33 search results - page 2 / 7 » Polynomial-Time Approximation Schemes for Subset-Connectivit... |
SODA
1998
ACM
13 years 6 months ago
1998
ACM
Given an undirected graph with nonnegative costs on the edges, the routing cost of any of its spanning trees is the sum over all pairs of vertices of the cost of the path between t...
SODA
2010
ACM
14 years 2 months ago
2010
ACM
Bidimensionality theory appears to be a powerful framework in the development of meta-algorithmic techniques. It was introduced by Demaine et al. [J. ACM 2005 ] as a tool to obtai...
SIAMCOMP
2011
12 years 7 months ago
2011
We consider the Minimum Linear Arrangement problem and the (Uniform) Sparsest Cut problem. So far, these two notorious NP-hard graph problems have resisted all attempts to prove in...
DAM
2006
13 years 5 months ago
2006
Subtree filament graphs are the intersection graphs of subtree filaments in a tree. This class of graphs contains subtree overlap graphs, interval filament graphs, chordal graphs,...
STACS
2009
Springer
13 years 11 months ago
2009
Springer
The notions of hypertree width and generalized hypertree width were introduced by Gottlob, Leone, and Scarcello in order to extend the concept of hypergraph acyclicity. These noti...