE
129views Hardware» more  ISCAS 2005»
14 years 28 days ago
Partitioning graphs of supply and demand
: Assume that each vertex of a graph G is either a supply vertex or a demand vertex and is assigned a positive integer, called a supply or a demand. Each demand vertex can receive ...
Takehiro Ito, Xiao Zhou, Takao Nishizeki
MFCS
2007
Springer
14 years 1 months ago
Exact Algorithms for L (2, 1)-Labeling of Graphs
The notion of distance constrained graph labelings, motivated by the Frequency Assignment Problem, reads as follows: A mapping from the vertex set of a graph G = (V, E) into an in...
Jan Kratochvíl, Dieter Kratsch, Mathieu Lie...
ESA
2003
Springer
124views Algorithms» more  ESA 2003»
14 years 17 days ago
The Minimum Generalized Vertex Cover Problem
Let G = (V, E) be an undirected graph, with three numbers d0(e) ≥ d1(e) ≥ d2(e) ≥ 0 for each edge e ∈ E. A solution is a subset U ⊆ V and di(e) represents the cost contr...
Refael Hassin, Asaf Levin
COR
2006
88views more  COR 2006»
13 years 7 months ago
An exact algorithm for the capacitated vertex p-center problem
We develop a simple and practical exact algorithm for the problem of locating p facilities and assigning clients7 to them within capacity restrictions in order to minimize the max...
F. Aykut Özsoy, Mustafa Ç. Pinar
ICALP
2005
Springer
14 years 26 days ago
Approximation Algorithms for the Max-coloring Problem
Given a graph G = (V, E) and positive integral vertex weights w : V → N, the max-coloring problem seeks to find a proper vertex coloring of G whose color classes C1, C2, . . . ,...
Sriram V. Pemmaraju, Rajiv Raman