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IWOCA
2009
Springer
123views Algorithms» more  IWOCA 2009»
13 years 12 months ago
Computability of Width of Submodular Partition Functions
The notion of submodular partition functions generalizes many of well-known tree decompositions of graphs. For fixed k, there are polynomial-time algorithms to determine whether ...
Petr Skoda
ICALP
1995
Springer
13 years 9 months ago
Shortest Path Queries in Digraphs of Small Treewidth
We consider the problem of preprocessing an n-vertex digraph with real edge weights so that subsequent queries for the shortest path or distance between any two vertices can be ef...
Shiva Chaudhuri, Christos D. Zaroliagis
PODS
2006
ACM
104views Database» more  PODS 2006»
14 years 5 months ago
Tractable database design through bounded treewidth
Given that most elementary problems in database design are NP-hard, the currently used database design algorithms produce suboptimal results. For example, the current 3NF decompos...
Georg Gottlob, Reinhard Pichler, Fang Wei
LPNMR
2009
Springer
13 years 12 months ago
Belief Revision with Bounded Treewidth
Problems arising from the revision of propositional knowledge bases have been intensively studied for two decades. Many different approaches to revision have thus been suggested, w...
Reinhard Pichler, Stefan Rümmele, Stefan Wolt...
MFCS
2005
Springer
13 years 11 months ago
Nondeterministic Graph Searching: From Pathwidth to Treewidth
Abstract. We introduce nondeterministic graph searching with a controlled amount of nondeterminism and show how this new tool can be used in algorithm design and combinatorial anal...
Fedor V. Fomin, Pierre Fraigniaud, Nicolas Nisse