Sciweavers

2 search results - page 1 / 1
» Autonomous Sets - A Method for Hypergraph Decomposition with...
Sort
View
FOIKS
2008
Springer
13 years 6 months ago
Autonomous Sets - A Method for Hypergraph Decomposition with Applications in Database Theory
We present a method for decomposing a hypergraph with certain regularities into smaller hypergraphs. By applying this to the set of all canonical covers of a given set of functiona...
Henning Köhler
PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 5 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...