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» Vertex coloring acyclic digraphs and their corresponding hyp...
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DAM
2008
59views more  DAM 2008»
13 years 4 months ago
Vertex coloring acyclic digraphs and their corresponding hypergraphs
We consider vertex coloring of an acyclic digraph G in such a way that two vertices which have a common ancestor in G receive distinct colors. Such colorings arise in a natural wa...
Geir Agnarsson, Ágúst S. Egilsson, M...
AI
2002
Springer
13 years 4 months ago
The size distribution for Markov equivalence classes of acyclic digraph models
Bayesian networks, equivalently graphical Markov models determined by acyclic digraphs or ADGs (also called directed acyclic graphs or dags), have proved to be both effective and ...
Steven B. Gillispie, Michael D. Perlman
DAM
2008
108views more  DAM 2008»
13 years 4 months ago
On the complexity of the multicut problem in bounded tree-width graphs and digraphs
Given an edge- or vertex-weighted graph or digraph and a list of source-sink pairs, the minimum multicut problem consists in selecting a minimum weight set of edges or vertices wh...
Cédric Bentz
IPPS
2007
IEEE
13 years 11 months ago
Minimum number of wavelengths equals load in a DAG without internal cycle
Let P be a family of dipaths. The load of an arc is the number of dipaths containing this arc. Let π(G, P) be the maximum of the load of all the arcs and let w(G, P) be the minim...
Jean-Claude Bermond, Michel Cosnard
WG
2010
Springer
13 years 3 months ago
max-cut and Containment Relations in Graphs
book Author Title 58 Bijo S Anand Atoms and clique separators in graph products 59 Asir T Domination in total graph of a commutative ring 60 Sharada B On the Neighbourhood Subdivi...
Marcin Kaminski