54 search results - page 6 / 11 » Small graph classes and bounded expansion |
WDAG
2010
Springer
13 years 6 months ago
2010
Springer
Abstract. Since in general it is NP-hard to solve the minimum dominating set problem even approximatively, a lot of work has been dedicated to central and distributed approximation...
MFCS
2007
Springer
14 years 1 months ago
2007
Springer
We show that every NP problem is polynomially equivalent to a simple combinatorial problem: the membership problem for a special class of digraphs. These classes are defined by me...
COMGEO
2011
ACM
13 years 2 months ago
2011
ACM
Let P be a set of n points in the plane. A geometric proximity graph on P is a graph where two points are connected by a straight-line segment if they satisfy some prescribed prox...
IJCV
2012
11 years 10 months ago
2012
Abstract Computer vision is full of problems elegantly expressed in terms of energy minimization. We characterize a class of energies with hierarchical costs and propose a novel hi...
APPROX
2008
Springer
13 years 9 months ago
2008
Springer
We consider testing directed graphs for being Eulerian in the orientation model introduced in [15]. Despite the local nature of the property of being Eulerian, it turns out to be ...