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WG
2005
Springer
16 years 5 days ago
Computation of Chromatic Polynomials Using Triangulations and Clique Trees
In this paper, we present a new algorithm for computing the chromatic polynomial of a general graph G. Our method is based on the addition of edges and contraction of non-edges of ...
Pascal Berthomé, Sylvain Lebresne, Kim Nguy...
WAW
2004
Springer
96views Algorithms» more  WAW 2004»
16 years 1 days ago
A Geometric Preferential Attachment Model of Networks
We study a random graph Gn that combines certain aspects of geometric random graphs and preferential attachment graphs. The vertices of Gn are n sequentially generated points x1, ...
Abraham Flaxman, Alan M. Frieze, Juan Vera
ALGORITHMICA
2002
116views more  ALGORITHMICA 2002»
15 years 6 months ago
Budget Management with Applications
Given a directed acyclic graph with timing constraints, the budget management problem is to assigntoeachvertexanincrementaldelaysuchthatthesumofthesedelaysismaximizedwithoutviolati...
Chunhong Chen, Elaheh Bozorgzadeh, Ankur Srivastav...
TCS
2010
15 years 5 months ago
Computing the graph-based parallel complexity of gene assembly
We consider a graph-theoretical formalization of the process of gene assembly in ciliates introduced in Ehrenfeucht et al (2003), where a gene is modeled as a signed graph. The ge...
Artiom Alhazov, Chang Li, Ion Petre
STOC
2010
ACM
295views Algorithms» more  STOC 2010»
15 years 11 months ago
Approximation Schemes for Steiner Forest on Planar Graphs and Graphs of Bounded Treewidth
We give the first polynomial-time approximation scheme (PTAS) for the Steiner forest problem on planar graphs and, more generally, on graphs of bounded genus. As a first step, w...
MohammadHossein Bateni, MohammadTaghi Hajiaghayi a...